Weather StoryAlmanac, microseasons, and the day's weather story.

Baltimore, Maryland Weather

Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →

Baltimore weather forecast — hour by hour, 7-day outlook, NOAA radar

Baltimore, MD
Saturday, July 4 at 5:51 PM
101
°
Clear
Feels like
105°
Humidity
31%
Wind
4 mph
Sunrise
1:45 AM
Sunset
4:36 PM
Baltimore, MD
Hour by hour · 24h
24-Hour ForecastBaltimore, MD: 24-hour forecast. Temperatures range from 75 to 101 degrees Fahrenheit with a 28% chance of precipitation at 4 AM.
L 75°H 101°
Baltimore, MD
7-day forecast
  1. Today
    Jul 4
    Overcast
    22%
    —
    103°81°—
  2. Sunday
    Jul 5
    Light Drizzle
    49%
    0.02″
    95°75°-8°
  3. Monday
    Jul 6
    Heavy Drizzle
    78%
    —
    83°74°-12°
  4. Tuesday
    Jul 7
    Thunderstorm
    78%
    0.03″
    90°73°+7°
  5. Wednesday
    Jul 8
    Showers
    34%
    0.30″
    79°68°-11°
  6. Thursday
    Jul 9
    Overcast
    12%
    —
    92°70°+13°
  7. Friday
    Jul 10
    Light Drizzle
    42%
    0.01″
    93°75°+1°
Baltimore, MD
Next 24 hours · Hot now
HOT 90°70°90°110°6p12a6a12pnow 101°high 101°low 75°PRECIP %
Baltimore, MD
Anemometer · 24h winds · from true
NESW
From · True
S
180° · backing 67°
Direction
S
180°
Sustained
4
mph
Gust
10
mph
Peak 24h
20
avg 4
Beaufort · 2 · LIGHT BRZ
0
CALM
<1
1
LIGHT AIR
1–3
2
LIGHT BRZ
4–7
3
GENTLE BRZ
8–12
4
MOD BRZ
13–18
5
FRESH BRZ
19–24
6
STRONG BRZ
25–31
7
NEAR GALE
32–38
24h · sust vs gust · mph
avg 4 · pk 20 @ 4:00a
010203040MPHB1B2B3B4B5B6B7B8-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 357SUSTGUST
−24h−18h−12h−6hnow
Light breeze backing 67° from the s.
Baltimore, MD
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
1009.0
-1.8 mb in 3h · falling · 29.80 inHg
Now
1009.0
mb
3h
-1.8
mb
12h
-2.0
mb
24h
-2.0
mb
Regime · RAIN
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 1009–1013
9951000STORM|RAIN10051010RAIN|CHG1015CHG|FAIR10201025FAIR|DRY1030-21h-18h-15h-12h-9h-6h-3h-24hNOW1013.01009.11009.7
−24h−18h−12h−6hnow
Pressure giving way — clouds thicken and rain edges closer.
Baltimore, MD
Air quality
112
AQI
Unhealthy for Sensitive Groups
↑+58 in 6h

AQI 112 (Unhealthy for Sensitive Groups), driven by Ozone. AQI up 58 in the last 6 hours — air quality is degrading. Ozone at AQI 100 — peak already passed at 1 PM under clear skies. Levels should ease through evening.

CAUTION Sensitive groups (children, elderly, respiratory conditions) should limit prolonged outdoor exertion.

PM 2.5Good
8.6μg/m³
PM 10Good
10μg/m³
NO₂Good
2μg/m³
OzoneDRIVERUnhealthy SG
139μg/m³
UV IndexModerate
2.3

What's driving it

Ozone × UV × Sky

Ozone at AQI 100 — peak already passed at 1 PM under clear skies. Levels should ease through evening.

Present
AQI 100
UV peak
2.0 at earlier today
Sky at peak
clear
Projected peak
AQI 100

PM × Wind × Precip

PM2.5 at 8.6 µg/m³ (AQI 48) with a 0.90 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.

PM2.5/PM10
0.90
Wind
calm
Recent rain
0h in last 6h
Pattern
stagnant smoke

Trends

Seven days of AQI and PM2.5.

Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).

7-DAY AQI TREND50100SATSUNMONTUEWEDTHUFRISAT7-DAY PM2.5 TREND · μg/m³350
Baltimore, MD
Sky cover · visibility · 24h
Cloud cover
0%
CLEAR
100%0%−24h−18h−12h−6hnow
Visibility
115.8mi
UNLIMITED
120 mi0 mi−24h−18h−12h−6hnow
Earth · GOES-19 ABI
Full Disk · Visible · GeoColor
GOES-19 full disk Visible · GeoColor
True-color daytime, blue/IR sandwich at night
21:51 UTC · Baltimore, MD · NOAA NESDIS / STAR · up to 10848 px
Continental US · GOES-19 ABI
CONUS Sector · Visible · GeoColor
GOES-19 CONUS Visible · GeoColor
Daytime true-color, blue-light/IR sandwich at night
21:51 UTC · Baltimore, MD · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Baltimore, MD
Satellite · infrared · animated
Baltimore, MD
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Baltimore, MD
Almanac · Saturday, July 4
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
5:14 AM
Sunrise
1:45 AM
Daylight
14h 51m
Sunset
4:36 PM
Civil dusk
9:09 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
Baltimore, MD
The moon
Waning Gibbous
78% illuminated
Moonrise
10:58 PM
Moonset
10:10 AM
In sign
♓︎ Pisces
Baltimore, MD
Microseason
Jul 1–5

Cicadas claim the afternoon

plant
Jan 151% of the yearDec 31

Read this microseason across nine climate regions →

Baltimore at a glance

  • Today vs. normal: 29°F above the seasonal normal for this latitude
  • Last frost: April 12 (climatological average for this latitude)
  • Microseason: Jul 1–5
  • Planting window: Harvest early potatoes. Begin drying onions on the surface.

ZIP codes: 21201, 21202, 21205, 21206, 21209, 21210, 21211, 21212 +17 more

16-Day Forecast — Baltimore

  1. Sat103°81°22%
  2. Sun95°75°49%
  3. Mon83°74°78%
  4. Tue90°73°78%
  5. Wed79°68°34%
  6. Thu92°70°12%
  7. Fri93°75°42%
  8. Sat91°73°34%
  9. Sun83°72°24%
  10. Mon80°72°17%
  11. Tue88°69°17%
  12. Wed92°72°37%
  13. Thu94°75°45%
  14. Fri93°76°46%
  15. Sat93°74°40%
  16. Sun92°76°46%

Forecast data from Open-Meteo (CC BY 4.0).

Live wind & temperature near Baltimore

Right now in the garden

Peak growing season

As of July 4, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.

SPC Convective Outlook

Storm Prediction Center — Baltimore

SPC has placed Baltimore in the Enhanced Risk category for severe thunderstorms today.

  • TODAYENHEnhanced Risk
  • TOMORROWSLGTSlight Risk
  • DAY 3TSTMGeneral Thunderstorms

Numerous severe storms likely. Tornadoes, large hail, and damaging wind gusts possible across the area. Track NWS warnings if storms develop.

Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.

January 1–5: The year turns in silence.January 6–10: Ice thickens on still water.January 11–15: Shortest shadows lengthen.January 16–20: Pheasants begin to call.January 21–25: Springs begin to thaw.January 26–31: Chickadees announce dawn.February 1–5: East wind softens the frost.February 6–10: Sap begins to rise.February 11–15: First snowdrops appear.February 16–20: Red-winged blackbirds return.February 21–25: Rain begins to replace snow.February 26–28: Skunk cabbage pushes through ice.March 1–5: Ice withdraws from the reservoir.March 6–10: Crocuses open to weak sun.March 11–15: Peepers call from the marsh.March 16–20: Woodcocks spiral at dusk.March 21–25: Equinox — light overtakes dark.March 26–31: Forsythia opens along the fences.April 1–5: Cherry blossoms drift like snow.April 6–10: Warblers appear in the understory.April 11–15: Magnolias bloom and fall in a day.April 16–20: Dogwoods float above the forest.April 21–25: Lilacs perfume the evening.April 26–30: Last frost releases the garden.May 1–5: Warblers flood the Ramble.May 6–10: Tulip poplars light their candles.May 11–15: Shad run up the rivers.May 16–20: Roses open along the stoops.May 21–25: Firefly scouts appear at dusk.May 26–31: Strawberries ripen in the sun.June 1–5: Fireflies rise from the lawn.June 6–10: Elderflowers open in hedgerows.June 11–15: Solstice approaches — longest light.June 16–20: Honeysuckle sweetens the night.June 21–25: Solstice — the sun stands still.June 26–30: Lightning bugs drift through oaks.July 1–5: Cicadas claim the afternoon.July 6–10: Queen Anne's lace lines the roads.July 11–15: Thunder builds each afternoon.July 16–20: Corn reaches for the tassels.July 21–25: Dog days settle in the haze.July 26–31: Katydids begin their chorus.August 1–5: Night falls a minute earlier.August 6–10: Sunflowers face the morning.August 11–15: Goldenrod begins to bloom.August 16–20: Crickets pulse through warm nights.August 21–25: First cool morning surprises.August 26–31: Monarchs stage for flight.September 1–5: School buses reappear.September 6–10: Asters purple the roadsides.September 11–15: Hawk migration over the Hudson.September 16–20: Equinox — dark overtakes light.September 21–25: Apples hang heavy on the branch.September 26–30: Geese begin to chevron south.October 1–5: Witch hazel blooms as others fade.October 6–10: Maples begin to blaze.October 11–15: Frost paints the garden black.October 16–20: Oaks turn bronze and russet.October 21–25: Leaves rattle down the gutters.October 26–31: Clocks fall back — dusk at five.November 1–5: Ginkgos drop overnight.November 6–10: Last leaves cling stubbornly.November 11–15: Juncos arrive from the north.November 16–20: Bare branches reveal the sky.November 21–25: First flurries dust the rooftops.November 26–30: Woodsmoke curls through the block.December 1–5: Darkness settles before dinner.December 6–10: Holly and winterberry persist.December 11–15: Shortest day approaches.December 16–20: Ice begins to form at the edges.December 21–25: Solstice — the sun begins return.December 26–31: The year turns in silence.🌱February 14 — First skunk-cabbage spathes thaw their way up☀️March 20 — Spring equinox — day and night balance🌸April 5 — Cherry blossoms peak in the parks🐦May 10 — Warbler migration peaks along the coast✨May 25 — First fireflies scout the meadows at dusk🌞June 21 — Summer solstice — longest day🦗July 25 — Peak cicada chorus in the afternoons🌊August 18 — Warmest sea-surface temperatures of the year🍂September 22 — Autumn equinox — the slow turn❄️October 25 — First widespread frost in the suburbs🍁November 10 — Peak leaf color across the Hudson Valley🌙December 21 — Winter solstice — longest night

Microseason · July 1–5

Cicadas claim the afternoon

Annual cicada buzz begins, peaking in the heat of the day.

Day 185 of 365 · Wedge 37 of 72

The solar year drawn as a wheel of 72 five-day windows. Each wedge is one microseason; the four colored arcs mark winter, spring, summer, and autumn; the small icons sit at notable phenological events. The crimson pointer creeps clockwise as the year turns.

Planting calendar

MonthPlantHarvest
January——
February——
March——
Aprillettuce, peas, spinach, radishes—
Maylettuce, peas, spinach, radishes, tomatoes, peppers, beans, squashlettuce, peas, radishes
Junetomatoes, peppers, beans, squashlettuce, peas, radishes
Julytomatoes, peppers, beans, squashtomatoes, beans, summer squash
August—tomatoes, beans, summer squash
Septemberfall brassicas, garlic (overwinter), carrotstomatoes, beans, summer squash
Octoberfall brassicas, garlic (overwinter), carrotswinter squash, tomatoes (last)
November——
December——

A year in weather

Baltimore peaks at about 78°F in July and bottoms near 32°F in January; December brings the heaviest rain (4.5 inches) and October the least (3.1 inches).

MonthMean tempPrecipRainy days
January32°3.8″14
February35°3.2″14
March43°3.8″16
April54°4.0″17
May62°3.8″17
June72°4.0″17
July78°3.2″16
August76°4.4″17
September70°3.9″14
October59°3.1″12
November46°4.0″14
December37°4.5″15

Regional context

Baltimore's climate, from NOAA NCEI 1991-2020 station normals, pairs 32°F Januarys with 78°F Julys — a 46°F swing. About 45.6 inches of precipitation falls over roughly 184 days a year.

No season owns Baltimore's rain: December reaches 4.5 inches across 14.9 days and October keeps 3.1 inches on 11.9, an even spread through Baltimore's year. That lines Baltimore up with places like Baltimore Highlands, MD, Lansdowne, MD and Rosedale, MD, fed by overlapping storm tracks.

Baltimore's growing window opens around mid-April, once Baltimore's overnight lows stop freezing — sow peas, lettuce, spinach, and radishes. Warm-soil crops in Baltimore wait about two weeks past Baltimore's last frost, once the soil warms. Baltimore's window closes around mid-November as overnight lows return below freezing. Within Baltimore, cold-air pooling chills low spots by 5-10°F, shifting Baltimore's local frost dates.

Similar climates: Baltimore Highlands, MD, Lansdowne, MD, Rosedale, MD, Arbutus, MD, Brooklyn Park, MD.

Naturalist notes

Late May brings the return of Baltimore orioles to the region, their orange and black plumage appearing in backyard trees as they build hanging nests.

Dogwood trees typically reach full bloom across Baltimore in mid-April, their white and pink flowers opening just as the last frost threat passes.

Frequently asked

When does it freeze in Baltimore?
Frost typically leaves Baltimore by mid-April and returns to Baltimore near mid-November.
What is the rainy season in Baltimore?
Rainfall in Baltimore peaks in December near 4.5 inches, out of about 46 inches annually.
What is the warmest month in Baltimore?
July is Baltimore's warmest month, averaging about 78°F.
What is the coldest month in Baltimore?
Baltimore bottoms out in January, with a mean near 32°F.
When can I start a vegetable garden in Baltimore?
Time tomatoes in Baltimore for two weeks after mid-April; peas and greens start at Baltimore's frost line.
How many rainy days does Baltimore get?
Baltimore records around 184 days of measurable precipitation annually.
What hardiness zone is Baltimore?
Baltimore's USDA zone comes from its January mean (32°F); enter the ZIP on the USDA lookup for the number.
What is the 10-day forecast for Baltimore?
Baltimore's extended outlook — daily high and low temperatures and precipitation chances for each upcoming day — is in the daily forecast above.
Will it rain this week in Baltimore?
See this week's day-by-day rain chances for Baltimore in the daily forecast above, and the next 24 hours in the hourly chart.
What is the weather like right now in Baltimore?
Current conditions for Baltimore and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
How often is the Baltimore forecast updated?
The Baltimore forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
When are sunrise and sunset in Baltimore?
Today's sunrise and sunset times for Baltimore are in the Almanac section above, along with civil dawn, civil dusk, and day length. Day length is longest near the summer solstice and shortest near the winter solstice.
How accurate is the weather forecast for Baltimore?
The next few days in Baltimore's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.

Climate

Baltimore's warm-summer humid continental climate in Maryland pairs 32°F Januarys with 78°F Julys, 46°F apart across the seasons.

Across the year, Baltimore collects about 46 inches of precipitation over roughly 184 days with measurable rain or snow.

At 39.3°N, Baltimore's 46°F summer-to-winter swing sets when Baltimore's gardens wake and when frost returns.

All cities in Maryland →

ZIP codes in Baltimore

  • 21218
  • 21211
  • 21210
  • 21213
  • 21212
  • 21215
  • 21214
  • 21217
  • 21216
  • 21233
  • 21231
  • 21230
  • 21239
  • 21251
  • 21209
  • 21202
  • 21206
  • 21207
  • 21205
  • 21287
  • 21223
  • 21226
  • 21201
  • 21224
  • 21225
  • 21229
  • 21203
  • 21263
  • 21264
  • 21270
  • 21273
  • 21275
  • 21278
  • 21279
  • 21281
  • 21290
  • 21297
  • 21298

Climate normals from the Open-Meteo Climate API. Köppen approximation from NOAA NCEI U.S. Climate Regions. See methodology for data sources, editorial rules, and corrections. Maintainer: Brian Tighe.