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

Overlea, Maryland Weather

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

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

Overlea, MD
Saturday, July 4 at 7:04 PM
95
°
Clear
Feels like
97°
Humidity
43%
Wind
13 mph
Sunrise
1:44 AM
Sunset
4:36 PM
Overlea, MD
Hour by hour · 24h
24-Hour ForecastOverlea, MD: 24-hour forecast. Temperatures range from 76 to 95 degrees Fahrenheit with a 32% chance of precipitation at 3 AM.
L 76°H 95°
Overlea, MD
7-day forecast
  1. Today
    Jul 4
    Rain
    22%
    0.24″
    103°79°—
  2. Sunday
    Jul 5
    Rain
    56%
    0.16″
    94°76°-9°
  3. Monday
    Jul 6
    Thunderstorm
    84%
    —
    83°72°-11°
  4. Tuesday
    Jul 7
    Thunderstorm
    81%
    0.03″
    87°71°+4°
  5. Wednesday
    Jul 8
    Heavy Drizzle
    34%
    0.07″
    78°66°-9°
  6. Thursday
    Jul 9
    Overcast
    12%
    —
    91°68°+13°
  7. Friday
    Jul 10
    Light Drizzle
    43%
    0.01″
    92°74°+1°
Overlea, MD
Next 24 hours · Hot now
HOT 90°72°86°100°6p12a6a12pnow 95°high 95°low 76°PRECIP %
Overlea, MD
Anemometer · 24h winds · from true
NESW
From · True
S
169° · backing 107°
Direction
S
169°
Sustained
13
mph
Gust
18
mph
Peak 24h
19
avg 5
Beaufort · 4 · MOD 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 5 · pk 19 @ 4:00a
01020MPHB1B2B3B4B5-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 187SUSTGUST
−24h−18h−12h−6hnow
A fresh breeze drives the s-bound air across the harbor.
Overlea, MD
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
1004.7
-0.8 mb in 3h · falling · 29.67 inHg
Now
1004.7
mb
3h
-0.8
mb
12h
-3.1
mb
24h
-2.3
mb
Regime · RAIN
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 1004–1008
9951000STORM|RAIN10051010RAIN|CHG1015CHG|FAIR-21h-18h-15h-12h-9h-6h-3h-24hNOW1008.41003.61004.7
−24h−18h−12h−6hnow
Damp, unsettled regime — wet weather lingers nearby.
Overlea, MD
Air quality
182
AQI
Unhealthy
↑+117 in 6h

AQI 182 (Unhealthy), driven by Ozone. AQI up 117 in the last 6 hours — air quality is degrading. Ozone at AQI 117. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.

LIMIT OUTDOORS Limit prolonged outdoor exertion. Sensitive groups should avoid outdoor exertion. Consider rescheduling outdoor activities until AQI improves.

PM 2.5Good
9.1μg/m³
PM 10Good
10μg/m³
NO₂Good
7μg/m³
OzoneDRIVERUnhealthy
148μg/m³
UV IndexLow
0.3

What's driving it

Ozone × UV × Sky

Ozone at AQI 117. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.

Present
AQI 117
UV peak
0.2 at 1 PM
Sky at peak
overcast
Projected peak
AQI 14

PM × Wind × Precip

PM scrubbed by 2 hours of recent rain — PM2.5 down to 9.1 µg/m³, PM10 to 9.5 µg/m³.

PM2.5/PM10
0.96
Wind
breezy
Recent rain
2h in last 6h
Pattern
washed out

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/m³360
Overlea, MD
Sky cover · visibility · 24h
Cloud cover
0%
CLEAR
100%0%−24h−18h−12h−6hnow
Visibility
89.5mi
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
23:04 UTC · Overlea, 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
23:04 UTC · Overlea, MD · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Overlea, MD
Satellite · infrared · animated
Overlea, MD
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Overlea, MD
Almanac · Saturday, July 4
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
5:13 AM
Sunrise
1:44 AM
Daylight
14h 52m
Sunset
4:36 PM
Civil dusk
9:09 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
Overlea, MD
The moon
Waning Gibbous
78% illuminated
Moonrise
10:58 PM
Moonset
10:10 AM
In sign
♓︎ Pisces
Overlea, MD
Microseason
Jul 1–5

Cicadas claim the afternoon

plant
Jan 151% of the yearDec 31

Read this microseason across nine climate regions →

Overlea at a glance

  • Today vs. normal: 23°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.

16-Day Forecast — Overlea

  1. Sat103°79°22%
  2. Sun94°76°56%
  3. Mon83°72°84%
  4. Tue87°71°81%
  5. Wed78°66°34%
  6. Thu91°68°12%
  7. Fri92°74°43%
  8. Sat91°72°35%
  9. Sun82°69°25%
  10. Mon77°68°17%
  11. Tue87°66°17%
  12. Wed91°68°37%
  13. Thu92°72°45%
  14. Fri93°75°46%
  15. Sat94°74°40%
  16. Sun92°75°46%

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

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 — Overlea

SPC has placed Overlea 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

Overlea 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

In Overlea, NOAA NCEI 1991-2020 normals put January near 32°F and July near 78°F — a 46°F seasonal arc — with about 45.6 inches of precipitation over 184 rainy or snowy days.

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

Overlea reaches its last hard frost near mid-April; that is the cue for peas, lettuce, spinach, and radishes. Tomatoes and peppers do best set out two weeks later in Overlea, once nights clear the mid-40s°F. The season ends by mid-November in Overlea, once hard frosts set back in. A creek-bottom lot in Overlea can lag Overlea's last frost 7-10 days behind a south slope.

Similar climates: Rossville, MD, Parkville, MD, Rosedale, MD, Carney, MD, White Marsh, MD.

Frequently asked

When does it freeze in Overlea?
Overlea's last spring frost lands near mid-April, and in Overlea the first fall frost follows around mid-November.
What is the rainy season in Overlea?
December is the wettest month in Overlea, about 4.5 inches on average; the year totals roughly 46 inches.
What is the warmest month in Overlea?
On average July tops the year in Overlea at about 78°F.
What is the coldest month in Overlea?
The coldest stretch in Overlea falls in January, around 32°F on average.
When can I start a vegetable garden in Overlea?
Hardy spring crops go in near mid-April in Overlea; tender peppers and squash wait 10–14 days.
How many rainy days does Overlea get?
Overlea records around 184 days of measurable precipitation annually.
What hardiness zone is Overlea?
Because Overlea bottoms near 32°F in January, that winter low sets Overlea's USDA zone — verify by ZIP.
What is the 10-day forecast for Overlea?
Overlea'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 Overlea?
See this week's day-by-day rain chances for Overlea in the daily forecast above, and the next 24 hours in the hourly chart.
What is the weather like right now in Overlea?
Current conditions for Overlea and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
How often is the Overlea forecast updated?
The Overlea forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
When are sunrise and sunset in Overlea?
Today's sunrise and sunset times for Overlea 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 Overlea?
The next few days in Overlea's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.

Climate

Set in a warm-summer humid continental zone, Overlea, Maryland swings from 32°F in the heart of winter to 78°F at midsummer — a 46°F arc.

Rain and snow bring Overlea roughly 46 inches a year across approximately 184 measurable-precipitation days.

Overlea sits at 39.4°N; that 46°F seasonal swing frames planting windows and frost dates across Overlea.

All cities in Maryland →

Baltimore, MD weather →

ZIP codes in Overlea

  • 21234
  • 21236
  • 21206

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.