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Chevy Chase Section Three, Maryland Weather

Cicadas claim the afternoon. Day 15 of summer. Read this microseason across nine climate regions →

Chevy Chase Section Three weather forecast — hour by hour, 7-day outlook, NOAA radar

Chevy Chase Section Three, MD
Saturday, July 4 at 10:05 PM
78
°
Overcast
Feels like
78°
Humidity
66%
Wind
15 mph
Sunrise
1:48 AM
Sunset
4:37 PM
Chevy Chase Section Three, MD
Hour by hour · 24h
24-Hour ForecastChevy Chase Section Three, MD: 24-hour forecast. Temperatures range from 73 to 97 degrees Fahrenheit with a 48% chance of precipitation at 9 PM.
L 73°H 97°
Chevy Chase Section Three, MD
7-day forecast
  1. Today
    Jul 4
    Light Drizzle
    46%
    0.02″
    101°76°—
  2. Sunday
    Jul 5
    Light Drizzle
    50%
    0.01″
    97°73°-4°
  3. Monday
    Jul 6
    Showers
    80%
    0.04″
    86°74°-11°
  4. Tuesday
    Jul 7
    Thunderstorm
    80%
    —
    79°71°-7°
  5. Wednesday
    Jul 8
    Light Drizzle
    38%
    0.01″
    78°68°-1°
  6. Thursday
    Jul 9
    Overcast
    11%
    —
    95°69°+17°
  7. Friday
    Jul 10
    Light Drizzle
    43%
    —
    98°75°+3°
Chevy Chase Section Three, MD
Next 24 hours · Mild now
HOT 90°65°85°105°6p12a6a12pnow 78°high 97°low 73°PRECIP %
Chevy Chase Section Three, MD
Anemometer · 24h winds · from true
NESW
From · True
SW
223° · backing 137°
Direction
SW
223°
Sustained
15
mph
Gust
34
mph
Peak 24h
34
avg 6
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 6 · pk 34 @ 10:00p
010203040MPHB1B2B3B4B5B6B7B8-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 342SUSTGUST
−24h−18h−12h−6hnow
Sustained 15 mph with gusts pulsing to 34 — flags snap, branches bend.
Chevy Chase Section Three, MD
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
1001.8
+1.6 mb in 3h · rising · 29.58 inHg
Now
1001.8
mb
3h
+1.6
mb
12h
-1.4
mb
24h
-1.0
mb
Regime · RAIN
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 999–1003
9909951000STORM|RAIN10051010RAIN|CHG1015CHG|FAIR10201025FAIR|DRY1030-21h-18h-15h-12h-9h-6h-3h-24hNOW1003.2998.51001.8
−24h−18h−12h−6hnow
Pressure climbing out of the rain band — clearing edging in.
Chevy Chase Section Three, MD
Air quality
69
AQI
Moderate
↓-37 in 6h

AQI 69 (Moderate), driven by PM2.5. AQI down 37 over the last 6 hours — air quality is improving sharply. PM scrubbed by 2 hours of recent rain — PM2.5 down to 14.7 µg/m³, PM10 to 15.1 µg/m³.

OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.

PM 2.5DRIVERModerate
14.7μg/m³
PM 10Good
15μg/m³
NO₂Good
18μg/m³
OzoneModerate
72μg/m³
UV IndexLow
0.0

What's driving it

Ozone × UV × Sky

Ozone at AQI 34 now. With UV 0.0 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 6 around 1 PM.

Present
AQI 34
UV peak
0.0 at 1 PM
Sky at peak
partly cloudy
Projected peak
AQI 6

PM × Wind × Precip

PM scrubbed by 2 hours of recent rain — PM2.5 down to 14.7 µg/m³, PM10 to 15.1 µg/m³.

PM2.5/PM10
0.97
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 TREND50100SUNMONTUEWEDTHUFRISATSUN7-DAY PM2.5 TREND · μg/m³400
Chevy Chase Section Three, MD
Sky cover · visibility · 24h
Cloud cover
100%
OVERCAST
100%0%−24h−18h−12h−6hnow
Visibility
39.1mi
UNLIMITED
110 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
02:05 UTC · Chevy Chase Section Three, 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
02:05 UTC · Chevy Chase Section Three, MD · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Chevy Chase Section Three, MD
Satellite · infrared · animated
Chevy Chase Section Three, MD
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Chevy Chase Section Three, MD
Almanac · Saturday, July 4
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
5:17 AM
Sunrise
1:48 AM
Daylight
14h 49m
Sunset
4:37 PM
Civil dusk
9:10 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
Chevy Chase Section Three, MD
The moon
Waning Gibbous
77% illuminated
Moonrise
11:25 PM
Moonset
11:18 AM
In sign
♓︎ Pisces
Chevy Chase Section Three, MD
Microseason
Jul 1–5

Cicadas claim the afternoon

fish
Jan 151% of the yearDec 31

Read this microseason across nine climate regions →

Chevy Chase Section Three at a glance

  • Today vs. normal: 5°F above the seasonal normal for this latitude
  • Last frost: April 10 (climatological average for this latitude)
  • Microseason: Jul 1–5
  • Planting window: Harvest early potatoes. Begin drying onions on the surface.

16-Day Forecast — Chevy Chase Section Three

  1. Sat101°79°46%
  2. Sun97°75°50%
  3. Mon86°74°80%
  4. Tue79°71°80%
  5. Wed78°68°38%
  6. Thu95°69°11%
  7. Fri98°75°43%
  8. Sat85°70°38%
  9. Sun81°68°23%
  10. Mon86°64°20%
  11. Tue92°67°18%
  12. Wed91°69°22%
  13. Thu90°67°24%
  14. Fri92°72°33%
  15. Sat91°72°36%
  16. Sun88°69°48%

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

Right now in the garden

Peak growing season

As of July 5, 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 — Chevy Chase Section Three

SPC has placed Chevy Chase Section Three in the Slight Risk category for severe thunderstorms today.

  • TODAYSLGTSlight Risk
  • TOMORROWSLGTSlight Risk
  • DAY 3TSTMGeneral Thunderstorms

Scattered severe storms possible. A few tornadoes, hail, and damaging wind gusts possible.

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 186 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

July is Chevy Chase Section Three's warmest stretch (~78°F) and January its coldest (~32°F); precipitation crests in August at 4.2 inches and ebbs in October to 2.6 inches.

MonthMean tempPrecipRainy days
January32°3.3″13
February35°2.8″12
March44°3.4″15
April55°3.7″17
May63°3.5″18
June72°3.9″17
July78°3.2″17
August77°4.2″18
September70°3.4″14
October59°2.6″11
November46°3.6″12
December37°3.9″14

Frequently asked

When does it freeze in Chevy Chase Section Three?
Chevy Chase Section Three's last spring frost lands near mid-April, and in Chevy Chase Section Three the first fall frost follows around mid-November.
What is the rainy season in Chevy Chase Section Three?
Rainfall in Chevy Chase Section Three peaks in August near 4.2 inches, out of about 42 inches annually.
What is the warmest month in Chevy Chase Section Three?
Chevy Chase Section Three peaks in July, when the mean runs near 78°F.
What is the coldest month in Chevy Chase Section Three?
January is Chevy Chase Section Three's coldest month, averaging about 32°F.
When can I start a vegetable garden in Chevy Chase Section Three?
Around mid-April, start frost-hardy crops in Chevy Chase Section Three; tomatoes and basil belong a fortnight later.
How many rainy days does Chevy Chase Section Three get?
Chevy Chase Section Three averages about 175 days with measurable rain or snow each year.
What hardiness zone is Chevy Chase Section Three?
Since January in Chevy Chase Section Three averages 32°F, Chevy Chase Section Three's USDA zone follows that floor — confirm it by ZIP.
What is the 10-day forecast for Chevy Chase Section Three?
Chevy Chase Section Three'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 Chevy Chase Section Three?
See this week's day-by-day rain chances for Chevy Chase Section Three in the daily forecast above, and the next 24 hours in the hourly chart.
What is the weather like right now in Chevy Chase Section Three?
Current conditions for Chevy Chase Section Three and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
How often is the Chevy Chase Section Three forecast updated?
The Chevy Chase Section Three forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
When are sunrise and sunset in Chevy Chase Section Three?
Today's sunrise and sunset times for Chevy Chase Section Three 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 Chevy Chase Section Three?
The next few days in Chevy Chase Section Three's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.

Climate

The warm-summer humid continental climate of Chevy Chase Section Three, Maryland carries typical Januarys near 32°F and Julys around 78°F — 46°F of seasonal travel.

Yearly precipitation in Chevy Chase Section Three totals around 42 inches, spread over about 175 days of rain or snow.

Chevy Chase Section Three sits at 39.0°N; that 46°F seasonal swing frames planting windows and frost dates across Chevy Chase Section Three.

All cities in Maryland →

Bethesda, MD weather →

ZIP codes in Chevy Chase Section Three

  • 20815

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.