Washington, District of Columbia Weather
Night falls a minute earlier. Day 43 of summer. Read this microseason across nine climate regions →
Washington weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayAug 2Showers43%0.24″89°75°—
- MondayAug 3Showers33%0.32″92°76°+3°
- TuesdayAug 4Overcast26%—86°72°-6°
- WednesdayAug 5Thunderstorm30%—89°74°+3°
- ThursdayAug 6Overcast31%—94°73°+5°
- FridayAug 7Showers48%0.71″100°75°+6°
- SaturdayAug 8Light Drizzle52%—97°73°-3°
AQI 49 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 9.0 µg/m³, PM10 at 11.7 µg/m³ — typical background levels with no transport signature.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 42. Overcast through the UV peak window (cloud cover ~96%) — afternoon ozone should stay flat.
- Present
- AQI 42
- UV peak
- 4.0 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 11
PM × Wind × Precip
PM2.5 at 9.0 µg/m³, PM10 at 11.7 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.77
- Wind
- light
- Recent rain
- 1h in last 6h
- Pattern
- background
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).








































Red sky at night, sailor's delight.
- Moonrise
- 9:50 PM
- Moonset
- 10:10 AM
- In sign
- ♓︎ Pisces
Night falls a minute earlier
Washington at a glance
- Today vs. normal: 18°F above the seasonal normal for this latitude
- Last frost: April 9 (climatological average for this latitude)
- Microseason: Aug 1–5
- Planting window: Sow fall peas. Start kale and collard seedlings for fall.
ZIP codes: 20001, 20002, 20003, 20004, 20005, 20006, 20007, 20008 +47 more
16-Day Forecast — Washington
- Sun89°75°50%
- Mon92°76°30%
- Tue86°72°26%
- Wed89°74°30%
- Thu94°73°31%
- Fri100°75°48%
- Sat97°73°52%
- Sun99°75°40%
- Mon98°76°25%
- Tue91°74°25%
- Wed90°73°17%
- Thu95°74°35%
- Fri98°77°42%
- Sat102°78°39%
- Sun98°76°27%
- Mon97°75°19%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Washington
Right now in the garden
Peak growing season
As of August 2, 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 — Washington
SPC has placed Washington in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
Isolated severe storms possible. Limited threat for hail or damaging wind.
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.
Sun & seasons in Washington
Washington sits in District of Columbia County, where the year’s longest day runs 14h 54m of daylight and its shortest just 9h 26m — a swing of +5h 28m between the June and December solstices. Clocks spring forward on Sunday, March 8, 2026 and fall back on Sunday, November 1, 2026.
Air quality in Washington’s county has held roughly steady since 2020; its cleanest year on record was 2020 (median AQI 44). See the full air-quality history for Washington.
Microseason · August 1–5
Night falls a minute earlier
Sunset retreats perceptibly — daylight shortening speeds up.
Day 214 of 365 · Wedge 43 of 72
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | — | — |
| February | — | — |
| March | — | — |
| April | lettuce, peas, spinach, radishes | — |
| May | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| July | tomatoes, peppers, beans, squash | tomatoes, beans, summer squash |
| August | — | tomatoes, beans, summer squash |
| September | fall brassicas, garlic (overwinter), carrots | tomatoes, beans, summer squash |
| October | fall brassicas, garlic (overwinter), carrots | winter squash, tomatoes (last) |
| November | — | — |
| December | — | — |
A year in weather
July is Washington'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.
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 32° | 3.3″ | 13 |
| February | 35° | 2.8″ | 12 |
| March | 44° | 3.4″ | 15 |
| April | 55° | 3.7″ | 17 |
| May | 63° | 3.5″ | 18 |
| June | 72° | 3.9″ | 17 |
| July | 78° | 3.2″ | 17 |
| August | 77° | 4.2″ | 18 |
| September | 70° | 3.4″ | 14 |
| October | 59° | 2.6″ | 11 |
| November | 46° | 3.6″ | 12 |
| December | 37° | 3.9″ | 14 |
Regional context
Washington swings from 32°F in January to 78°F in July (46°F) per NOAA NCEI 1991-2020 normals; precipitation in Washington runs about 41.5 inches on roughly 175 measurable days.
Washington's precipitation spreads evenly: August peaks at 4.2 inches on 17.8 wet days, while October holds 2.6 inches over 11.1 — no month dominates Washington's rain calendar. It is a balanced pattern Washington shares with nearby cities at similar latitude.
Washington reaches its last hard frost near mid-April; that is the cue for peas, lettuce, spinach, and radishes. Washington's heat-lovers — tomatoes, peppers, squash — hold off until Washington's frost risk clears, 10-14 days on. By mid-November, frost is back in Washington — protect or harvest anything tender. Washington's low ground holds frost later into spring than Washington's benches, which run 3-5 days ahead.
Naturalist notes
Cherry trees around the Tidal Basin typically reach peak bloom in early April, when daytime temperatures consistently stay above 50°F.
Red-winged blackbirds return to area wetlands by late March, their territorial calls marking the transition from winter to spring.
Frequently asked
- When does it freeze in Washington?
- In Washington, expect the last spring frost near mid-April; Washington's first autumn frost comes around mid-November.
- What is the rainy season in Washington?
- Washington sees its heaviest rain in August (around 4.2 inches), part of roughly 42 inches a year.
- What is the warmest month in Washington?
- On average July tops the year in Washington at about 78°F.
- What is the coldest month in Washington?
- The coldest stretch in Washington falls in January, around 32°F on average.
- When can I start a vegetable garden in Washington?
- Hardy spring crops go in near mid-April in Washington; tender peppers and squash wait 10–14 days.
- How many rainy days does Washington get?
- Expect roughly 175 wet days a year in Washington.
- What hardiness zone is Washington?
- Since January in Washington averages 32°F, Washington's USDA zone follows that floor — confirm it by ZIP.
- What is the 10-day forecast for Washington?
- Washington'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 Washington?
- See this week's day-by-day rain chances for Washington in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Washington?
- Current conditions for Washington and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Washington forecast updated?
- The Washington forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Washington?
- Today's sunrise and sunset times for Washington 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 Washington?
- The next few days in Washington'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 Washington, District of Columbia carries typical Januarys near 32°F and Julys around 78°F — 46°F of seasonal travel.
Washington sees close to 42 inches of precipitation annually, falling across some 175 wet days.
From 38.9°N, Washington sees a 46°F seasonal swing that governs Washington's planting and frost windows.
ZIP codes in Washington
- 20250
- 20010
- 20011
- 20012
- 20015
- 20520
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