Washington, Pennsylvania Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Washington weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Light Drizzle25%0.01″95°69°—
- SundayJul 5Light Showers78%0.07″91°71°-4°
- MondayJul 6Thunderstorm78%0.03″79°65°-12°
- TuesdayJul 7Foggy32%—77°61°-2°
- WednesdayJul 8Overcast13%—82°59°+5°
- ThursdayJul 9Light Drizzle51%—83°63°+1°
- FridayJul 10Light Drizzle54%—82°63°-1°
AQI 60 (Moderate), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 25.4 µg/m³ (AQI 81) with a 0.99 fine-to-coarse ratio and 2 mph wind — combustion smoke trapped in calm air, not road dust.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
PM × Wind × Precip
PM2.5 at 25.4 µg/m³ (AQI 81) with a 0.99 fine-to-coarse ratio and 2 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.99
- 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).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:15 PM
- Moonset
- 10:24 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Washington at a glance
- Today vs. normal: 71°F — typical for the season
- Last frost: April 17 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 15301
15-Day Forecast — Washington
- Sat95°69°25%
- Sun91°71°78%
- Mon79°65°78%
- Tue77°61°32%
- Wed82°59°13%
- Thu83°63°51%
- Fri82°63°54%
- Sat80°62°42%
- Sun79°63°34%
- Mon81°58°17%
- Tue85°63°17%
- Wed71°58°23%
- Thu79°55°35%
- Fri87°59°52%
- Sat78°64°45%
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 — Washington
SPC has placed Washington in the Slight Risk category for severe thunderstorms today.
- TODAYSLGTSlight Risk
- TOMORROWMRGLMarginal 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.
ZIP codes in Washington
- 15301