Washington, Pennsylvania Weather
Cicadas claim the afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Washington weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Heavy Rain64%1.2″92°68°—
- SundayJul 5Light Drizzle39%0.02″90°68°-2°
- MondayJul 6Thunderstorm82%—83°69°-7°
- TuesdayJul 7Thunderstorm54%—77°66°-6°
- WednesdayJul 8Light Drizzle15%—81°65°+4°
- ThursdayJul 9Light Drizzle37%—84°63°+3°
- FridayJul 10Light Drizzle69%0.02″75°68°-9°
AQI 52 (Moderate), driven by PM2.5. AQI down 9 over the last 6 hours (gradual decline). PM scrubbed by 2 hours of recent rain — PM2.5 down to 8.5 µg/m³, PM10 to 8.7 µg/m³.
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 37. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
- Present
- AQI 37
- UV peak
- 0.0 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 4
PM × Wind × Precip
PM scrubbed by 2 hours of recent rain — PM2.5 down to 8.5 µg/m³, PM10 to 8.7 µg/m³.
- PM2.5/PM10
- 0.98
- Wind
- calm
- 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).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:39 PM
- Moonset
- 11:31 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Washington at a glance
- Today vs. normal: 73°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
16-Day Forecast — Washington
- Sat92°68°64%
- Sun90°69°39%
- Mon83°69°82%
- Tue77°66°54%
- Wed81°65°15%
- Thu84°63°37%
- Fri75°68°69%
- Sat78°62°51%
- Sun78°54°25%
- Mon79°55°26%
- Tue80°59°18%
- Wed80°61°37%
- Thu78°55°30%
- Fri87°60°40%
- Sat87°66°54%
- Sun76°65°45%
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 — Washington
SPC has placed Washington in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWMRGLMarginal Risk
- 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.
ZIP codes in Washington
- 15301