Current forecastStart with the hourly forecastCheck when rain, wind, and temperature changes overlap your plans.
Open→Weather guidance for your areaPlan with the complete forecast
Safety guides Use current official weather information for Philadelphia, Pennsylvania 19121 before making weather-sensitive plans.
Live weatherCheck live radar before leavingUse radar with the forecast to see how precipitation is moving.
Open→Safety guideReview official safety guidancePrepare for storms, flooding, heat, cold, and other hazards.
Open→Healthy weatherInclude air quality in outdoor plansUse official EPA information when planning time outside.
Open→Weather status
No active NWS alerts found for Philadelphia, Pennsylvania 19121
Conditions can change quickly. Keep Wireless Emergency Alerts enabled and continue to monitor official information.
Official NOAA / NWSWSR-88D DopplerUpdates every 5 minutes
Live Doppler radar
Animated Multi-Radar/Multi-Sensor reflectivity from the National Weather Service’s network of Doppler radars. Search a U.S. city, ZIP code, or street address to center the map on local weather, then zoom to neighborhood street detail.
Live radar is ready when you need it.
The interactive map stays off until opened to keep forecasts fast.
After loading, MyUSA.us shows the exact Doppler frame time, refresh controls, and an official NWS fallback if the map is unavailable.Doppler radar and warnings: NOAA/National Weather Service · Map: OpenFreeMap, OpenMapTiles and OpenStreetMap contributors. Radar can be delayed briefly during service updates.
MyUSA.us is not affiliated with or endorsed by NOAA or the National Weather Service. For life-threatening weather, follow official NWS alerts and local authorities.
What’s next
Hourly forecast
Check the latest hourly conditions, seven-day outlook, rain timing, wind, sunrise and sunset for Philadelphia, Pennsylvania 19121. Forecasts and alerts update from NOAA and the National Weather Service.
80°Isolated Showers And Thunderstorms15% rain79°Isolated Showers And Thunderstorms15% rain73°Isolated Showers And Thunderstorms15% rain
72°Clear10% rain
71°Mostly Clear2% rain70°Clear0% rain68°Clear0% rain67°Clear0% rainNext 24 hours
Rain Timeline
No meaningful precipitation is expected in the official hourly forecast.
15%Thunderstorms
15%Thunderstorms
15%Thunderstorms
10%None
2%None
0%None
0%None
0%None
0%None
0%None
0%None
0%None
0%None
0%None
0%None
0%None
1%None
1%None
1%None
3%None
1%None
1%None
1%None
2%None
Official NWS outlook
7-Day Forecast
Today
80°63°
Isolated Showers And Thunderstorms then Mostly Clear
- Precipitation
- 15%
- Wind
- W 0 to 10 mph
- Sunrise
- 6:21 AM
- Sunset
- 7:48 PM
Mon
81°63°
Sunny
- Precipitation
- 3%
- Wind
- SW 0 to 10 mph
- Sunrise
- 6:22 AM
- Sunset
- 7:46 PM
Tue
83°65°
Sunny
- Precipitation
- 0%
- Wind
- W 5 to 10 mph
- Sunrise
- 6:23 AM
- Sunset
- 7:45 PM
Wed
86°69°
Sunny
- Precipitation
- 34%
- Wind
- W 0 to 5 mph
- Sunrise
- 6:24 AM
- Sunset
- 7:43 PM
Thu
86°70°
Showers And Thunderstorms Likely
- Precipitation
- 64%
- Wind
- S 5 to 10 mph
- Sunrise
- 6:25 AM
- Sunset
- 7:42 PM
Fri
87°69°
Chance Showers And Thunderstorms
- Precipitation
- 31%
- Wind
- SW 0 to 5 mph
- Sunrise
- 6:26 AM
- Sunset
- 7:40 PM
Sat
85°67°
Sunny
- Precipitation
- 8%
- Wind
- NW 5 mph
- Sunrise
- 6:27 AM
- Sunset
- 7:39 PM
Forecasts, icons, precipitation, wind, and alerts are from the National Weather Service. Sunrise and sunset are calculated locally for the selected coordinates.
Weather for a healthier day
Healthy Weather
Real Feel83°F
Good conditions for walking
Conditions look reasonable, but stay alert for quick weather changes.
WindSW13 mph
Best walk timeBetter weather window: 11 PM–1 AM
Walking: 0% average rain chance, near 69°F, with winds near 5 mph.
Official EPA AirNowLocal air qualityPhiladelphia, Pennsylvania 19121View AQI +
More weather details
Wind gusts18mph
Rain now15%next hour
Humidity51%current
UV indexCheckingEPA forecast
Wind impact: Noticeable breeze with generally minor outdoor impact.
“Better weather window” is planning guidance based on official NWS data—not a promise of safe conditions. Review active alerts and radar before leaving.
Storm & DetailsGusts, pressure, visibility and official risk outlooksView details +
Wind gust18 mph
Pressure29.83 in
Visibility10.0 mi
Peak rain chance15%
Dew point63°F
Active alertsNone
Official risk outlooks
These national tools add expert storm, heavy-rain and flooding context to your local forecast.
Loading nearby traffic cameras…
Official tropical weather
Hurricane center
NOAA National Hurricane Center updates, outlooks, and storm resources in one place.
NOAA / NHC Atlantic
Hurricane center
Official Atlantic, Caribbean, and Gulf updatesSimple, useful help
Weather safety guides
Quick answers for heat, storms, flooding and hurricane preparation—kept separate so your main weather page stays clean.