Severe Weather Possible from the Central Plains to the Northeast; Building Heat in the West; Fire Weather Concerns for the Southwest

Severe thunderstorms are possible from the Ohio Valley to the central Plains this evening, and the threat will expand into the Mid-Atlantic and Northeast on Monday. Hazardous heat will linger across the southern U.S. and build across the West through mid-week. Hot and dry conditions will fuel fire weather concerns for Alaska through this evening and for the Four Corners region through Monday. Read More >

Current conditions at

Philadelphia, Philadelphia International Airport (KPHL)

Lat: 39.87°NLon: 75.23°WElev: 7ft.

Mostly Cloudy

85°F

29°C

Humidity 30%
Wind Speed W 10 mph
Barometer 29.89 in (1012.0 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 21 Jun 4:54 pm EDT
Extended Forecast for

Chester PASimilar City Names

  • Tonight

    Tonight: Partly cloudy, with a low around 65. West wind 5 to 10 mph becoming light and variable  in the evening.

    Low: 65 °F

    Partly Cloudy

  • Monday

    Monday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Some of the storms could produce heavy rainfall.  Mostly cloudy, with a high near 86. East wind 5 to 15 mph becoming south in the afternoon. Winds could gust as high as 25 mph.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 86 °F

    Partly Sunny
    then Heavy
    Rain

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms between 2am and 4am. Some of the storms could produce heavy rainfall.  Low around 67. South wind 5 to 10 mph becoming southwest after midnight.  Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 67 °F

    Heavy Rain

  • Tuesday

    Tuesday: A slight chance of showers between 7am and 8am, then a chance of showers and thunderstorms after 8am.  Partly sunny, with a high near 82. Northwest wind 5 to 10 mph.  Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 82 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 62. North wind around 5 mph.

    Low: 62 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 88.

    High: 88 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A chance of thunderstorms before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then showers likely and possibly a thunderstorm after 2am.  Mostly cloudy, with a low around 67. Chance of precipitation is 60%.

    Low: 67 °F

    Chance
    T-storms then
    Showers
    Likely

Detailed Forecast

Tonight
Partly cloudy, with a low around 65. West wind 5 to 10 mph becoming light and variable in the evening.
Monday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Some of the storms could produce heavy rainfall. Mostly cloudy, with a high near 86. East wind 5 to 15 mph becoming south in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
Showers and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms between 2am and 4am. Some of the storms could produce heavy rainfall. Low around 67. South wind 5 to 10 mph becoming southwest after midnight. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday
A slight chance of showers between 7am and 8am, then a chance of showers and thunderstorms after 8am. Partly sunny, with a high near 82. Northwest wind 5 to 10 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Mostly clear, with a low around 62. North wind around 5 mph.
Wednesday
Sunny, with a high near 85.
Wednesday Night
Mostly clear, with a low around 64.
Thursday
Mostly sunny, with a high near 88.
Thursday Night
A chance of thunderstorms before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.
Friday
Showers likely, with thunderstorms also possible after 2pm. Partly sunny, with a high near 87. Chance of precipitation is 60%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 88.
Saturday Night
Partly cloudy, with a low around 69.
Sunday
Mostly sunny, with a high near 90.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Chester PASimilar City Names
 39.85°N 75.38°W (Elev. 30 ft)
4:09 pm EDT Jun 21, 2026
5pm EDT Jun 21, 2026-6pm EDT Jun 28, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database