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Severe Thunderstorms and Heavy Rain in Upper Midwest

A slow moving frontal boundary from the central Pains to the Upper Midwest will bring a potential for severe thunderstorms and heavy rain. Rain amounts of 1-3 inches, with locally heavier amounts can be expected. The threat of severe weather moves into the Ohio Valley and Northeast on Tuesday. Monsoon moisture continues to bring the threat of flash flooding to the Southwest and southern Rockies. Read More >

Hazardous Weather Conditions

Current conditions at

Philadelphia, Philadelphia International Airport (KPHL)

Lat: 39.87°NLon: 75.23°WElev: 7ft.

Mostly Cloudy

69°F

21°C

Humidity 84%
Wind Speed Calm
Barometer 30.21 in (1022.8 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 21 Aug 5:54 am EDT
Extended Forecast for

Swarthmore PA

  • Today

    Today: Mostly sunny, with a high near 87. Calm wind becoming south 5 to 8 mph in the afternoon.

    Mostly Sunny

    High: 87 °F

  • Tonight

    Tonight: A chance of showers and thunderstorms, mainly between 10pm and 11pm. Some of the storms could produce small hail, gusty winds, and heavy rain.  Mostly cloudy, with a low around 74. South wind 5 to 8 mph.  Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Heavy Rain

    Low: 74 °F

  • Tuesday

    Tuesday: Mostly sunny, with a high near 92. Southwest wind 6 to 14 mph.

    Mostly Sunny

    High: 92 °F

  • Tuesday
    Night

    Tuesday Night: A chance of showers and thunderstorms, mainly after midnight.  Mostly cloudy, with a low around 75. Southwest wind 7 to 13 mph.  Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Slight Chance
    T-storms then
    Chance
    Showers

    Low: 75 °F

  • Wednesday

    Wednesday: A slight chance of showers before noon.  Partly sunny, with a high near 84. Northwest wind around 7 mph.  Chance of precipitation is 20%.

    Slight Chance
    Showers then
    Mostly Sunny

    High: 84 °F

  • Wednesday
    Night

    Wednesday Night: Partly cloudy, with a low around 64.

    Partly Cloudy

    Low: 64 °F

  • Thursday

    Thursday: Mostly sunny, with a high near 80.

    Mostly Sunny

    High: 80 °F

  • Thursday
    Night

    Thursday Night: Mostly clear, with a low around 61.

    Mostly Clear

    Low: 61 °F

  • Friday

    Friday: Sunny, with a high near 79.

    Sunny

    High: 79 °F

Detailed Forecast

Today
Mostly sunny, with a high near 87. Calm wind becoming south 5 to 8 mph in the afternoon.
Tonight
A chance of showers and thunderstorms, mainly between 10pm and 11pm. Some of the storms could produce small hail, gusty winds, and heavy rain. Mostly cloudy, with a low around 74. South wind 5 to 8 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
Mostly sunny, with a high near 92. Southwest wind 6 to 14 mph.
Tuesday Night
A chance of showers and thunderstorms, mainly after midnight. Mostly cloudy, with a low around 75. Southwest wind 7 to 13 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
A slight chance of showers before noon. Partly sunny, with a high near 84. Northwest wind around 7 mph. Chance of precipitation is 20%.
Wednesday Night
Partly cloudy, with a low around 64.
Thursday
Mostly sunny, with a high near 80.
Thursday Night
Mostly clear, with a low around 61.
Friday
Sunny, with a high near 79.
Friday Night
Mostly clear, with a low around 60.
Saturday
Sunny, with a high near 79.
Saturday Night
Mostly clear, with a low around 61.
Sunday
Mostly sunny, with a high near 79.
Click Map For Forecast
Point Forecast:
Swarthmore PA
 39.91°N 75.34°W (Elev. 197 ft)
5:58 am EDT Aug 21, 2017
6am EDT Aug 21, 2017-6pm EDT Aug 27, 2017
 
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