Areas of Severe Thunderstorms, Excessive Rainfall, and Extreme Heat Tuesday

In the Northern Plains into the Upper Great Lakes and Mid-Atlantic, heavy to excessive rain may bring flash and urban flooding Tuesday. Severe thunderstorms producing damaging winds are most likely over parts of the Dakotas into Minnesota Tuesday afternoon into the overnight, with other isolated storms producing hail or wind over the northern High Plains. Extreme heat returns to the southwest U.S. Read More >

Current conditions at

Philadelphia, Philadelphia International Airport (KPHL)

Lat: 39.87°NLon: 75.23°WElev: 7ft.

Fog/Mist

70°F

21°C

Humidity 90%
Wind Speed NE 9 mph
Barometer 30.00 in (1015.7 mb)
Dewpoint 67°F (19°C)
Visibility 6.00 mi
Last update 7 Jul 4:54 am EDT
Extended Forecast for

Merion Station PA

  • Overnight

    Overnight: A slight chance of showers.  Patchy fog.  Otherwise, cloudy, with a low around 67. Northeast wind around 5 mph.  Chance of precipitation is 20%.

    Low: 67 °F

    Slight Chance
    Showers and
    Patchy Fog

  • Tuesday

    Tuesday: A slight chance of showers before 10am.  Patchy fog between 10am and 11am.  Otherwise, mostly cloudy, with a high near 77. Northeast wind around 5 mph.  Chance of precipitation is 20%.

    High: 77 °F

    Slight Chance
    Showers and
    Patchy Fog
    then Mostly
    Cloudy

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and midnight.  Mostly cloudy, with a low around 65. Northeast wind around 5 mph.  Chance of precipitation is 20%.

    Low: 65 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 82. Northeast wind around 5 mph.

    High: 82 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 66. Calm wind becoming south around 5 mph.

    Low: 66 °F

    Partly Cloudy

  • Thursday

    Thursday: A chance of showers, then showers and possibly a thunderstorm after 2pm.  High near 84. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 84 °F

    Chance
    Showers then
    Showers

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm before 11pm, then showers likely between 11pm and 2am.  Low around 70. Chance of precipitation is 80%.

    Low: 70 °F

    Showers

  • Friday

    Friday: A chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 89. Chance of precipitation is 40%.

    High: 89 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am.  Mostly cloudy, with a low around 70. Chance of precipitation is 40%.

    Low: 70 °F

    Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

Overnight
A slight chance of showers. Patchy fog. Otherwise, cloudy, with a low around 67. Northeast wind around 5 mph. Chance of precipitation is 20%.
Tuesday
A slight chance of showers before 10am. Patchy fog between 10am and 11am. Otherwise, mostly cloudy, with a high near 77. Northeast wind around 5 mph. Chance of precipitation is 20%.
Tuesday Night
A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and midnight. Mostly cloudy, with a low around 65. Northeast wind around 5 mph. Chance of precipitation is 20%.
Wednesday
Mostly sunny, with a high near 82. Northeast wind around 5 mph.
Wednesday Night
Partly cloudy, with a low around 66. Calm wind becoming south around 5 mph.
Thursday
A chance of showers, then showers and possibly a thunderstorm after 2pm. High near 84. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers and possibly a thunderstorm before 11pm, then showers likely between 11pm and 2am. Low around 70. Chance of precipitation is 80%.
Friday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 89. Chance of precipitation is 40%.
Friday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 70. Chance of precipitation is 40%.
Saturday
Partly sunny, with a high near 86.
Saturday Night
Partly cloudy, with a low around 67.
Sunday
A chance of showers. Mostly sunny, with a high near 85. Chance of precipitation is 30%.
Sunday Night
A chance of showers. Partly cloudy, with a low around 67. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 87.
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ABOUT THIS FORECAST

 
Point Forecast:
Merion Station PA
 39.99°N 75.24°W (Elev. 200 ft)
4:08 am EDT Jul 7, 2026
5am EDT Jul 7, 2026-6pm EDT Jul 13, 2026
 
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Additional Resources

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