Dangerous Heat in the Southwest; Severe Thunderstorms and Heavy Rain in the Northeast and Mid-Atlantic

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week. Strong to severe thunderstorms may produce damaging wind, hail, a tornado or two, heavy rain and flash flooding across parts of the Mid-Atlantic and Northeast. Heavy rainfall threat continues across the Gulf Coast. Read More >

Current conditions at

Baltimore, Baltimore-Washington International Airport (KBWI)

Lat: 39.17°NLon: 76.68°WElev: 135ft.

Thunderstorm

87°F

31°C

Humidity 55%
Wind Speed S 10 G 22 mph
Barometer 29.92 in (1013.1 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index91°F (33°C)
Last update 27 Aug 3:54 pm EDT
Extended Forecast for

Severn MD

Severe T-storm Watch until August 27, 10:00pm
Click here for hazard details and duration
Severe T-storm Watch
  •  
    Severe T-storm Watch until August 27, 10:00pm

    NOW until 10:00pm Thu

    Severe T-storm Watch

  • This Afternoon

    High: 88 °F

    Severe
    Thunderstorms

  • Tonight

    Tonight: Showers and thunderstorms likely before 2am, then isolated showers between 2am and 5am. Some of the storms could be severe.  Patchy fog after 5am.  Otherwise, mostly cloudy, with a low around 69. Southeast wind 5 to 7 mph becoming calm  after midnight.  Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 69 °F

    Severe
    Thunderstorms
    then
    Scattered
    Showers and
    Patchy Fog

  • Friday

    Friday: A slight chance of showers before 8am, then a slight chance of showers and thunderstorms after 2pm.  Patchy fog before 8am.  Otherwise, partly sunny, with a high near 86. Calm wind becoming north around 5 mph in the afternoon.  Chance of precipitation is 20%.

    High: 86 °F

    Patchy Fog
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am.  Mostly cloudy, with a low around 68. Calm wind.  Chance of precipitation is 20%.

    Low: 68 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 86. North wind around 6 mph.

    High: 86 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 69.

    Low: 69 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 72.

    Low: 72 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Scattered showers and thunderstorms. Some of the storms could be severe. Mostly cloudy, with a high near 88. South wind around 9 mph. Chance of precipitation is 50%.
Tonight
Showers and thunderstorms likely before 2am, then isolated showers between 2am and 5am. Some of the storms could be severe. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 69. Southeast wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Friday
A slight chance of showers before 8am, then a slight chance of showers and thunderstorms after 2pm. Patchy fog before 8am. Otherwise, partly sunny, with a high near 86. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 20%.
Friday Night
A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. Mostly cloudy, with a low around 68. Calm wind. Chance of precipitation is 20%.
Saturday
Mostly sunny, with a high near 86. North wind around 6 mph.
Saturday Night
Mostly clear, with a low around 69.
Sunday
Sunny, with a high near 88.
Sunday Night
Partly cloudy, with a low around 72.
Monday
Sunny, with a high near 92.
Monday Night
Partly cloudy, with a low around 74.
Tuesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 93. Chance of precipitation is 20%.
Tuesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 74. Chance of precipitation is 20%.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 92. Chance of precipitation is 30%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 74. Chance of precipitation is 40%.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 89.
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ABOUT THIS FORECAST

 
Point Forecast:
Severn MD
 39.12°N 76.7°W (Elev. 125 ft)
3:59 pm EDT Aug 27, 2026
4pm EDT Aug 27, 2026-6pm EDT Sep 3, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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