National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heat Builds in the West; Extremely Critical Fire Weather in the Northwest

A heat wave over the Southwest will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Critical to extremely critical fire weather conditions are forecast from the Northwest and the northern Great Basin this weekend. Particularly Dangerous Situation Red Flag Warnings have been issued. Read More >

Current conditions at

Baltimore, Baltimore-Washington International Airport (KBWI)

Lat: 39.17°NLon: 76.68°WElev: 135ft.

Overcast

86°F

30°C

Humidity 46%
Wind Speed SE 9 G 17 mph
Barometer 29.88 in (1011.8 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 1 Aug 4:54 pm EDT
Extended Forecast for

Severn MD

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 89. South wind around 11 mph.

    High: 89 °F

    Mostly Cloudy

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 11pm. Mostly cloudy, with a low around 73. South wind 7 to 9 mph. Chance of precipitation is 20%.

    Low: 73 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Sunday

    Sunday: A chance of showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 85. Southeast wind 6 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 85 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers and thunderstorms before 3am, then showers likely and possibly a thunderstorm between 3am and 5am, then showers likely after 5am. Patchy fog between 11pm and 1am. Low around 72. South wind 5 to 7 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 72 °F

    Showers and
    Patchy Fog

  • Monday

    Monday: A chance of showers before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 86. South wind around 8 mph. Chance of precipitation is 80%.

    High: 86 °F

    Chance
    Showers then
    Showers

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Low around 70. Chance of precipitation is 80%.

    Low: 70 °F

    Showers then
    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 86. Chance of precipitation is 40%.

    High: 86 °F

    Partly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 71. Chance of precipitation is 30%.

    Low: 71 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 87. Chance of precipitation is 40%.

    High: 87 °F

    Slight Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 89. South wind around 11 mph.
Tonight
A slight chance of showers and thunderstorms before 11pm. Mostly cloudy, with a low around 73. South wind 7 to 9 mph. Chance of precipitation is 20%.
Sunday
A chance of showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 85. Southeast wind 6 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Showers and thunderstorms before 3am, then showers likely and possibly a thunderstorm between 3am and 5am, then showers likely after 5am. Patchy fog between 11pm and 1am. Low around 72. South wind 5 to 7 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Monday
A chance of showers before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 86. South wind around 8 mph. Chance of precipitation is 80%.
Monday Night
Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Low around 70. Chance of precipitation is 80%.
Tuesday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 86. Chance of precipitation is 40%.
Tuesday Night
A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 71. Chance of precipitation is 30%.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 87. Chance of precipitation is 40%.
Wednesday Night
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 72. Chance of precipitation is 30%.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 89. Chance of precipitation is 30%.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 73. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 89. Chance of precipitation is 40%.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 73. Chance of precipitation is 30%.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 90.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Severn MD
 39.14°N 76.66°W (Elev. 131 ft)
Last Update:
5:02 pm EDT Aug 1, 2026
Forecast Valid:
5pm EDT Aug 1, 2026-6pm EDT Aug 8, 2026
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation