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

Garrett County Airport (K2G4)

Lat: 39.58°NLon: 79.34°WElev: 2933ft.

Fair

70°F

21°C

Humidity 69%
Wind Speed Calm
Barometer 30.06 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 31 Jul 8:15 pm EDT
Extended Forecast for

Grantsville MD

  • Tonight

    Tonight: Mostly cloudy, with a low around 59. Calm wind.

    Low: 59 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 80. South wind 3 to 7 mph.

    High: 80 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A chance of showers after 4am. Mostly cloudy, with a low around 64. Southeast wind 6 to 8 mph. Chance of precipitation is 30%.

    Low: 64 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 8am. High near 75. Southeast wind 8 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 75 °F

    Showers

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm before 2am, then a slight chance of showers. Mostly cloudy, with a low around 64. Southeast wind 3 to 8 mph. Chance of precipitation is 60%.

    Low: 64 °F

    Showers
    Likely

  • Monday

    Monday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 77. Chance of precipitation is 60%.

    High: 77 °F

    Showers
    Likely

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 62. Chance of precipitation is 60%.

    Low: 62 °F

    Showers
    Likely then
    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers and thunderstorms between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 77. Chance of precipitation is 70%.

    High: 77 °F

    Chance
    Showers then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.

    Low: 63 °F

    Showers
    Likely then
    Slight Chance
    T-storms

Detailed Forecast

Tonight
Mostly cloudy, with a low around 59. Calm wind.
Saturday
Mostly cloudy, with a high near 80. South wind 3 to 7 mph.
Saturday Night
A chance of showers after 4am. Mostly cloudy, with a low around 64. Southeast wind 6 to 8 mph. Chance of precipitation is 30%.
Sunday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 8am. High near 75. Southeast wind 8 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Showers likely and possibly a thunderstorm before 2am, then a slight chance of showers. Mostly cloudy, with a low around 64. Southeast wind 3 to 8 mph. Chance of precipitation is 60%.
Monday
A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 77. Chance of precipitation is 60%.
Monday Night
Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 62. Chance of precipitation is 60%.
Tuesday
A chance of showers and thunderstorms between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 77. Chance of precipitation is 70%.
Tuesday Night
Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.
Wednesday
Showers likely and possibly a thunderstorm, mainly after 2pm. Partly sunny, with a high near 78. Chance of precipitation is 60%.
Wednesday Night
Showers and thunderstorms likely. Partly cloudy, with a low around 65. Chance of precipitation is 60%.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 79. Chance of precipitation is 40%.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 65. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 80. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
Grantsville MD
 39.7°N 79.17°W (Elev. 2201 ft)
Last Update:
7:53 pm EDT Jul 31, 2026
Forecast Valid:
8pm EDT Jul 31, 2026-6pm EDT Aug 7, 2026
 
Forecast Discussion
 
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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