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

Areas of Dangerous Heat and Heavy Rain with Possible Flooding into this Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend with heat advisories in effect. Heavy to excessive rainfall occurring at times through Sunday could bring areas of flooding to parts of the upper Midwest, central Great Lakes, southern New England and Virginia/North Carolina tidewater region. Read More >

Current conditions at

Garrett County Airport (K2G4)

Lat: 39.58°NLon: 79.34°WElev: 2933ft.

Fog

68°F

20°C

Humidity 100%
Wind Speed Vrbl 3 mph
Barometer 30.22 in
Dewpoint 68°F (20°C)
Visibility 0.15 mi
Last update 18 Sep 3:35 am EDT
Extended Forecast for

4 Miles WNW McHenry MD

  • Overnight

    Overnight: Isolated showers. Patchy fog. Otherwise, mostly cloudy, with a low around 66. Light northwest wind. Chance of precipitation is 20%.

    Low: 66 °F

    Isolated
    Showers and
    Patchy Fog

  • Friday

    Friday: Isolated showers before 8am, then scattered showers after 3pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 75. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 30%.

    High: 75 °F

    Patchy Fog
    then
    Scattered
    Showers

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 55. Calm wind becoming southeast around 5 mph after midnight.

    Low: 55 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 73. Southeast wind 5 to 7 mph.

    High: 73 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A chance of showers after 2am. Mostly cloudy, with a low around 61. Southeast wind 5 to 7 mph. Chance of precipitation is 30%.

    Low: 61 °F

    Partly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Showers, with thunderstorms also possible after 11am. High near 75. Chance of precipitation is 90%.

    High: 75 °F

    Showers

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm. Low around 61. Chance of precipitation is 80%.

    Low: 61 °F

    Showers

  • Monday

    Monday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 69. Chance of precipitation is 60%.

    High: 69 °F

    Showers
    Likely

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 57. Chance of precipitation is 70%.

    Low: 57 °F

    Showers
    Likely

Detailed Forecast

Overnight
Isolated showers. Patchy fog. Otherwise, mostly cloudy, with a low around 66. Light northwest wind. Chance of precipitation is 20%.
Friday
Isolated showers before 8am, then scattered showers after 3pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 75. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 30%.
Friday Night
Mostly cloudy, with a low around 55. Calm wind becoming southeast around 5 mph after midnight.
Saturday
Partly sunny, with a high near 73. Southeast wind 5 to 7 mph.
Saturday Night
A chance of showers after 2am. Mostly cloudy, with a low around 61. Southeast wind 5 to 7 mph. Chance of precipitation is 30%.
Sunday
Showers, with thunderstorms also possible after 11am. High near 75. Chance of precipitation is 90%.
Sunday Night
Showers and possibly a thunderstorm. Low around 61. Chance of precipitation is 80%.
Monday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 69. Chance of precipitation is 60%.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 57. Chance of precipitation is 70%.
Tuesday
Showers likely, then showers and possibly a thunderstorm after 2pm. High near 64. Chance of precipitation is 80%.
Tuesday Night
Showers and possibly a thunderstorm. Low around 52. Chance of precipitation is 80%.
Wednesday
A chance of showers. Mostly cloudy, with a high near 60. Chance of precipitation is 50%.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 51. Chance of precipitation is 60%.
Thursday
A chance of showers. Mostly cloudy, with a high near 64. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WNW McHenry MD
 39.56°N 79.42°W (Elev. 2096 ft)
Last Update:
2:22 am EDT Sep 18, 2026
Forecast Valid:
3am EDT Sep 18, 2026-6pm EDT Sep 24, 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