Tracking a Winter Storm; Unusual Early-Season Heat Wave in the Southwest

A major winter storm will organize across the Northern Plains today and then rapidly strengthen as it moves into the Great Lakes on Sunday. Heavy snow and blowing snow are likely to persist over the Great Lakes into Monday night. Dry and gusty winds will produce a critical fire risk across the central/southern Plains. An early heatwave will begin to intensify over the western U.S. into next week. Read More >

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fair

57°F

14°C

Humidity 18%
Wind Speed NW 17 G 24 mph
Barometer 30.16 in (1022.6 mb)
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Last update 14 Mar 3:56 pm EDT
Extended Forecast for

Derwood MD

  • Tonight

    Tonight: Mostly cloudy, with a low around 38. Northwest wind 5 to 7 mph becoming calm.

    Low: 38 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 58. Southeast wind 7 to 15 mph, with gusts as high as 25 mph.

    High: 58 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Showers.  Low around 52. Southeast wind 11 to 14 mph, with gusts as high as 24 mph.  Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 52 °F

    Showers

  • Monday

    Monday: Showers, with thunderstorms also possible after 11am.  High near 71. South wind 14 to 18 mph, with gusts as high as 36 mph.  Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 71 °F

    Showers

  • Monday Night

    Monday Night: Rain showers before 11pm, then snow showers, possibly mixed with rain between 11pm and 2am, then a slight chance of snow showers after 2am. Some thunder is also possible.  Low around 28. West wind 15 to 18 mph, with gusts as high as 30 mph.  Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    Low: 28 °F

    Rain/Snow

  • Tuesday

    Tuesday: Partly sunny, with a high near 37.

    High: 37 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 23.

    Low: 23 °F

    Mostly Clear

  • Wednesday

    Wednesday: Partly sunny, with a high near 40.

    High: 40 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 38. Northwest wind 5 to 7 mph becoming calm.
Sunday
Partly sunny, with a high near 58. Southeast wind 7 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Showers. Low around 52. Southeast wind 11 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Showers, with thunderstorms also possible after 11am. High near 71. South wind 14 to 18 mph, with gusts as high as 36 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Monday Night
Rain showers before 11pm, then snow showers, possibly mixed with rain between 11pm and 2am, then a slight chance of snow showers after 2am. Some thunder is also possible. Low around 28. West wind 15 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Tuesday
Partly sunny, with a high near 37.
Tuesday Night
Mostly clear, with a low around 23.
Wednesday
Partly sunny, with a high near 40.
Wednesday Night
Mostly cloudy, with a low around 30.
Thursday
Partly sunny, with a high near 53.
Thursday Night
Mostly cloudy, with a low around 36.
Friday
Mostly sunny, with a high near 59.
Friday Night
Mostly cloudy, with a low around 41.
Saturday
Partly sunny, with a high near 59.
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ABOUT THIS FORECAST

 
Point Forecast:
Derwood MD
 39.12°N 77.13°W (Elev. 348 ft)
1:53 pm EDT Mar 14, 2026
4pm EDT Mar 14, 2026-6pm EDT Mar 21, 2026
 
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Additional Resources

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