Heavy Rainfall and Flooding Concerns in the Southwest; Coastal Low to Impact the East Coast

Deep tropical moisture will lead to widespread showers and thunderstorms capable of producing flash flooding through early next week over the Southwest and Four Corners. A coastal storm is expected to develop off the southeast U.S. coast tonight and is expected to strengthen and bring flooding, dangerous rip currents, gusty winds and heavy rain up much of the East Coast through early next week. Read More >

Current conditions at

USCRN SITE NEAR LEWISTOWN 42WSW (JRWM8)

Lat: 46.88472°NLon: 110.28944°WElev: 5045.0ft.

NA

60°F

16°C

Humidity 41%
Wind Speed NA NA MPH
Barometer NA
Dewpoint 36°F (2°C)
Visibility NA
Last update 10 Oct 07:00 PM MDT
Extended Forecast for

4 Miles SW Windham MT

  • Tonight

    Tonight: Mostly clear, with a low around 50. South southwest wind 11 to 17 mph, with gusts as high as 24 mph.

    Low: 50 °F

    Mostly Clear

  • Saturday

    Saturday: A chance of showers before noon, then showers likely and possibly a thunderstorm between noon and 3pm, then showers after 3pm.  High near 67. Southwest wind 8 to 11 mph becoming north in the afternoon.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 67 °F

    Chance
    Showers then
    Showers

  • Saturday Night

    Saturday Night: Rain before 2am, then rain and snow. Some thunder is also possible.  Low around 31. West northwest wind 10 to 18 mph, with gusts as high as 26 mph.  Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    Low: 31 °F

    Showers then
    Rain/Snow

  • Sunday

    Sunday: Snow, mainly before noon.  High near 38. Northwest wind 14 to 18 mph, with gusts as high as 26 mph.  Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.

    High: 38 °F

    Snow then
    Chance Snow

  • Sunday Night

    Sunday Night: Snow likely.  Mostly cloudy, with a low around 25. North wind 7 to 10 mph becoming east after midnight.  Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    Low: 25 °F

    Snow Likely

  • Columbus Day

    Columbus Day: A 40 percent chance of snow.  Mostly cloudy, with a high near 41. East southeast wind 8 to 11 mph, with gusts as high as 20 mph.  New snow accumulation of less than a half inch possible.

    High: 41 °F

    Chance Snow

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 24. East southeast wind 5 to 10 mph becoming south southwest after midnight.

    Low: 24 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 49. Light and variable wind becoming east 5 to 7 mph in the morning.

    High: 49 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of rain and snow.  Partly cloudy, with a low around 30.

    Low: 30 °F

    Slight Chance
    Rain/Snow

Detailed Forecast

Tonight
Mostly clear, with a low around 50. South southwest wind 11 to 17 mph, with gusts as high as 24 mph.
Saturday
A chance of showers before noon, then showers likely and possibly a thunderstorm between noon and 3pm, then showers after 3pm. High near 67. Southwest wind 8 to 11 mph becoming north in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Rain before 2am, then rain and snow. Some thunder is also possible. Low around 31. West northwest wind 10 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Sunday
Snow, mainly before noon. High near 38. Northwest wind 14 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.
Sunday Night
Snow likely. Mostly cloudy, with a low around 25. North wind 7 to 10 mph becoming east after midnight. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Columbus Day
A 40 percent chance of snow. Mostly cloudy, with a high near 41. East southeast wind 8 to 11 mph, with gusts as high as 20 mph. New snow accumulation of less than a half inch possible.
Monday Night
Mostly cloudy, with a low around 24. East southeast wind 5 to 10 mph becoming south southwest after midnight.
Tuesday
Mostly sunny, with a high near 49. Light and variable wind becoming east 5 to 7 mph in the morning.
Tuesday Night
A slight chance of rain and snow. Partly cloudy, with a low around 30.
Wednesday
Mostly sunny, with a high near 57.
Wednesday Night
A chance of rain and snow. Partly cloudy, with a low around 32.
Thursday
A chance of rain. Partly sunny, with a high near 54.
Thursday Night
A slight chance of rain. Partly cloudy, with a low around 34.
Friday
A slight chance of rain. Mostly sunny, with a high near 56.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Windham MT
 47.05°N 110.2°W (Elev. 4600 ft)
4:22 pm MDT Oct 10, 2025
8pm MDT Oct 10, 2025-6pm MDT Oct 17, 2025
 
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Additional Resources

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