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

Excessive Rainfall Possible This Weekend; October Heat Wave in California

A slow moving front will be the focus area for heavy to excessive rainfall and a threat for flash/urban flooding across the northern Gulf Coast and Southeast U.S. through this weekend. Abnormally hot, potentially record-breaking, temperatures will impact southern California and stretch north toward the Bay Area and Central Valley into next week. Read More >

Current conditions at

Lewistown Divide MT-200 MP 90.3 (MTLEW)

Lat: 47.07579°NLon: 109.26247°WElev: 4723.0ft.

NA

57°F

14°C

Humidity 44%
Wind Speed ESE 12 MPH
Barometer NA
Dewpoint 35°F (2°C)
Visibility NA
Last update 03 Oct 06:30 PM MDT
Extended Forecast for

7 Miles WNW Grass Range MT

  • Tonight

    Tonight: Cloudy, then gradual clearing toward daybreak, with a low around 43. East wind 5 to 10 mph becoming light and variable after midnight.

    Low: 43 °F

    Clearing Late

  • Sunday

    Sunday: Sunny, with a high near 75. Calm wind becoming southeast 5 to 8 mph in the afternoon.

    High: 75 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 53. Southeast wind 7 to 10 mph becoming west southwest after midnight.

    Low: 53 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 85. West southwest wind 13 to 21 mph, with gusts as high as 29 mph.

    High: 85 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 54. West wind 8 to 14 mph, with gusts as high as 21 mph.

    Low: 54 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 76. West wind 8 to 10 mph, with gusts as high as 20 mph.

    High: 76 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 48. North northwest wind around 6 mph becoming light and variable.

    Low: 48 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 75. West southwest wind 6 to 8 mph becoming north northwest in the afternoon.

    High: 75 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

Detailed Forecast

Tonight
Cloudy, then gradual clearing toward daybreak, with a low around 43. East wind 5 to 10 mph becoming light and variable after midnight.
Sunday
Sunny, with a high near 75. Calm wind becoming southeast 5 to 8 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 53. Southeast wind 7 to 10 mph becoming west southwest after midnight.
Monday
Sunny, with a high near 85. West southwest wind 13 to 21 mph, with gusts as high as 29 mph.
Monday Night
Mostly clear, with a low around 54. West wind 8 to 14 mph, with gusts as high as 21 mph.
Tuesday
Sunny, with a high near 76. West wind 8 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 48. North northwest wind around 6 mph becoming light and variable.
Wednesday
Mostly sunny, with a high near 75. West southwest wind 6 to 8 mph becoming north northwest in the afternoon.
Wednesday Night
Mostly clear, with a low around 47.
Thursday
Mostly sunny, with a high near 72.
Thursday Night
Mostly clear, with a low around 47.
Friday
Sunny, with a high near 78.
Friday Night
Partly cloudy, with a low around 47.
Saturday
A slight chance of rain. Partly sunny, with a high near 62.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles WNW Grass Range MT
 47.06°N 108.96°W (Elev. 3698 ft)
Last Update:
4:41 pm MDT Oct 3, 2026
Forecast Valid:
6pm MDT Oct 3, 2026-6pm MDT Oct 10, 2026
 
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Additional Resources

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Chance of Precipitation