Severe Thunderstorms and Heavy Rainfall for the Southwest; Heat Spreads Across the Center of the Nation

Moisture will continue to move into areas of the West. This will increase showers and thunderstorms coverage and intensity, with the risk of flash flooding and damaging wind gusts. Meanwhile, heat across the Southwest will expand into the center of the nation this weekend into early next week. Trends favor this heat will spread across the Ohio Valley, mid-Atlantic next week. Read More >

Current conditions at

Garrison I-90 MP 174.4 (MTGAR)

Lat: 46.52361°NLon: 112.80843°WElev: 4327.0ft.

unknown precip

56°F

13°C

Humidity 55%
Wind Speed SW 1 MPH
Barometer NA
Dewpoint 40°F (4°C)
Visibility NA
Last update 30 Aug 12:15 AM MDT
Extended Forecast for

10 Miles NNW Elliston MT

  • Overnight

    Overnight: A 40 percent chance of rain, mainly between 3am and 4am.  Mostly cloudy, with a low around 41. West northwest wind 13 to 15 mph, with gusts as high as 26 mph.

    Low: 41 °F

    Chance Rain

  • Sunday

    Sunday: Patchy smoke between 2pm and 3pm. Sunny, with a high near 58. Breezy, with a west wind 13 to 23 mph, with gusts as high as 40 mph.

    High: 58 °F

    Mostly Sunny
    then Patchy
    Smoke and
    Breezy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 41. West wind 13 to 18 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 29 mph.

    Low: 41 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 69. West southwest wind around 6 mph.

    High: 69 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 47. West northwest wind around 5 mph becoming calm  in the evening.

    Low: 47 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 40 percent chance of rain before midnight.  Mostly cloudy, with a low around 50. New precipitation amounts of less than a tenth of an inch possible.

    Low: 50 °F

    Chance Rain
    then Mostly
    Cloudy

  • Wednesday

    Wednesday: A slight chance of rain, then showers likely and possibly a thunderstorm after noon.  Partly sunny, with a high near 66.

    High: 66 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 40 percent chance of rain, mainly between 3am and 4am. Mostly cloudy, with a low around 41. West northwest wind 13 to 15 mph, with gusts as high as 26 mph.
Sunday
Patchy smoke between 2pm and 3pm. Sunny, with a high near 58. Breezy, with a west wind 13 to 23 mph, with gusts as high as 40 mph.
Sunday Night
Partly cloudy, with a low around 41. West wind 13 to 18 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 29 mph.
Monday
Sunny, with a high near 69. West southwest wind around 6 mph.
Monday Night
Mostly clear, with a low around 47. West northwest wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 73.
Tuesday Night
A 40 percent chance of rain before midnight. Mostly cloudy, with a low around 50. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
A slight chance of rain, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 66.
Wednesday Night
Partly cloudy, with a low around 45.
Thursday
A slight chance of rain after noon. Mostly sunny, with a high near 64.
Thursday Night
Partly cloudy, with a low around 44.
Friday
Mostly sunny, with a high near 66.
Friday Night
Partly cloudy, with a low around 45.
Saturday
A slight chance of rain. Mostly sunny, with a high near 66.
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles NNW Elliston MT
 46.69°N 112.53°W (Elev. 5787 ft)
12:22 am MDT Aug 30, 2026
12am MDT Aug 30, 2026-6pm MDT Sep 5, 2026
 
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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