October Heat Wave in California; Tropical Cyclone Possible in the Gulf

Much higher than typical October temperatures will continue across coastal southern California up through the Bay Area and Central Valley through midweek resulting in result in Major to Extreme HeatRisk. A tropical depression is likely to form over the Gulf of America during the middle part of this week with further strengthening possible as it moves northeastward later this week. Read More >

Current conditions at

Garrison I-90 MP 174.4 (MTGAR)

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

NA

40°F

4°C

Humidity 66%
Wind Speed E 0 MPH
Barometer NA
Dewpoint 29°F (-2°C)
Visibility NA
Last update 06 Oct 01:30 AM MDT
Extended Forecast for

4 Miles NW Garrison MT

  • Overnight

    Overnight: Partly cloudy, with a low around 31. Light west northwest wind.

    Low: 31 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 74. Calm wind becoming west northwest 5 to 8 mph in the afternoon.

    High: 74 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 31. Northwest wind around 5 mph becoming calm  in the evening.

    Low: 31 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 74. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 74 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 34. Calm wind.

    Low: 34 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 34.

    Low: 34 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 31. Light west northwest wind.
Tuesday
Sunny, with a high near 74. Calm wind becoming west northwest 5 to 8 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 31. Northwest wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 74. Calm wind becoming northwest around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 34. Calm wind.
Thursday
Sunny, with a high near 73.
Thursday Night
Mostly clear, with a low around 40.
Friday
Mostly sunny, with a high near 76.
Friday Night
Partly cloudy, with a low around 34.
Saturday
A chance of rain before 3pm, then a chance of rain and snow. Partly sunny, with a high near 51.
Saturday Night
Rain and snow. Snow level 5700 feet lowering to 4600 feet after midnight . Mostly cloudy, with a low around 22.
Sunday
Snow likely. Mostly cloudy, with a high near 38.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 19.
Columbus Day
A chance of rain and snow. Partly sunny, with a high near 46.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NW Garrison MT
 46.57°N 112.88°W (Elev. 4626 ft)
12:21 am MDT Oct 6, 2026
1am MDT Oct 6, 2026-6pm MDT Oct 12, 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