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

Boulder Hill I-15 MP 170.9 (MTBOU)

Lat: 46.3233°NLon: 112.06891°WElev: 5593.0ft.

NA

75°F

24°C

Humidity 12%
Wind Speed WSW 0 MPH
Barometer NA
Dewpoint 19°F (-7°C)
Visibility NA
Last update 05 Oct 06:00 PM MDT
Extended Forecast for

9 Miles ENE Boulder MT

  • Tonight

    Tonight: Partly cloudy, with a low around 48. Northwest wind 6 to 8 mph, with gusts as high as 18 mph.

    Low: 48 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, then gradually becoming sunny, with a high near 68. West wind 5 to 7 mph.

    High: 68 °F

    Becoming
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 46. West wind around 6 mph.

    Low: 46 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 67. Southwest wind around 6 mph.

    High: 67 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 45. Light and variable wind becoming west northwest around 6 mph in the evening.

    Low: 45 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 65. West wind 3 to 6 mph.

    High: 65 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 45. Light and variable wind becoming west northwest 5 to 7 mph in the evening.

    Low: 45 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 67. South southwest wind 8 to 15 mph, with gusts as high as 28 mph.

    High: 67 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 48. Northwest wind 6 to 8 mph, with gusts as high as 18 mph.
Tuesday
Partly sunny, then gradually becoming sunny, with a high near 68. West wind 5 to 7 mph.
Tuesday Night
Mostly clear, with a low around 46. West wind around 6 mph.
Wednesday
Sunny, with a high near 67. Southwest wind around 6 mph.
Wednesday Night
Mostly clear, with a low around 45. Light and variable wind becoming west northwest around 6 mph in the evening.
Thursday
Sunny, with a high near 65. West wind 3 to 6 mph.
Thursday Night
Mostly clear, with a low around 45. Light and variable wind becoming west northwest 5 to 7 mph in the evening.
Friday
Mostly sunny, with a high near 67. South southwest wind 8 to 15 mph, with gusts as high as 28 mph.
Friday Night
Partly cloudy, with a low around 46.
Saturday
A chance of rain, mainly after noon. Partly sunny, with a high near 54.
Saturday Night
Rain and snow likely. Mostly cloudy, with a low around 32.
Sunday
Snow likely. Mostly cloudy, with a high near 36.
Sunday Night
Snow likely. Mostly cloudy, with a low around 27.
Columbus Day
A chance of snow. Partly sunny, with a high near 40.
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles ENE Boulder MT
 46.27°N 111.96°W (Elev. 6378 ft)
4:46 am MDT Oct 5, 2026
6pm MDT Oct 5, 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