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

Heavy Rainfall Threat Continues in the Southwest on Monday; Record Warmth in the Plains and Midwest

Remnant moisture from Tropical Storm Rachel will persist over portions of the Great Basin and Southwest on Monday, bringing a potential heavy to excessive rainfall risk. Well above average and potentially record breaking temperatures will develop across the Plains and Midwest early this week, spreading into the Lower Mississippi Valley and Southeast midweek. Read More >

Current conditions at

Helena Regional Airport (KHLN)

Lat: 46.60445°NLon: 111.9892°WElev: 3874.0ft.

Overcast

30°F

-1°C

Humidity 86%
Wind Speed WNW 5 MPH
Barometer 29.99 in (1015.58 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 12 Oct 03:55 AM MDT
Extended Forecast for

4 Miles SW Helena MT

  • Overnight

    Overnight: A 40 percent chance of snow. Cloudy, with a low around 23. Northwest wind 3 to 5 mph. Total nighttime snow accumulation of 4 to 8 inches possible.

    Low: 23 °F

    Chance Snow

  • Columbus Day

    Columbus Day: A 30 percent chance of snow, mainly before 7am. Mostly cloudy, with a high near 34. Calm wind. Little or no snow accumulation expected.

    High: 34 °F

    Chance Snow
    then Mostly
    Cloudy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 25. Calm wind becoming south southwest around 5 mph in the evening.

    Low: 25 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 40. West southwest wind 3 to 5 mph.

    High: 40 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 27. Calm wind becoming southwest around 6 mph in the evening.

    Low: 27 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 46. Southwest wind 3 to 6 mph.

    High: 46 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 36. West southwest wind 5 to 9 mph becoming light after midnight.

    Low: 36 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 50. Light and variable wind.

    High: 50 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear

Detailed Forecast

Overnight
A 40 percent chance of snow. Cloudy, with a low around 23. Northwest wind 3 to 5 mph. Total nighttime snow accumulation of 4 to 8 inches possible.
Columbus Day
A 30 percent chance of snow, mainly before 7am. Mostly cloudy, with a high near 34. Calm wind. Little or no snow accumulation expected.
Monday Night
Partly cloudy, with a low around 25. Calm wind becoming south southwest around 5 mph in the evening.
Tuesday
Mostly sunny, with a high near 40. West southwest wind 3 to 5 mph.
Tuesday Night
Mostly clear, with a low around 27. Calm wind becoming southwest around 6 mph in the evening.
Wednesday
Sunny, with a high near 46. Southwest wind 3 to 6 mph.
Wednesday Night
Partly cloudy, with a low around 36. West southwest wind 5 to 9 mph becoming light after midnight.
Thursday
Sunny, with a high near 50. Light and variable wind.
Thursday Night
Mostly clear, with a low around 34.
Friday
Sunny, with a high near 60.
Friday Night
Mostly clear, with a low around 41.
Saturday
Mostly sunny, with a high near 63.
Saturday Night
Partly cloudy, with a low around 43.
Sunday
Mostly sunny, with a high near 61.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Helena MT
 46.56°N 112.1°W (Elev. 5000 ft)
Last Update:
12:31 am MDT Oct 12, 2026
Forecast Valid:
4am MDT Oct 12, 2026-6pm MDT Oct 18, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation