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

Heavy Rain and Thunderstorms in the Plains; Snow in the Northern Rockies

A storm system moving eastward will bring widespread showers and thunderstorms over parts of the Northern Plains to the Southern Plains and Upper Great Lakes through Friday. Heavy snow will continue over parts of the Northern Rockies. Read More >

Current conditions at

Helmville MT-200 MP 53.3 (MTHLM)

Lat: 46.96826°NLon: 112.97487°WElev: 4199.0ft.

unknown precip

35°F

2°C

Humidity 93%
Wind Speed NE 0 MPH
Barometer NA
Dewpoint 33°F (1°C)
Visibility NA
Last update 15 Oct 08:45 PM MDT
Extended Forecast for

Helmville MT

  • Tonight

    Tonight: A slight chance of rain and snow between 4am and 5am. Patchy fog after 1am. Widespread frost, mainly between midnight and 2am. Otherwise, cloudy, with a low around 26. Calm wind. Chance of precipitation is 20%.

    Low: 26 °F

    Areas Frost
    then Slight
    Chance
    Rain/Snow and
    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 9am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 53. Calm wind becoming west 5 to 8 mph in the afternoon.

    High: 53 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Widespread frost after midnight. Otherwise, partly cloudy, with a low around 23. West wind 5 to 7 mph.

    Low: 23 °F

    Mostly Clear
    then Frost

  • Friday

    Friday: A 40 percent chance of rain after noon. Snow level 4700 feet rising to 6300 feet in the afternoon. Partly sunny, with a high near 55. West wind 6 to 15 mph, with gusts as high as 25 mph.

    High: 55 °F

    Mostly Sunny
    then Chance
    Rain

  • Friday Night

    Friday Night: A chance of rain before 3am, then a slight chance of rain and snow. Snow level 6200 feet lowering to 4800 feet after midnight . Mostly cloudy, with a low around 23. West wind 6 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

    Low: 23 °F

    Chance Rain
    then Slight
    Chance
    Rain/Snow

  • Saturday

    Saturday: Widespread frost before 10am. Otherwise, mostly sunny, with a high near 53.

    High: 53 °F

    Frost then
    Mostly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of rain after midnight. Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy
    then Chance
    Rain

  • Sunday

    Sunday: Rain likely, mainly after noon. Mostly cloudy, with a high near 58.

    High: 58 °F

    Rain Likely

  • Sunday Night

    Sunday Night: Rain likely before 3am, then rain and snow likely. Snow level 6600 feet lowering to 5300 feet after midnight . Mostly cloudy, with a low around 27.

    Low: 27 °F

    Rain Likely
    then
    Rain/Snow
    Likely

Detailed Forecast

Tonight
A slight chance of rain and snow between 4am and 5am. Patchy fog after 1am. Widespread frost, mainly between midnight and 2am. Otherwise, cloudy, with a low around 26. Calm wind. Chance of precipitation is 20%.
Thursday
Patchy fog before 9am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 53. Calm wind becoming west 5 to 8 mph in the afternoon.
Thursday Night
Widespread frost after midnight. Otherwise, partly cloudy, with a low around 23. West wind 5 to 7 mph.
Friday
A 40 percent chance of rain after noon. Snow level 4700 feet rising to 6300 feet in the afternoon. Partly sunny, with a high near 55. West wind 6 to 15 mph, with gusts as high as 25 mph.
Friday Night
A chance of rain before 3am, then a slight chance of rain and snow. Snow level 6200 feet lowering to 4800 feet after midnight . Mostly cloudy, with a low around 23. West wind 6 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Saturday
Widespread frost before 10am. Otherwise, mostly sunny, with a high near 53.
Saturday Night
A 30 percent chance of rain after midnight. Partly cloudy, with a low around 29.
Sunday
Rain likely, mainly after noon. Mostly cloudy, with a high near 58.
Sunday Night
Rain likely before 3am, then rain and snow likely. Snow level 6600 feet lowering to 5300 feet after midnight . Mostly cloudy, with a low around 27.
Monday
Rain and snow likely before noon, then a chance of rain. Snow level 5000 feet. Mostly cloudy, with a high near 47.
Monday Night
A slight chance of rain and snow. Widespread frost. Snow level 5300 feet lowering to 4500 feet after midnight . Otherwise, partly cloudy, with a low around 20.
Tuesday
Widespread frost. Otherwise, mostly sunny, with a high near 52.
Tuesday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 23.
Wednesday
Mostly sunny, with a high near 53.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Helmville MT
 46.86°N 112.97°W (Elev. 4377 ft)
Last Update:
2:30 pm MDT Oct 15, 2025
Forecast Valid:
9pm MDT Oct 15, 2025-6pm MDT Oct 22, 2025
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation