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

Unsettled Along the West Coast; Lake Effect Snow in the Great Lakes

The weather along the West Coast from the Pacific Northwest to northern California will remain unsettled this weekend with rain expected along the coast, a mix of rain and snow in inland valleys, and snow in the mountains. Lake effect snow will be possible near the Lower Great Lakes this weekend. Well above average temperatures are expected in the Northern and Central Plains through the weekend. Read More >

Current conditions at

Helena Regional Airport (KHLN)

Lat: 46.60445°NLon: 111.9892°WElev: 3874ft.

Clear

35°F

2°C

Humidity 61%
Wind Speed W 8 MPH
Barometer 29.95 in (1014.22 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill28°F (-2°C)
Last update 06 Mar 12:53 AM MST
Extended Forecast for

Helena MT

  • Overnight

    Overnight: Mostly cloudy, with a low around 28. South southeast wind 3 to 5 mph.

    Mostly Cloudy

    Low: 28 °F

  • Saturday

    Saturday: A 40 percent chance of rain after 2pm. Mostly cloudy, with a high near 55. Southeast wind 6 to 13 mph becoming west in the afternoon. Winds could gust as high as 26 mph.

    Mostly Cloudy
    then Chance
    Rain

    High: 55 °F

  • Saturday
    Night

    Saturday Night: Cloudy during the early evening, then becoming partly cloudy, with a low around 29. West wind 5 to 9 mph becoming light west southwest after midnight. Winds could gust as high as 26 mph.

    Partly Cloudy

    Low: 29 °F

  • Sunday

    Sunday: Mostly sunny, with a high near 52. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    Mostly Sunny

    High: 52 °F

  • Sunday
    Night

    Sunday Night: Mostly cloudy, with a low around 29. West southwest wind around 6 mph becoming calm in the evening.

    Mostly Cloudy

    Low: 29 °F

  • Monday

    Monday: A chance of snow after 11am, mixing with rain after 5pm. Mostly cloudy, with a high near 44. Calm wind becoming north around 6 mph in the afternoon. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

    Chance Snow
    then Chance
    Rain/Snow

    High: 44 °F

  • Monday
    Night

    Monday Night: A chance of rain and snow before 8pm, then a chance of snow. Mostly cloudy, with a low around 25. North wind around 6 mph becoming calm in the evening. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.

    Chance
    Rain/Snow
    then Slight
    Chance Snow

    Low: 25 °F

  • Tuesday

    Tuesday: A slight chance of snow. Partly sunny, with a high near 44. Calm wind becoming northwest around 6 mph in the afternoon.

    Slight Chance
    Snow

    High: 44 °F

  • Tuesday
    Night

    Tuesday Night: Partly cloudy, with a low around 23.

    Partly Cloudy

    Low: 23 °F

Detailed Forecast

Overnight
Mostly cloudy, with a low around 28. South southeast wind 3 to 5 mph.
Saturday
A 40 percent chance of rain after 2pm. Mostly cloudy, with a high near 55. Southeast wind 6 to 13 mph becoming west in the afternoon. Winds could gust as high as 26 mph.
Saturday Night
Cloudy during the early evening, then becoming partly cloudy, with a low around 29. West wind 5 to 9 mph becoming light west southwest after midnight. Winds could gust as high as 26 mph.
Sunday
Mostly sunny, with a high near 52. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Sunday Night
Mostly cloudy, with a low around 29. West southwest wind around 6 mph becoming calm in the evening.
Monday
A chance of snow after 11am, mixing with rain after 5pm. Mostly cloudy, with a high near 44. Calm wind becoming north around 6 mph in the afternoon. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.
Monday Night
A chance of rain and snow before 8pm, then a chance of snow. Mostly cloudy, with a low around 25. North wind around 6 mph becoming calm in the evening. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.
Tuesday
A slight chance of snow. Partly sunny, with a high near 44. Calm wind becoming northwest around 6 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 23.
Wednesday
Mostly sunny, with a high near 44.
Wednesday Night
Partly cloudy, with a low around 22.
Thursday
Mostly sunny, with a high near 41.
Thursday Night
Partly cloudy, with a low around 23.
Friday
Mostly sunny, with a high near 44.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Helena MT
 46.61°N 111.96°W (Elev. 3796 ft)
Last Update:
7:53 pm MST Mar 5, 2021
Forecast Valid:
1am MST Mar 6, 2021-6pm MST Mar 12, 2021
 
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Additional Resources

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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