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

Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. Read More >

Current conditions at

ONION PARK (ONPM8)

Lat: 46.91348°NLon: 110.8536°WElev: 7410.0ft.

NA

39°F

4°C

Humidity 66%
Wind Speed NA NA MPH
Barometer NA
Dewpoint 29°F (-2°C)
Visibility NA
Last update 21 Mar 02:00 AM MDT
Extended Forecast for

Neihart MT

  • Overnight

    Overnight: Partly cloudy, with a low around 42. Southwest wind 13 to 18 mph, with gusts as high as 25 mph.

    Low: 42 °F

    Partly Cloudy

  • Saturday

    Saturday: Rain, possibly mixed with snow, becoming all snow after 1pm. Temperature falling to around 35 by 5pm. West wind 10 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    High: 44 °F⇓

    Rain Likely
    then
    Rain/Snow

  • Saturday Night

    Saturday Night: A 40 percent chance of snow before 8pm. Mostly cloudy, then gradually becoming clear, with a low around 23. West wind 14 to 17 mph, with gusts as high as 24 mph. New snow accumulation of less than a half inch possible.

    Low: 23 °F

    Chance Snow
    then Mostly
    Clear

  • Sunday

    Sunday: Sunny, with a high near 37. West southwest wind 16 to 21 mph, with gusts as high as 30 mph.

    High: 37 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 27. West southwest wind 11 to 21 mph, with gusts as high as 29 mph.

    Low: 27 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 44. Southwest wind 9 to 13 mph, with gusts as high as 21 mph.

    High: 44 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 31. West wind 9 to 14 mph, with gusts as high as 20 mph.

    Low: 31 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Tuesday

    Tuesday: A chance of snow. Mostly cloudy, with a high near 43. Southwest wind 9 to 13 mph, with gusts as high as 21 mph.

    High: 43 °F

    Chance Snow

  • Tuesday Night

    Tuesday Night: A chance of rain and snow before midnight. Mostly cloudy, with a low around 37.

    Low: 37 °F

    Chance
    Rain/Snow
    then Mostly
    Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 42. Southwest wind 13 to 18 mph, with gusts as high as 25 mph.
Saturday
Rain, possibly mixed with snow, becoming all snow after 1pm. Temperature falling to around 35 by 5pm. West wind 10 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Saturday Night
A 40 percent chance of snow before 8pm. Mostly cloudy, then gradually becoming clear, with a low around 23. West wind 14 to 17 mph, with gusts as high as 24 mph. New snow accumulation of less than a half inch possible.
Sunday
Sunny, with a high near 37. West southwest wind 16 to 21 mph, with gusts as high as 30 mph.
Sunday Night
Mostly cloudy, with a low around 27. West southwest wind 11 to 21 mph, with gusts as high as 29 mph.
Monday
Mostly cloudy, with a high near 44. Southwest wind 9 to 13 mph, with gusts as high as 21 mph.
Monday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 31. West wind 9 to 14 mph, with gusts as high as 20 mph.
Tuesday
A chance of snow. Mostly cloudy, with a high near 43. Southwest wind 9 to 13 mph, with gusts as high as 21 mph.
Tuesday Night
A chance of rain and snow before midnight. Mostly cloudy, with a low around 37.
Wednesday
A chance of snow. Partly sunny, with a high near 44. Breezy.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 23. Breezy.
Thursday
A chance of snow. Partly sunny, with a high near 32. Breezy.
Thursday Night
Mostly cloudy, with a low around 19.
Friday
Mostly sunny, with a high near 39.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Neihart MT
 46.95°N 110.71°W (Elev. 7559 ft)
Last Update:
12:51 am MDT Mar 21, 2026
Forecast Valid:
2am MDT Mar 21, 2026-6pm MDT Mar 27, 2026
 
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