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

Critical Fire Weather Conditions Continue; Pacific Storm to Bring Heavy Snow to the Sierra-Nevada

Critical fire weather conditions are forecast for the Southern Plains and portions of Florida through Thursday, as gusty winds and dry conditions return to the region. A Pacific storm system will bring strong winds and low elevation rain to much of the West Coast and central Great Basin, and heavy high elevation mountain snow to the Sierra-Nevada through Wednesday. Read More >

Current conditions at

JETTE (JETM8)

Lat: 47.76706°NLon: 114.23378°WElev: 3593.0ft.

NA

62°F

17°C

Humidity 50%
Wind Speed S 2 MPH
Barometer NA
Dewpoint 43°F (6°C)
Visibility NA
Last update 21 Apr 10:43 AM MDT
Extended Forecast for

3 Miles NW Big Arm MT

  • Today

    Today: Sunny, with a high near 79. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 79 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, then becoming mostly clear toward daybreak, with a low around 46. Calm wind.

    Low: 46 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of rain, then showers and possibly a thunderstorm after noon. High near 62. Calm wind becoming southwest 5 to 8 mph in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 62 °F

    Chance Rain
    then Showers

  • Wednesday Night

    Wednesday Night: Rain. Low around 36. Southwest wind 3 to 7 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 36 °F

    Rain

  • Thursday

    Thursday: Rain before 9am, then rain and snow. High near 47. North wind around 5 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 47 °F

    Rain/Snow

  • Thursday Night

    Thursday Night: A 30 percent chance of rain before midnight. Mostly cloudy, with a low around 29.

    Low: 29 °F

    Chance Rain
    then Mostly
    Cloudy

  • Friday

    Friday: A 30 percent chance of snow, mainly after noon. Partly sunny, with a high near 47. Little or no snow accumulation expected.

    High: 47 °F

    Chance Snow

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 48.

    High: 48 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 79. Calm wind becoming southeast around 5 mph in the afternoon.
Tonight
Mostly cloudy, then becoming mostly clear toward daybreak, with a low around 46. Calm wind.
Wednesday
A chance of rain, then showers and possibly a thunderstorm after noon. High near 62. Calm wind becoming southwest 5 to 8 mph in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Rain. Low around 36. Southwest wind 3 to 7 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Thursday
Rain before 9am, then rain and snow. High near 47. North wind around 5 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Thursday Night
A 30 percent chance of rain before midnight. Mostly cloudy, with a low around 29.
Friday
A 30 percent chance of snow, mainly after noon. Partly sunny, with a high near 47. Little or no snow accumulation expected.
Friday Night
Mostly cloudy, with a low around 27.
Saturday
Partly sunny, with a high near 48.
Saturday Night
Mostly cloudy, with a low around 28.
Sunday
Mostly sunny, with a high near 51.
Sunday Night
Partly cloudy, with a low around 31.
Monday
A slight chance of rain. Mostly sunny, with a high near 55.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NW Big Arm MT
 47.84°N 114.32°W (Elev. 2940 ft)
Last Update:
2:01 am MDT Apr 21, 2026
Forecast Valid:
11am MDT Apr 21, 2026-6pm MDT Apr 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