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

Gary Cooper Bridge I-15 MP 242 (MTYEP)

Lat: 47.13948°NLon: 111.85908°WElev: 3427.0ft.

NA

59°F

15°C

Humidity 41%
Wind Speed ENE 9 MPH
Barometer NA
Dewpoint 35°F (2°C)
Visibility NA
Last update 21 Mar 04:00 AM MDT
Extended Forecast for

4 Miles WSW Cascade MT

  • Overnight

    Overnight: A 20 percent chance of rain after 5am. Partly cloudy, with a steady temperature around 57. Southwest wind around 18 mph, with gusts as high as 26 mph.

    Low: 57 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: Rain likely, mainly between noon and 1pm. Mostly cloudy, with a temperature rising to near 56 by 10am, then falling to around 50 during the remainder of the day. Breezy, with a southwest wind 15 to 24 mph becoming north northwest in the morning. Winds could gust as high as 33 mph. Chance of precipitation is 60%.

    High: 56 °F⇓

    Rain Likely
    and Breezy

  • Saturday Night

    Saturday Night: A 20 percent chance of rain before 7pm. Mostly clear, with a low around 32. Southwest wind 11 to 20 mph, with gusts as high as 29 mph.

    Low: 32 °F

    Slight Chance
    Rain then
    Clear

  • Sunday

    Sunday: Sunny, with a high near 53. Breezy, with a west southwest wind 14 to 24 mph, with gusts as high as 38 mph.

    High: 53 °F

    Sunny then
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 33. Breezy, with a south southwest wind 19 to 24 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 34 mph.

    Low: 33 °F

    Partly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Monday

    Monday: Partly sunny, with a high near 57. South southwest wind 10 to 16 mph, with gusts as high as 26 mph.

    High: 57 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 37. Southwest wind 8 to 17 mph, with gusts as high as 25 mph.

    Low: 37 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of rain and snow after noon. Mostly cloudy, with a high near 54. West northwest wind 9 to 14 mph becoming southwest in the afternoon. Winds could gust as high as 23 mph.

    High: 54 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

  • Tuesday Night

    Tuesday Night: A slight chance of rain before midnight. Mostly cloudy, with a low around 44. Breezy.

    Low: 44 °F

    Slight Chance
    Rain then
    Mostly Cloudy
    and Breezy

Detailed Forecast

Overnight
A 20 percent chance of rain after 5am. Partly cloudy, with a steady temperature around 57. Southwest wind around 18 mph, with gusts as high as 26 mph.
Saturday
Rain likely, mainly between noon and 1pm. Mostly cloudy, with a temperature rising to near 56 by 10am, then falling to around 50 during the remainder of the day. Breezy, with a southwest wind 15 to 24 mph becoming north northwest in the morning. Winds could gust as high as 33 mph. Chance of precipitation is 60%.
Saturday Night
A 20 percent chance of rain before 7pm. Mostly clear, with a low around 32. Southwest wind 11 to 20 mph, with gusts as high as 29 mph.
Sunday
Sunny, with a high near 53. Breezy, with a west southwest wind 14 to 24 mph, with gusts as high as 38 mph.
Sunday Night
Partly cloudy, with a low around 33. Breezy, with a south southwest wind 19 to 24 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 34 mph.
Monday
Partly sunny, with a high near 57. South southwest wind 10 to 16 mph, with gusts as high as 26 mph.
Monday Night
Mostly cloudy, with a low around 37. Southwest wind 8 to 17 mph, with gusts as high as 25 mph.
Tuesday
A chance of rain and snow after noon. Mostly cloudy, with a high near 54. West northwest wind 9 to 14 mph becoming southwest in the afternoon. Winds could gust as high as 23 mph.
Tuesday Night
A slight chance of rain before midnight. Mostly cloudy, with a low around 44. Breezy.
Wednesday
A slight chance of rain. Mostly sunny, with a high near 55. Windy.
Wednesday Night
A slight chance of rain and snow. Partly cloudy, with a low around 30. Windy.
Thursday
Mostly sunny, with a high near 46. Breezy.
Thursday Night
Partly cloudy, with a low around 26. Breezy.
Friday
Sunny, with a high near 52.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Cascade MT
 47.24°N 111.79°W (Elev. 4747 ft)
Last Update:
2:52 am MDT Mar 21, 2026
Forecast Valid:
4am MDT Mar 21, 2026-6pm MDT Mar 27, 2026
 
Forecast Discussion
 
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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