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

Heat Wave Continues in the West; Critical Fire Weather Conditions in the High Plains

An anomalously early heat wave will continue to intensify and expand across the West and Southwest as the week progresses. Numerous daily and potentially monthly record highs are expected to be broken. Critical fire weather conditions will continue over the next couple of days across portions of the High Plains as gusty winds and dry conditions persist. Read More >

Current conditions at

Rexburg, Rexburg-Madison County Airport (KRXE)

Lat: 43.83167°NLon: 111.80611°WElev: 4859.0ft.

Clear

52°F

11°C

Humidity 30%
Wind Speed SSW 10 MPH
Barometer 30.16 in (1021.34 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Last update 18 Mar 12:53 AM MDT
Extended Forecast for

Rexburg ID

  • Overnight

    Overnight: Mostly cloudy early, then becoming clear, with a low around 37. South wind around 6 mph.

    Low: 37 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 72. East southeast wind 5 to 14 mph becoming west southwest in the afternoon. Winds could gust as high as 25 mph.

    High: 72 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 39. West southwest wind 5 to 13 mph becoming east after midnight. Winds could gust as high as 23 mph.

    Low: 39 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 75. Light and variable wind becoming southwest 8 to 13 mph in the afternoon. Winds could gust as high as 22 mph.

    High: 75 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 41. West southwest wind 6 to 13 mph becoming south southeast after midnight. Winds could gust as high as 23 mph.

    Low: 41 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 38.

    Low: 38 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy early, then becoming clear, with a low around 37. South wind around 6 mph.
Wednesday
Sunny, with a high near 72. East southeast wind 5 to 14 mph becoming west southwest in the afternoon. Winds could gust as high as 25 mph.
Wednesday Night
Mostly clear, with a low around 39. West southwest wind 5 to 13 mph becoming east after midnight. Winds could gust as high as 23 mph.
Thursday
Sunny, with a high near 75. Light and variable wind becoming southwest 8 to 13 mph in the afternoon. Winds could gust as high as 22 mph.
Thursday Night
Partly cloudy, with a low around 41. West southwest wind 6 to 13 mph becoming south southeast after midnight. Winds could gust as high as 23 mph.
Friday
Mostly sunny, with a high near 76.
Friday Night
Partly cloudy, with a low around 44.
Saturday
Mostly sunny, with a high near 72.
Saturday Night
Mostly cloudy, with a low around 38.
Sunday
Partly sunny, with a high near 60.
Sunday Night
Partly cloudy, with a low around 35.
Monday
Mostly sunny, with a high near 62.
Monday Night
Mostly cloudy, with a low around 39.
Tuesday
A 20 percent chance of rain. Partly sunny, with a high near 65. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Rexburg ID
 43.83°N 111.8°W (Elev. 4872 ft)
Last Update:
12:31 am MDT Mar 18, 2026
Forecast Valid:
1am MDT Mar 18, 2026-6pm MDT Mar 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation