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

Areas of Dangerous Heat and Heavy Rain with Possible Flooding into this Weekend

Hot temperatures and high humidity are forecast to continue across much of northeast Texas into the mid-Mississippi Valley into this weekend with heat advisories in effect. Heavy to excessive rainfall occurring at times through Saturday could bring areas of flooding across parts of the central Plains into the upper Midwest/Great Lakes, and Four Corners states. Read More >

Current conditions at

Rexburg, Rexburg-Madison County Airport (KRXE)

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

Clear

66°F

19°C

Humidity 59%
Wind Speed S 12 MPH
Barometer 30.19 in (1022.35 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 17 Sep 12:35 PM MDT
Extended Forecast for

Rexburg ID

  • This Afternoon

    This Afternoon: Showers and possibly a thunderstorm, mainly before 2pm, then scattered showers and thunderstorms after 2pm. High near 77. South wind around 9 mph becoming east. Winds could gust as high as 18 mph. Chance of precipitation is 80%.

    High: 77 °F

    Showers

  • Tonight

    Tonight: Showers and thunderstorms likely before 3am, then scattered showers. Mostly cloudy, with a low around 51. East wind 3 to 7 mph. Chance of precipitation is 60%.

    Low: 51 °F

    Showers
    Likely

  • Friday

    Friday: Showers and thunderstorms likely before 4pm, then showers and possibly a thunderstorm between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm. High near 71. Light and variable wind becoming south southwest around 6 mph in the afternoon. Chance of precipitation is 80%.

    High: 71 °F

    Chance
    Showers then
    Showers

  • Friday Night

    Friday Night: Showers and thunderstorms before 3am, then a chance of showers. Low around 47. East southeast wind around 5 mph becoming calm after midnight. Chance of precipitation is 80%.

    Low: 47 °F

    Showers

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 3pm. Partly sunny, with a high near 63. Calm wind becoming southwest 5 to 8 mph in the morning. Chance of precipitation is 30%.

    High: 63 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 42.

    Low: 42 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: Mostly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm, mainly before 2pm, then scattered showers and thunderstorms after 2pm. High near 77. South wind around 9 mph becoming east. Winds could gust as high as 18 mph. Chance of precipitation is 80%.
Tonight
Showers and thunderstorms likely before 3am, then scattered showers. Mostly cloudy, with a low around 51. East wind 3 to 7 mph. Chance of precipitation is 60%.
Friday
Showers and thunderstorms likely before 4pm, then showers and possibly a thunderstorm between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm. High near 71. Light and variable wind becoming south southwest around 6 mph in the afternoon. Chance of precipitation is 80%.
Friday Night
Showers and thunderstorms before 3am, then a chance of showers. Low around 47. East southeast wind around 5 mph becoming calm after midnight. Chance of precipitation is 80%.
Saturday
A chance of showers, with thunderstorms also possible after 3pm. Partly sunny, with a high near 63. Calm wind becoming southwest 5 to 8 mph in the morning. Chance of precipitation is 30%.
Saturday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 42.
Sunday
Mostly sunny, with a high near 72.
Sunday Night
Mostly clear, with a low around 43.
Monday
Sunny, with a high near 73.
Monday Night
Partly cloudy, with a low around 43.
Tuesday
Sunny, with a high near 74.
Tuesday Night
Partly cloudy, with a low around 43.
Wednesday
Sunny, with a high near 74.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Rexburg ID
 43.83°N 111.8°W (Elev. 4872 ft)
Last Update:
12:31 pm MDT Sep 17, 2026
Forecast Valid:
12pm MDT Sep 17, 2026-6pm MDT Sep 23, 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