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

Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Current conditions at

Rexburg, Rexburg-Madison County Airport (KRXE)

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

Rain

63°F

17°C

Humidity 82%
Wind Speed SW 3 MPH
Barometer 30.22 in (1023.37 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 28 Aug 11:35 AM MDT
Extended Forecast for

St. Anthony ID

  • Today

    Today: Rain and thunderstorms likely before 2pm, then a slight chance of showers and thunderstorms between 2pm and 3pm. Mostly cloudy, with a high near 74. North northeast wind around 8 mph becoming southwest in the afternoon. Chance of precipitation is 60%.

    High: 74 °F

    Showers
    Likely

  • Tonight

    Tonight: A chance of showers and thunderstorms, then rain likely after midnight. Increasing clouds, with a low around 50. Southwest wind 5 to 7 mph becoming light and variable after midnight. Chance of precipitation is 70%.

    Low: 50 °F

    Chance
    Showers then
    Rain Likely

  • Saturday

    Saturday: Rain and thunderstorms before 4pm, then showers likely and possibly a thunderstorm between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm. High near 73. Southwest wind 5 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 80%.

    High: 73 °F

    Showers

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after midnight. Low around 46. Southwest wind 5 to 13 mph becoming east after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 80%.

    Low: 46 °F

    Chance
    T-storms then
    Showers

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm before noon, then a slight chance of showers and thunderstorms after noon. Partly sunny, with a high near 71. Breezy, with a southeast wind 5 to 10 mph becoming southwest 18 to 23 mph in the afternoon. Winds could gust as high as 36 mph. Chance of precipitation is 60%.

    High: 71 °F

    Showers
    Likely then
    Slight Chance
    T-storms and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms before midnight, then a slight chance of rain after midnight. Partly cloudy, with a low around 43. Chance of precipitation is 20%.

    Low: 43 °F

    Slight Chance
    T-storms then
    Slight Chance
    Rain

  • Tuesday

    Tuesday: A 20 percent chance of rain before noon. Mostly sunny, with a high near 78.

    High: 78 °F

    Slight Chance
    Rain then
    Sunny

Detailed Forecast

Today
Rain and thunderstorms likely before 2pm, then a slight chance of showers and thunderstorms between 2pm and 3pm. Mostly cloudy, with a high near 74. North northeast wind around 8 mph becoming southwest in the afternoon. Chance of precipitation is 60%.
Tonight
A chance of showers and thunderstorms, then rain likely after midnight. Increasing clouds, with a low around 50. Southwest wind 5 to 7 mph becoming light and variable after midnight. Chance of precipitation is 70%.
Saturday
Rain and thunderstorms before 4pm, then showers likely and possibly a thunderstorm between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm. High near 73. Southwest wind 5 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 80%.
Saturday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after midnight. Low around 46. Southwest wind 5 to 13 mph becoming east after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 80%.
Sunday
Showers likely and possibly a thunderstorm before noon, then a slight chance of showers and thunderstorms after noon. Partly sunny, with a high near 71. Breezy, with a southeast wind 5 to 10 mph becoming southwest 18 to 23 mph in the afternoon. Winds could gust as high as 36 mph. Chance of precipitation is 60%.
Sunday Night
Mostly clear, with a low around 39.
Monday
Sunny, with a high near 75.
Monday Night
A slight chance of showers and thunderstorms before midnight, then a slight chance of rain after midnight. Partly cloudy, with a low around 43. Chance of precipitation is 20%.
Tuesday
A 20 percent chance of rain before noon. Mostly sunny, with a high near 78.
Tuesday Night
Partly cloudy, with a low around 45.
Wednesday
A 20 percent chance of rain. Mostly sunny, with a high near 74.
Wednesday Night
Partly cloudy, with a low around 43.
Thursday
Mostly sunny, with a high near 73.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
St. Anthony ID
 43.97°N 111.67°W (Elev. 4993 ft)
Last Update:
11:31 am MDT Aug 28, 2026
Forecast Valid:
11am MDT Aug 28, 2026-6pm MDT Sep 3, 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