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

Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Hazardous Weather Conditions

Current conditions at

Bear Lake County Airport (K1U7)

Lat: 42.2497°NLon: 111.3416°WElev: 5928.0ft.

Mist

54°F

12°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 30.28 in (1025.4 mb)
Dewpoint 54°F (12°C)
Visibility 3.00 mi
Last update 18 Sep 10:55 AM MDT
Extended Forecast for

Montpelier ID

Flood Watch until September 19, 12:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch until September 19, 12:00am

    NOW until 12:00am Sat

    Flood Watch

  • Today

    High: 68 °F

    Showers
    Likely

  • Tonight

    Tonight: Showers and thunderstorms, mainly before 2am. Low around 39. East southeast wind around 6 mph becoming calm in the evening. Chance of precipitation is 80%.

    Low: 39 °F

    Showers then
    Scattered
    Showers

  • Saturday

    Saturday: A chance of rain and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 62. Calm wind becoming west 5 to 7 mph in the afternoon. Chance of precipitation is 60%.

    High: 62 °F

    Chance Rain
    then Showers
    Likely

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms before 9pm, then a slight chance of rain between 9pm and midnight. Mostly cloudy, with a low around 34. Northwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 20%.

    Low: 34 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 65. Calm wind becoming west northwest around 6 mph in the afternoon.

    High: 65 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 35.

    Low: 35 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 39.

    Low: 39 °F

    Partly Cloudy

Detailed Forecast

Today
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 68. Southeast wind around 7 mph becoming south southwest in the afternoon. Chance of precipitation is 70%.
Tonight
Showers and thunderstorms, mainly before 2am. Low around 39. East southeast wind around 6 mph becoming calm in the evening. Chance of precipitation is 80%.
Saturday
A chance of rain and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 62. Calm wind becoming west 5 to 7 mph in the afternoon. Chance of precipitation is 60%.
Saturday Night
A slight chance of showers and thunderstorms before 9pm, then a slight chance of rain between 9pm and midnight. Mostly cloudy, with a low around 34. Northwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 20%.
Sunday
Mostly sunny, with a high near 65. Calm wind becoming west northwest around 6 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 35.
Monday
Sunny, with a high near 70.
Monday Night
Partly cloudy, with a low around 39.
Tuesday
Mostly sunny, with a high near 72.
Tuesday Night
A slight chance of showers and thunderstorms before midnight, then a slight chance of rain after midnight. Partly cloudy, with a low around 39. Chance of precipitation is 20%.
Wednesday
Sunny, with a high near 72.
Wednesday Night
Mostly clear, with a low around 39.
Thursday
Sunny, with a high near 74.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Montpelier ID
 42.32°N 111.31°W (Elev. 5955 ft)
Last Update:
10:36 am MDT Sep 18, 2026
Forecast Valid:
11am MDT Sep 18, 2026-6pm MDT Sep 24, 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