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

Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

Hazardous Weather Conditions

Current conditions at

Blackfoot (MVMS) (BLK)

Lat: 43.1898667°NLon: 112.3332°WElev: 4520.0ft.

NA

80°F

27°C

Humidity 23%
Wind Speed SW 4 MPH
Barometer NA
Dewpoint 39°F (4°C)
Visibility NA
Heat Index79°F (26°C)
Last update 17 Aug 08:05 PM MDT
Extended Forecast for

18 Miles SE Basalt ID

Red Flag Warning until August 17, 09:00pm
Click here for hazard details and duration
...
  •  
    Red Flag Warning until August 17, 09:00pm

    NOW until 9:00pm Sun

    Red Flag Warning

  • Tonight

    Low: 52 °F

    Chance
    Showers then
    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 87. Southeast wind 8 to 14 mph becoming south southwest in the afternoon. Winds could gust as high as 20 mph.

    High: 87 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 52. South southwest wind 8 to 11 mph becoming east southeast after midnight.

    Low: 52 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 90. East southeast wind 8 to 10 mph becoming south southwest in the afternoon.

    High: 90 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 58. South southwest wind 8 to 11 mph becoming southeast after midnight.

    Low: 58 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 88.

    High: 88 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers after midnight. Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Thursday

    Thursday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

Detailed Forecast

Tonight
A chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and 11pm. Mostly clear, with a low around 52. East southeast wind around 8 mph. Chance of precipitation is 30%.
Monday
Sunny, with a high near 87. Southeast wind 8 to 14 mph becoming south southwest in the afternoon. Winds could gust as high as 20 mph.
Monday Night
Mostly clear, with a low around 52. South southwest wind 8 to 11 mph becoming east southeast after midnight.
Tuesday
Sunny, with a high near 90. East southeast wind 8 to 10 mph becoming south southwest in the afternoon.
Tuesday Night
Mostly clear, with a low around 58. South southwest wind 8 to 11 mph becoming southeast after midnight.
Wednesday
Mostly sunny, with a high near 88.
Wednesday Night
A 20 percent chance of showers after midnight. Partly cloudy, with a low around 55.
Thursday
Sunny, with a high near 86.
Thursday Night
Mostly clear, with a low around 54.
Friday
Sunny, with a high near 88.
Friday Night
Partly cloudy, with a low around 55.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
Saturday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 55.
Sunday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 84.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
18 Miles SE Basalt ID
 43.12°N 111.92°W (Elev. 5636 ft)
Last Update:
5:31 pm MDT Aug 17, 2025
Forecast Valid:
8pm MDT Aug 17, 2025-6pm MDT Aug 24, 2025
 
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