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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 >

Current conditions at

Missoula, Missoula International Airport (KMSO)

Lat: 46.92083°NLon: 114.0925°WElev: 3199.0ft.

Clear

70°F

21°C

Humidity 43%
Wind Speed WNW 5 MPH
Barometer 29.96 in (1014.56 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 17 Aug 08:50 PM MDT
Extended Forecast for

Bonner MT

  • Tonight

    Tonight: Partly cloudy, with a low around 56. Calm wind.

    Low: 56 °F

    Partly Cloudy

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after noon. Mostly cloudy, then gradually becoming sunny, with a high near 90. Calm wind becoming west southwest around 6 mph in the afternoon.

    High: 90 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: Mostly clear, with a low around 59. West northwest wind around 5 mph becoming calm in the evening.

    Low: 59 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 97. Calm wind becoming west southwest around 5 mph in the afternoon.

    High: 97 °F

    Hot

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 60. West northwest wind around 6 mph becoming calm in the evening.

    Low: 60 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 54.

    Low: 54 °F

    Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 56. Calm wind.
Monday
A 20 percent chance of showers and thunderstorms after noon. Mostly cloudy, then gradually becoming sunny, with a high near 90. Calm wind becoming west southwest around 6 mph in the afternoon.
Monday Night
Mostly clear, with a low around 59. West northwest wind around 5 mph becoming calm in the evening.
Tuesday
Sunny and hot, with a high near 97. Calm wind becoming west southwest around 5 mph in the afternoon.
Tuesday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 60. West northwest wind around 6 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 91.
Wednesday Night
Mostly clear, with a low around 56.
Thursday
Sunny, with a high near 88.
Thursday Night
Clear, with a low around 54.
Friday
Sunny, with a high near 90.
Friday Night
Mostly clear, with a low around 55.
Saturday
Sunny, with a high near 93.
Saturday Night
Mostly clear, with a low around 57.
Sunday
Sunny, with a high near 93.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Bonner MT
 46.86°N 113.87°W (Elev. 3298 ft)
Last Update:
2:30 pm MDT Aug 17, 2025
Forecast Valid:
9pm 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