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

Tropical Storm Arthur and Heavy Rainfall in the South; Severe Weather in the Midwest

An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana tonight. Intense tornadoes, swaths of damaging gusts, and hail in excess of 2 inches in diameter possible. Tropical Storm Arthur will continue to produce strong winds across coastal Upper Texas and Louisiana tonight, as well as potentially life-threatening flooding across southern Louisiana into Mississippi. Read More >

Current conditions at

Ravalli County Airport (KHRF)

Lat: 46.25463°NLon: 114.1246°WElev: 3644.0ft.

Clear

54°F

12°C

Humidity 62%
Wind Speed SSE 8 MPH
Barometer 29.98 in (1015.24 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 17 Jun 10:15 PM MDT
Extended Forecast for

Corvallis MT

  • Tonight

    Tonight: Mostly clear, with a low around 46. West wind around 5 mph becoming light and variable.

    Low: 46 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 81. Light and variable wind becoming northwest 5 to 8 mph in the afternoon.

    High: 81 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 48. North northwest wind 5 to 8 mph becoming calm in the evening.

    Low: 48 °F

    Partly Cloudy

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 87. Light and variable wind.

    High: 87 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 55. North wind around 6 mph becoming calm in the evening.

    Low: 55 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 46. West wind around 5 mph becoming light and variable.
Thursday
Sunny, with a high near 81. Light and variable wind becoming northwest 5 to 8 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 48. North northwest wind 5 to 8 mph becoming calm in the evening.
Juneteenth
Mostly sunny, with a high near 87. Light and variable wind.
Friday Night
Partly cloudy, with a low around 55. North wind around 6 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 82.
Saturday Night
Partly cloudy, with a low around 49.
Sunday
Sunny, with a high near 82.
Sunday Night
Mostly clear, with a low around 47.
Monday
Sunny, with a high near 83.
Monday Night
Mostly clear, with a low around 50.
Tuesday
Sunny, with a high near 90.
Tuesday Night
Mostly clear, with a low around 54.
Wednesday
Sunny, with a high near 89.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Corvallis MT
 46.3°N 114.13°W (Elev. 3510 ft)
Last Update:
2:01 pm MDT Jun 17, 2026
Forecast Valid:
10pm MDT Jun 17, 2026-6pm MDT Jun 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