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 >

Current conditions at

Missoula, Missoula International Airport (KMSO)

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

Partly Cloudy

52°F

11°C

Humidity 87%
Wind Speed N 0 MPH
Barometer 30.17 in (1021.67 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 18 Sep 08:20 AM MDT
Extended Forecast for

Frenchtown MT

  • Today

    Today: A 20 percent chance of showers and thunderstorms after 4pm. Areas of fog before 10am. Otherwise, partly sunny, with a high near 75. Light and variable wind.

    High: 75 °F

    Areas Fog
    then Slight
    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms before 9pm, then a chance of rain after 9pm. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 50. Light and variable wind. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 50 °F

    Chance
    Showers and
    Patchy Fog

  • Saturday

    Saturday: A chance of rain before noon, then a chance of rain after 3pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 73. Calm wind. Chance of precipitation is 40%.

    High: 73 °F

    Chance Rain
    and Patchy
    Fog

  • Saturday Night

    Saturday Night: Patchy fog after 5am. Otherwise, mostly clear, with a low around 48. Calm wind.

    Low: 48 °F

    Mostly Clear
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy fog before 9am. Otherwise, sunny, with a high near 78. Calm wind.

    High: 78 °F

    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 4pm. Areas of fog before 10am. Otherwise, partly sunny, with a high near 75. Light and variable wind.
Tonight
A chance of showers and thunderstorms before 9pm, then a chance of rain after 9pm. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 50. Light and variable wind. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
A chance of rain before noon, then a chance of rain after 3pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 73. Calm wind. Chance of precipitation is 40%.
Saturday Night
Patchy fog after 5am. Otherwise, mostly clear, with a low around 48. Calm wind.
Sunday
Patchy fog before 9am. Otherwise, sunny, with a high near 78. Calm wind.
Sunday Night
Mostly clear, with a low around 49.
Monday
Sunny, with a high near 80.
Monday Night
Mostly clear, with a low around 49.
Tuesday
Sunny, with a high near 78.
Tuesday Night
Mostly clear, with a low around 48.
Wednesday
Sunny, with a high near 76.
Wednesday Night
Partly cloudy, with a low around 48.
Thursday
Mostly sunny, with a high near 79.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Frenchtown MT
 47.02°N 114.21°W (Elev. 3192 ft)
Last Update:
2:01 am MDT Sep 18, 2026
Forecast Valid:
8am 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