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

Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Current conditions at

ST. IGNATIUS (SIGM)

Lat: 47.31333°NLon: 114.09806°WElev: 2990.0ft.

NA

65°F

18°C

Humidity 56%
Wind Speed S 2 MPH
Barometer NA
Dewpoint 49°F (9°C)
Visibility NA
Last update 28 Aug 09:00 AM MDT
Extended Forecast for

Arlee MT

  • Today

    Today: Partly sunny, with a high near 84. Calm wind becoming west northwest around 6 mph in the afternoon.

    High: 84 °F

    Partly Sunny

  • Tonight

    Tonight: A 20 percent chance of rain after 2am. Patchy smoke between 8pm and 1am. Partly cloudy, with a low around 57. West northwest wind around 6 mph becoming calm in the evening.

    Low: 57 °F

    Patchy Smoke
    then Slight
    Chance Rain

  • Saturday

    Saturday: A chance of rain before noon, then a chance of showers and thunderstorms after noon. Patchy smoke between 8am and 9am. Partly sunny, with a high near 77. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 50%.

    High: 77 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 9pm, then rain likely after 9pm. Mostly cloudy, with a low around 49. West wind around 6 mph becoming calm after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 49 °F

    Showers
    Likely

  • Sunday

    Sunday: A 40 percent chance of rain. Partly sunny, with a high near 68. Light west southwest wind becoming west 5 to 10 mph in the morning. New precipitation amounts of less than a tenth of an inch possible.

    High: 68 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 84. Calm wind becoming west northwest around 6 mph in the afternoon.
Tonight
A 20 percent chance of rain after 2am. Patchy smoke between 8pm and 1am. Partly cloudy, with a low around 57. West northwest wind around 6 mph becoming calm in the evening.
Saturday
A chance of rain before noon, then a chance of showers and thunderstorms after noon. Patchy smoke between 8am and 9am. Partly sunny, with a high near 77. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 50%.
Saturday Night
Showers likely and possibly a thunderstorm before 9pm, then rain likely after 9pm. Mostly cloudy, with a low around 49. West wind around 6 mph becoming calm after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
A 40 percent chance of rain. Partly sunny, with a high near 68. Light west southwest wind becoming west 5 to 10 mph in the morning. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
Partly cloudy, with a low around 45.
Monday
Sunny, with a high near 81.
Monday Night
Mostly clear, with a low around 52.
Tuesday
Mostly sunny, with a high near 84.
Tuesday Night
A slight chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 53.
Wednesday
A chance of rain. Partly sunny, with a high near 75.
Wednesday Night
A slight chance of rain. Mostly cloudy, with a low around 50.
Thursday
A chance of rain. Partly sunny, with a high near 70.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Arlee MT
 47.16°N 114.09°W (Elev. 3199 ft)
Last Update:
7:32 am MDT Aug 28, 2026
Forecast Valid:
9am MDT Aug 28, 2026-6pm MDT Sep 3, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation