Dangerous Heat over the South-Central and Southwest U.S. Through Next Week

Dangerous heat persists across the Desert Southwest through this weekend and across the Southern Plains and Lower Mississippi Valley through at least the middle of next week. Numerous daily record high temperatures are expected through at least Tuesday for much of Texas and Oklahoma as well as portions of Louisiana, New Mexico, and Arizona. Read More >

Current conditions at

ST. IGNATIUS (SIGM)

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

NA

67°F

19°C

Humidity 55%
Wind Speed SSW 1 MPH
Barometer NA
Dewpoint 51°F (11°C)
Visibility NA
Last update 21 Aug 09:00 AM MDT
Extended Forecast for

St. Ignatius MT

  • Today

    Today: Sunny, with a high near 91. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 91 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 58. North wind around 5 mph becoming light and variable  after midnight.

    Low: 58 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 30 percent chance of rain after noon.  Cloudy through mid morning, then becoming mostly sunny, with a high near 91. Calm wind becoming west around 5 mph in the afternoon.

    High: 91 °F

    Mostly Cloudy
    then Chance
    Rain

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before midnight, then a slight chance of rain after midnight.  Mostly cloudy, with a low around 54. Southeast wind 5 to 7 mph becoming light and variable  after midnight.  Chance of precipitation is 40%.

    Low: 54 °F

    Chance
    Showers

  • Sunday

    Sunday: Sunny, with a high near 83. Calm wind becoming west 5 to 9 mph in the afternoon.

    High: 83 °F

    Sunny

  • Sunday Night

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

    Low: 49 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 91. Calm wind becoming north northwest around 5 mph in the afternoon.
Tonight
Mostly cloudy, with a low around 58. North wind around 5 mph becoming light and variable after midnight.
Saturday
A 30 percent chance of rain after noon. Cloudy through mid morning, then becoming mostly sunny, with a high near 91. Calm wind becoming west around 5 mph in the afternoon.
Saturday Night
A chance of showers and thunderstorms before midnight, then a slight chance of rain after midnight. Mostly cloudy, with a low around 54. Southeast wind 5 to 7 mph becoming light and variable after midnight. Chance of precipitation is 40%.
Sunday
Sunny, with a high near 83. Calm wind becoming west 5 to 9 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 49.
Monday
Sunny, with a high near 83.
Monday Night
Mostly clear, with a low around 50.
Tuesday
Sunny, with a high near 86.
Tuesday Night
Partly cloudy, with a low around 52.
Wednesday
Sunny, with a high near 86.
Wednesday Night
Partly cloudy, with a low around 51.
Thursday
Mostly sunny, with a high near 82.
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ABOUT THIS FORECAST

 
Point Forecast:
St. Ignatius MT
 47.33°N 114.09°W (Elev. 2966 ft)
2:01 am MDT Aug 21, 2026
10am MDT Aug 21, 2026-6pm MDT Aug 27, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database