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

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

61°F

16°C

Humidity 85%
Wind Speed SSE 2 MPH
Barometer NA
Dewpoint 57°F (14°C)
Visibility NA
Last update 23 Aug 12:00 AM MDT
Extended Forecast for

8 Miles E St. Ignatius MT

  • Overnight

    Overnight: A 20 percent chance of rain before 2am. Partly cloudy, with a low around 54. South wind 6 to 10 mph.

    Low: 54 °F

    Slight Chance
    Rain

  • Sunday

    Sunday: Sunny, with a high near 61. West wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 31 mph.

    High: 61 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 45. West wind 13 to 18 mph decreasing to 6 to 11 mph in the evening. Winds could gust as high as 30 mph.

    Low: 45 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 62. West southwest wind around 6 mph.

    High: 62 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 50. North northwest wind 6 to 9 mph becoming east southeast after midnight.

    Low: 50 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 53.

    Low: 53 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of rain before 2am. Partly cloudy, with a low around 54. South wind 6 to 10 mph.
Sunday
Sunny, with a high near 61. West wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 31 mph.
Sunday Night
Mostly clear, with a low around 45. West wind 13 to 18 mph decreasing to 6 to 11 mph in the evening. Winds could gust as high as 30 mph.
Monday
Sunny, with a high near 62. West southwest wind around 6 mph.
Monday Night
Mostly clear, with a low around 50. North northwest wind 6 to 9 mph becoming east southeast after midnight.
Tuesday
Sunny, with a high near 67.
Tuesday Night
Partly cloudy, with a low around 54.
Wednesday
Mostly sunny, with a high near 69.
Wednesday Night
Partly cloudy, with a low around 53.
Thursday
Sunny, with a high near 65.
Thursday Night
Partly cloudy, with a low around 50.
Friday
Sunny, with a high near 63.
Friday Night
Mostly clear, with a low around 48.
Saturday
Sunny, with a high near 60.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
8 Miles E St. Ignatius MT
 47.34°N 113.94°W (Elev. 6850 ft)
Last Update:
12:22 am MDT Aug 23, 2026
Forecast Valid:
1am MDT Aug 23, 2026-6pm MDT Aug 29, 2026
 
Forecast Discussion
 
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Additional Resources

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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