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

Heat Builds in the West; Extremely Critical Fire Weather in the Northwest

A heat wave over the Southwest will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Critical to extremely critical fire weather conditions are forecast from the Northwest and the northern Great Basin this weekend. Particularly Dangerous Situation Red Flag Warnings have been issued. Read More >

Hazardous Weather Conditions

Current conditions at

Logan Pass Visitors Center (LGPVC)

Lat: 48.6949°NLon: 113.7169°WElev: 6775.0ft.

NA

68°F

20°C

Humidity 25%
Wind Speed WNW 7 MPH
Barometer 30.27 in (1025.06 mb)
Dewpoint 32°F (0°C)
Visibility NA
Last update 31 Jul 04:00 PM MDT
Extended Forecast for

8 Miles WSW St Mary MT

High Wind Warning August 1, 06:00pm until August 2, 12:00pm
Red Flag Warning August 1, 02:00pm until August 2, 12:00am
Click here for hazard details and duration
High Wind Warning
Red Flag Warning

  • Tonight

    Tonight: Areas of smoke before midnight, then patchy smoke after 3am. Mostly clear, with a steady temperature around 59. West southwest wind around 11 mph.

    Low: 59 °F

    Areas Smoke

  • Saturday

    Saturday: Patchy smoke. Sunny, with a high near 72. Windy, with a west southwest wind 9 to 19 mph increasing to 22 to 32 mph. Winds could gust as high as 46 mph.

    High: 72 °F

    Patchy Smoke
    and Windy

  • Saturday Night

    Saturday Night: Patchy smoke before 9pm, then areas of smoke after 3am. Mostly clear, with a low around 44. Very windy, with a west southwest wind 39 to 49 mph, with gusts as high as 70 mph.

    Low: 44 °F

    Areas Smoke
    and Very
    Windy

  • Sunday

    Sunday: Areas of smoke before 7am. Sunny, with a high near 53. Very windy, with a west southwest wind 42 to 47 mph decreasing to 30 to 35 mph in the afternoon. Winds could gust as high as 60 mph.

    High: 53 °F

    Areas Smoke
    and Very
    Windy then
    Sunny and
    Windy

  • Sunday Night

    Sunday Night: A slight chance of rain showers after midnight, mixing with snow after 3am. Partly cloudy, with a low around 35. Windy, with a west southwest wind 25 to 30 mph decreasing to 14 to 19 mph after midnight. Winds could gust as high as 41 mph. Chance of precipitation is 20%.

    Low: 35 °F

    Slight Chance
    Rain/Snow and
    Windy

  • Monday

    Monday: Mostly sunny, with a high near 51. Northwest wind around 9 mph becoming west southwest in the afternoon.

    High: 51 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 36. North northwest wind 5 to 7 mph becoming south southeast after midnight.

    Low: 36 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 60. Southeast wind 3 to 7 mph.

    High: 60 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

Detailed Forecast

Tonight
Areas of smoke before midnight, then patchy smoke after 3am. Mostly clear, with a steady temperature around 59. West southwest wind around 11 mph.
Saturday
Patchy smoke. Sunny, with a high near 72. Windy, with a west southwest wind 9 to 19 mph increasing to 22 to 32 mph. Winds could gust as high as 46 mph.
Saturday Night
Patchy smoke before 9pm, then areas of smoke after 3am. Mostly clear, with a low around 44. Very windy, with a west southwest wind 39 to 49 mph, with gusts as high as 70 mph.
Sunday
Areas of smoke before 7am. Sunny, with a high near 53. Very windy, with a west southwest wind 42 to 47 mph decreasing to 30 to 35 mph in the afternoon. Winds could gust as high as 60 mph.
Sunday Night
A slight chance of rain showers after midnight, mixing with snow after 3am. Partly cloudy, with a low around 35. Windy, with a west southwest wind 25 to 30 mph decreasing to 14 to 19 mph after midnight. Winds could gust as high as 41 mph. Chance of precipitation is 20%.
Monday
Mostly sunny, with a high near 51. Northwest wind around 9 mph becoming west southwest in the afternoon.
Monday Night
Partly cloudy, with a low around 36. North northwest wind 5 to 7 mph becoming south southeast after midnight.
Tuesday
Sunny, with a high near 60. Southeast wind 3 to 7 mph.
Tuesday Night
Mostly clear, with a low around 43.
Wednesday
Sunny, with a high near 65.
Wednesday Night
Mostly clear, with a low around 49.
Thursday
Sunny, with a high near 66.
Thursday Night
Mostly clear, with a low around 50.
Friday
Sunny, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
8 Miles WSW St Mary MT
 48.71°N 113.59°W (Elev. 7999 ft)
Last Update:
4:31 pm MDT Jul 31, 2026
Forecast Valid:
10pm MDT Jul 31, 2026-6pm MDT Aug 7, 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