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

TOSTON (TOSM)

Lat: 46.12222°NLon: 111.49472°WElev: 4058.0ft.

NA

86°F

30°C

Humidity 33%
Wind Speed NNE 5 MPH
Barometer NA
Dewpoint 54°F (12°C)
Visibility NA
Heat Index84°F (29°C)
Last update 31 Jul 07:00 PM MDT
Extended Forecast for

Toston MT

Heat Advisory August 1, 12:00pm until August 2, 03:00am
Red Flag Warning August 1, 02:00pm until August 2, 09:00pm
Click here for hazard details and duration
Heat Advisory
Red Flag Warning

  • Tonight

    Tonight: Patchy smoke. Mostly clear, with a low around 58. North wind around 6 mph becoming light and variable in the evening.

    Low: 58 °F

    Patchy Smoke

  • Saturday

    Saturday: Patchy smoke before noon. Sunny and hot, with a high near 99. Light and variable wind becoming west southwest 12 to 17 mph in the morning. Winds could gust as high as 30 mph.

    High: 99 °F

    Patchy Smoke
    then Sunny

  • Saturday Night

    Saturday Night: Patchy smoke. Mostly cloudy, with a low around 58. Southwest wind 14 to 18 mph becoming north after midnight. Winds could gust as high as 32 mph.

    Low: 58 °F

    Patchy Smoke

  • Sunday

    Sunday: Patchy smoke before 7am. Sunny, with a high near 86. North wind 10 to 16 mph, with gusts as high as 30 mph.

    High: 86 °F

    Patchy Smoke
    then Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 51. Breezy, with a north wind 20 to 25 mph decreasing to 14 to 19 mph after midnight. Winds could gust as high as 43 mph.

    Low: 51 °F

    Clear and
    Breezy then
    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 73. North wind 14 to 20 mph, with gusts as high as 33 mph.

    High: 73 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 45. North northeast wind 7 to 11 mph, with gusts as high as 22 mph.

    Low: 45 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 79. Northeast wind around 5 mph becoming calm.

    High: 79 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy smoke. Mostly clear, with a low around 58. North wind around 6 mph becoming light and variable in the evening.
Saturday
Patchy smoke before noon. Sunny and hot, with a high near 99. Light and variable wind becoming west southwest 12 to 17 mph in the morning. Winds could gust as high as 30 mph.
Saturday Night
Patchy smoke. Mostly cloudy, with a low around 58. Southwest wind 14 to 18 mph becoming north after midnight. Winds could gust as high as 32 mph.
Sunday
Patchy smoke before 7am. Sunny, with a high near 86. North wind 10 to 16 mph, with gusts as high as 30 mph.
Sunday Night
Mostly clear, with a low around 51. Breezy, with a north wind 20 to 25 mph decreasing to 14 to 19 mph after midnight. Winds could gust as high as 43 mph.
Monday
Sunny, with a high near 73. North wind 14 to 20 mph, with gusts as high as 33 mph.
Monday Night
Mostly clear, with a low around 45. North northeast wind 7 to 11 mph, with gusts as high as 22 mph.
Tuesday
Sunny, with a high near 79. Northeast wind around 5 mph becoming calm.
Tuesday Night
Mostly clear, with a low around 48.
Wednesday
Sunny, with a high near 88.
Wednesday Night
Mostly clear, with a low around 53.
Thursday
Sunny, with a high near 92.
Thursday Night
Mostly clear, with a low around 55.
Friday
Sunny, with a high near 91.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Toston MT
 46.16°N 111.44°W (Elev. 3999 ft)
Last Update:
4:31 pm MDT Jul 31, 2026
Forecast Valid:
8pm MDT Jul 31, 2026-6pm MDT Aug 7, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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