Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

TOSTON (TOSM)

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

NA

50°F

10°C

Humidity 86%
Wind Speed ESE 2 MPH
Barometer NA
Dewpoint 46°F (8°C)
Visibility NA
Last update 19 Aug 04:00 AM MDT
Extended Forecast for

6 Miles SSW Toston MT

  • Today

    Today: Sunny, with a high near 83. Light and variable wind becoming north 5 to 7 mph in the afternoon.

    High: 83 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 50. North wind 5 to 7 mph becoming calm.

    Low: 50 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 87. South southeast wind around 5 mph becoming calm.

    High: 87 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 54. North wind around 6 mph becoming calm  in the evening.

    Low: 54 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 89. Light and variable wind.

    High: 89 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 56. North northeast wind around 6 mph becoming light and variable  in the evening.

    Low: 56 °F

    Mostly Cloudy

  • Saturday

    Saturday: A slight chance of showers, then a chance of showers and thunderstorms after noon.  Partly sunny, with a high near 84. Calm wind becoming west southwest 5 to 7 mph in the afternoon. Winds could gust as high as 21 mph.  Chance of precipitation is 30%.

    High: 84 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before midnight.  Mostly cloudy, with a low around 53. South southwest wind 3 to 7 mph. Winds could gust as high as 20 mph.

    Low: 53 °F

    Chance
    Showers then
    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 83. Light and variable wind becoming north 5 to 7 mph in the afternoon.
Tonight
Mostly clear, with a low around 50. North wind 5 to 7 mph becoming calm.
Thursday
Sunny, with a high near 87. South southeast wind around 5 mph becoming calm.
Thursday Night
Mostly clear, with a low around 54. North wind around 6 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 89. Light and variable wind.
Friday Night
Mostly cloudy, with a low around 56. North northeast wind around 6 mph becoming light and variable in the evening.
Saturday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 84. Calm wind becoming west southwest 5 to 7 mph in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 30%.
Saturday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 53. South southwest wind 3 to 7 mph. Winds could gust as high as 20 mph.
Sunday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 83.
Sunday Night
Partly cloudy, with a low around 50.
Monday
Sunny, with a high near 82.
Monday Night
Mostly cloudy, with a low around 52.
Tuesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 83.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SSW Toston MT
 46.12°N 111.5°W (Elev. 4085 ft)
4:16 am MDT Aug 19, 2026
5am MDT Aug 19, 2026-6pm MDT Aug 25, 2026
 
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