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

84°F

29°C

Humidity 15%
Wind Speed NNE 4 MPH
Barometer NA
Dewpoint 33°F (1°C)
Visibility NA
Heat Index81°F (27°C)
Last update 19 Aug 03:00 PM MDT
Extended Forecast for

6 Miles SSE Toston MT

  • Tonight

    Tonight: Mostly clear, with a low around 50. North wind 5 to 8 mph becoming calm  in the evening.

    Low: 50 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 90. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 90 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 54. North northeast wind around 6 mph becoming calm  in the evening.

    Low: 54 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 92. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 92 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 55. North northeast wind around 6 mph becoming light and variable  after midnight.

    Low: 55 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms after noon.  Mostly cloudy, with a high near 86. Light and variable wind becoming south southwest 5 to 7 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 86 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms before midnight.  Mostly cloudy, with a low around 53. South southeast wind 3 to 8 mph.

    Low: 53 °F

    Chance
    Showers then
    Partly Cloudy

  • Sunday

    Sunday: A slight chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 85. South wind 5 to 10 mph becoming west 13 to 18 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 85 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 50. North wind 5 to 8 mph becoming calm in the evening.
Thursday
Sunny, with a high near 90. Calm wind becoming northwest around 6 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 54. North northeast wind around 6 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 92. Calm wind becoming north northwest around 5 mph in the afternoon.
Friday Night
Mostly cloudy, with a low around 55. North northeast wind around 6 mph becoming light and variable after midnight.
Saturday
A 30 percent chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 86. Light and variable wind becoming south southwest 5 to 7 mph in the afternoon. Winds could gust as high as 18 mph.
Saturday Night
A 30 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 53. South southeast wind 3 to 8 mph.
Sunday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 85. South wind 5 to 10 mph becoming west 13 to 18 mph in the afternoon. Winds could gust as high as 25 mph.
Sunday Night
Partly cloudy, with a low around 50.
Monday
Sunny, with a high near 83.
Monday Night
Partly cloudy, with a low around 50.
Tuesday
Mostly sunny, with a high near 85.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 51.
Wednesday
Mostly sunny, with a high near 86.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SSE Toston MT
 46.1°N 111.4°W (Elev. 3999 ft)
12:31 pm MDT Aug 19, 2026
4pm MDT Aug 19, 2026-6pm MDT Aug 26, 2026
 
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Additional Resources

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Hourly Weather Forecast

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