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

Thunderstorms and Heavy Rainfall in the Plains; Hazardous Heat in the South and Southeast

Severe thunderstorms will be possible across the northern/central Plains through Tuesday afternoon and from the central Plains to the Mid-Mississippi Valley Tuesday evening through Wednesday morning. Storms may produce large hail and damaging wind gusts, and heavy rainfall may lead to scattered instances of flash flooding. Meanwhile, hazardous heat persists across the South and Southeast. Read More >

Current conditions at

Monarch Canyon US-89 MP 53.5 (MTMON)

Lat: 47.1429°NLon: 110.82309°WElev: 5197.0ft.

NA

53°F

12°C

Humidity 60%
Wind Speed E 0 MPH
Barometer NA
Dewpoint 39°F (4°C)
Visibility NA
Last update 18 Aug 04:30 AM MDT
Extended Forecast for

Monarch MT

  • Today

    Today: A chance of showers, with thunderstorms also possible after 3pm. Mostly sunny, with a high near 71. South southwest wind 5 to 10 mph becoming west northwest in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 40%.

    High: 71 °F

    Mostly Sunny
    then Chance
    Showers

  • Tonight

    Tonight: A 30 percent chance of showers, mainly before 8pm. Partly cloudy, with a low around 51. West wind 5 to 9 mph becoming south in the evening.

    Low: 51 °F

    Chance
    Showers then
    Mostly Clear

  • Wednesday

    Wednesday: Patchy smoke between 1pm and 4pm. Sunny, with a high near 74. South southwest wind 7 to 9 mph becoming west in the afternoon.

    High: 74 °F

    Sunny then
    Patchy Smoke

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 52. West northwest wind 5 to 7 mph becoming light and variable.

    Low: 52 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 76. Light and variable wind becoming west northwest 5 to 7 mph in the afternoon.

    High: 76 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 53. North northwest wind around 6 mph becoming south southeast after midnight.

    Low: 53 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 80. Calm wind becoming north 5 to 7 mph in the afternoon.

    High: 80 °F

    Sunny

  • Friday Night

    Friday Night: A slight chance of showers. Mostly cloudy, with a low around 59. Northeast wind 7 to 10 mph becoming south after midnight.

    Low: 59 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: A chance of showers and thunderstorms after noon. Partly sunny, with a high near 80.

    High: 80 °F

    Partly Sunny
    then Chance
    Showers

Detailed Forecast

Today
A chance of showers, with thunderstorms also possible after 3pm. Mostly sunny, with a high near 71. South southwest wind 5 to 10 mph becoming west northwest in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 40%.
Tonight
A 30 percent chance of showers, mainly before 8pm. Partly cloudy, with a low around 51. West wind 5 to 9 mph becoming south in the evening.
Wednesday
Patchy smoke between 1pm and 4pm. Sunny, with a high near 74. South southwest wind 7 to 9 mph becoming west in the afternoon.
Wednesday Night
Mostly clear, with a low around 52. West northwest wind 5 to 7 mph becoming light and variable.
Thursday
Sunny, with a high near 76. Light and variable wind becoming west northwest 5 to 7 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 53. North northwest wind around 6 mph becoming south southeast after midnight.
Friday
Sunny, with a high near 80. Calm wind becoming north 5 to 7 mph in the afternoon.
Friday Night
A slight chance of showers. Mostly cloudy, with a low around 59. Northeast wind 7 to 10 mph becoming south after midnight.
Saturday
A chance of showers and thunderstorms after noon. Partly sunny, with a high near 80.
Saturday Night
A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 54.
Sunday
A slight chance of showers. Sunny, with a high near 73.
Sunday Night
Partly cloudy, with a low around 51.
Monday
Sunny, with a high near 75.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Monarch MT
 47.11°N 110.8°W (Elev. 5673 ft)
Last Update:
3:21 am MDT Aug 18, 2026
Forecast Valid:
4am MDT Aug 18, 2026-6pm MDT Aug 24, 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