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

Heat Builds in the West; Severe Thunderstorms and Heavy Rain in the Upper Midwest and Mid-Mississippi Valley; Extremely Critical Fire Weather in the Northwest on Saturday

A heat wave over the Southwest will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Severe thunderstorms and heavy rainfall are expected over parts of the Upper Midwest to mid-Mississippi Valley today. Critical to extremely critical fire weather conditions from the Northwest and the northern Great Basin on Saturday and Sunday. Read More >

Hazardous Weather Conditions

Current conditions at

Miles City, Frank Wiley Field Airport (KMLS)

Lat: 46.42806°NLon: 105.88639°WElev: 2628.0ft.

Clear

79°F

26°C

Humidity 50%
Wind Speed SSE 14 MPH
Barometer 30.13 in (1020.32 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 31 Jul 10:35 AM MDT
Extended Forecast for

3 Miles WNW Miles City MT

Extreme Heat Watch August 1, 12:00pm until August 2, 12:00am
Click here for hazard details and duration
Extreme Heat Watch

  • Today

    Today: Isolated showers and thunderstorms before noon. Patchy smoke between noon and 3pm. Mostly sunny and hot, with a high near 99. South southeast wind 8 to 11 mph. Chance of precipitation is 20%.

    High: 99 °F

    Isolated
    T-storms then
    Patchy Smoke

  • Tonight

    Tonight: Patchy smoke. Mostly clear, with a low around 65. South wind 6 to 10 mph.

    Low: 65 °F

    Patchy Smoke

  • Saturday

    Saturday: Patchy smoke. Sunny and hot, with a high near 105. Light south wind becoming south southeast 5 to 9 mph in the afternoon.

    High: 105 °F

    Patchy Smoke

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 73. South southeast wind 11 to 18 mph.

    Low: 73 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny and hot, with a high near 95. North northwest wind 10 to 18 mph.

    High: 95 °F

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 63. North northeast wind 10 to 14 mph.

    Low: 63 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 80. North wind 16 to 18 mph.

    High: 80 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 52. North wind 12 to 17 mph decreasing to 6 to 11 mph after midnight.

    Low: 52 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 81. North northeast wind 3 to 6 mph.

    High: 81 °F

    Sunny

Detailed Forecast

Today
Isolated showers and thunderstorms before noon. Patchy smoke between noon and 3pm. Mostly sunny and hot, with a high near 99. South southeast wind 8 to 11 mph. Chance of precipitation is 20%.
Tonight
Patchy smoke. Mostly clear, with a low around 65. South wind 6 to 10 mph.
Saturday
Patchy smoke. Sunny and hot, with a high near 105. Light south wind becoming south southeast 5 to 9 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 73. South southeast wind 11 to 18 mph.
Sunday
Sunny and hot, with a high near 95. North northwest wind 10 to 18 mph.
Sunday Night
Mostly clear, with a low around 63. North northeast wind 10 to 14 mph.
Monday
Sunny, with a high near 80. North wind 16 to 18 mph.
Monday Night
Mostly clear, with a low around 52. North wind 12 to 17 mph decreasing to 6 to 11 mph after midnight.
Tuesday
Sunny, with a high near 81. North northeast wind 3 to 6 mph.
Tuesday Night
Mostly clear, with a low around 56. North northeast wind around 9 mph becoming east after midnight.
Wednesday
Sunny and hot, with a high near 91. East wind 7 to 9 mph.
Wednesday Night
Mostly clear, with a low around 62. East northeast wind 8 to 10 mph.
Thursday
Sunny and hot, with a high near 97. East northeast wind 6 to 9 mph becoming southeast in the morning.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Miles City MT
 46.43°N 105.88°W (Elev. 2612 ft)
Last Update:
1:28 am MDT Jul 31, 2026
Forecast Valid:
10am MDT Jul 31, 2026-6pm MDT Aug 6, 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