Hazardous Heat in the Western U.S.; Heavy Rain and Flooding Potential in the Southern Rockies

Widespread high temperatures in the 90s with heat indices exceeding 100 degrees will persist across the western U.S. this weekend into next week. Some daily high temperature records are forecast to be tied or broken. Monsoon conditions continue to linger across the Southern Rockies posing a heavy rainfall threat which may lead to additional flash flooding concerns. Read More >

Current conditions at

Lewistown, Lewistown Municipal Airport (KLWT)

Lat: 47.04917°NLon: 109.46639°WElev: 4167.0ft.

Clear

84°F

29°C

Humidity 32%
Wind Speed NNE 4 MPH
Barometer 30.3 in (1026.08 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 20 Jul 12:05 PM MDT
Extended Forecast for

Lewistown MT

  • This Afternoon

    This Afternoon: A slight chance of showers and thunderstorms between 2pm and 5pm.  Mostly sunny, with a high near 88. North northeast wind 6 to 8 mph.  Chance of precipitation is 20%.

    High: 88 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Mostly clear, with a low around 57. Northeast wind 5 to 7 mph becoming light and variable.

    Low: 57 °F

    Mostly Clear

  • Sunday

    Sunday: Widespread haze. Sunny, with a high near 88. Calm wind becoming east 5 to 8 mph in the afternoon.

    High: 88 °F

    Haze

  • Sunday Night

    Sunday Night: Widespread haze before 7pm. Mostly clear, with a low around 58. East wind 6 to 8 mph.

    Low: 58 °F

    Haze then
    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 89. East wind 5 to 9 mph.

    High: 89 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 58. East wind 7 to 10 mph.

    Low: 58 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 96. South southeast wind around 6 mph becoming north northwest in the afternoon.

    High: 96 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 62. East northeast wind 6 to 8 mph becoming south southwest after midnight.

    Low: 62 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 99.

    High: 99 °F

    Hot

Detailed Forecast

This Afternoon
A slight chance of showers and thunderstorms between 2pm and 5pm. Mostly sunny, with a high near 88. North northeast wind 6 to 8 mph. Chance of precipitation is 20%.
Tonight
Mostly clear, with a low around 57. Northeast wind 5 to 7 mph becoming light and variable.
Sunday
Widespread haze. Sunny, with a high near 88. Calm wind becoming east 5 to 8 mph in the afternoon.
Sunday Night
Widespread haze before 7pm. Mostly clear, with a low around 58. East wind 6 to 8 mph.
Monday
Sunny, with a high near 89. East wind 5 to 9 mph.
Monday Night
Mostly clear, with a low around 58. East wind 7 to 10 mph.
Tuesday
Sunny and hot, with a high near 96. South southeast wind around 6 mph becoming north northwest in the afternoon.
Tuesday Night
Mostly clear, with a low around 62. East northeast wind 6 to 8 mph becoming south southwest after midnight.
Wednesday
Sunny and hot, with a high near 99.
Wednesday Night
Partly cloudy, with a low around 62.
Thursday
Mostly sunny and hot, with a high near 98.
Thursday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 59.
Friday
A slight chance of showers. Mostly sunny, with a high near 88.
Click Map For Forecast

ABOUT THIS FORECAST

 
Point Forecast:
Lewistown MT
 47.07°N 109.43°W (Elev. 3898 ft)
11:26 am MDT Jul 20, 2024
12pm MDT Jul 20, 2024-6pm MDT Jul 26, 2024
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database