Excessive Rainfall Potential for the Southeast; Heat Expands for Center of the Nation; Critical Fire Weather for Pacific Northwest

Flash flooding threatens areas from the Tennessee Valley to the Carolinas as storms repeat along a stalled front. Monsoonal storms may trigger flooding in the Southwest. Dangerous heat expands across the Desert Southwest, Plains, mid-Mississippi Valley and Southern Tier. Critical fire weather for interior Pacific Northwest. Cooler, drier air brings brief relief to the Great Lakes and Northeast. Read More >

Hazardous Weather Conditions

Current conditions at

Lewistown, Lewistown Municipal Airport (KLWT)

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

Clear

86°F

30°C

Humidity	30%
Wind Speed	W 17 MPH
Barometer	30.0 in (1015.92 mb)
Dewpoint	52°F (11°C)
Visibility	10.00 mi
Heat Index	84°F (29°C)
Last update	24 Jul 11:00 AM MDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Lewistown MT

Extreme Heat Warning July 24, 11:16pm until July 26, 09:00pm

Red Flag Warning July 24, 11:16pm until July 25, 09:00pm

Click here for hazard details and duration

Extreme Heat Warning

Red Flag Warning

Extreme Heat Warning July 24, 11:16pm until July 26, 09:00pm
Red Flag Warning July 24, 11:16pm until July 25, 09:00pm
NOW: Multiple hazards in effect
Click HERE for Details
Tonight
Low: 61 °F
Patchy Smoke
Saturday
High: 99 °F
Patchy Smoke
then Showers
Likely
Saturday Night
Low: 61 °F
Chance
Showers then
Mostly Clear
Sunday
High: 95 °F
Sunny
Sunday Night
Low: 58 °F
Partly Cloudy
Monday
High: 93 °F
Sunny
Monday Night
Low: 58 °F
Mostly Clear
Tuesday
High: 94 °F
Sunny

Detailed Forecast

Tonight

Patchy smoke after 2am. Mostly clear, with a low around 61. Light southeast wind.

Saturday

A chance of showers and thunderstorms between 3pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Patchy smoke before noon. Increasing clouds and hot, with a high near 99. Light and variable wind becoming west southwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 60%.

Saturday Night

A chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and 10pm. Partly cloudy, with a low around 61. Southwest wind 5 to 8 mph becoming calm after midnight. Chance of precipitation is 30%.

Sunday

Sunny, with a high near 95. Calm wind becoming west southwest around 5 mph in the afternoon.

Sunday Night

Partly cloudy, with a low around 58. West southwest wind around 6 mph becoming calm after midnight.

Monday

Sunny, with a high near 93. Calm wind becoming north around 6 mph in the afternoon.

Monday Night

Mostly clear, with a low around 58. Northeast wind 5 to 7 mph becoming light and variable after midnight.

Tuesday

Sunny, with a high near 94. Calm wind becoming west northwest around 5 mph in the afternoon.

Tuesday Night

Mostly clear, with a low around 59.