Thunderstorms and Heavy Rains Across Portions of the Central and Eastern US; Heat Expands to Portions of the East

Widespread showers and thunderstorms, some severe, may produce heavy downpours and flash flooding across much of the eastern and central U.S. Dangerous heat will continue in the Pacific Northwest and expand across portions of the East. Deep tropical moisture and associated thunderstorms will bring heavy rainfall and localized flash flooding across portions of Florida into the central Gulf Coast. Read More >

Current conditions at

Lewistown, Lewistown Municipal Airport (KLWT)

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

Rain

48°F

9°C

Humidity	93%
Wind Speed	ESE 4 MPH
Barometer	30.26 in (1024.72 mb)
Dewpoint	46°F (8°C)
Visibility	8.00 mi
Wind Chill	47°F (8°C)
Last update	15 Jul 10:30 PM MDT

More Information:

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

Extended Forecast for

Lewistown MT

Tonight
Low: 45 °F
Showers and
Patchy Fog
Wednesday
High: 64 °F
Chance
Showers and
Patchy Fog
then Partly
Sunny
Wednesday Night
Low: 41 °F
Mostly Clear
Thursday
High: 79 °F
Sunny
Thursday Night
Low: 49 °F
Slight Chance
T-storms then
Mostly Clear
Friday
High: 77 °F
Mostly Sunny
Friday Night
Low: 52 °F
Mostly Clear
Saturday
High: 86 °F
Sunny
Saturday Night
Low: 53 °F
Slight Chance
T-storms then
Partly Cloudy

Detailed Forecast

Tonight

Showers, mainly before 5am. Patchy fog after midnight. Low around 45. Northeast wind around 7 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

Wednesday

A 50 percent chance of showers between 9am and noon. Patchy fog before noon. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 64. East southeast wind 6 to 10 mph, with gusts as high as 18 mph.

Wednesday Night

Mostly clear, with a low around 41. Southeast wind 6 to 10 mph, with gusts as high as 18 mph.

Thursday

Sunny, with a high near 79. Light and variable wind becoming north northwest 5 to 7 mph in the afternoon.

Thursday Night

A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 49. North wind 5 to 8 mph becoming calm after midnight.

Friday

Mostly sunny, with a high near 77. Calm wind becoming north northwest around 6 mph in the afternoon.

Friday Night

Mostly clear, with a low around 52. Northeast wind 5 to 7 mph becoming southeast in the evening.

Saturday

Sunny, with a high near 86. South southeast wind 3 to 7 mph.

Saturday Night

A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 53.

Sunday

A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 83.

Sunday Night

A slight chance of showers. Partly cloudy, with a low around 52.