Heavy Rainfall Threat for Mid-Atlantic into Southern New England; Fire Weather Hazards for the West

Heavy rain and isolated severe thunderstorms may cause flash flooding in the northern Mid-Atlantic today. The Mid-Atlantic and Southeast heatwave is slowly easing, while cooler, drier air spreads across the Central and Eastern U.S. for the start of August. Critical fire conditions persist in the Pacific Northwest and Four Corners due to dry storms and gusty winds. Read More >

Current conditions at

Lewistown, Lewistown Municipal Airport (KLWT)

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

Clear

73°F

23°C

Humidity	60%
Wind Speed	E 14 MPH
Barometer	30.21 in (1023.03 mb)
Dewpoint	59°F (15°C)
Visibility	10.00 mi
Last update	31 Jul 12:20 PM MDT

More Information:

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

Extended Forecast for

Lewistown MTSimilar City Names

This Afternoon
High: 78 °F
Chance
T-storms
Tonight
Low: 55 °F
Chance
T-storms
Friday
High: 81 °F
Mostly Sunny
then Chance
Showers
Friday Night
Low: 54 °F
Chance
T-storms then
Slight Chance
T-storms
Saturday
High: 78 °F
Mostly Sunny
then Chance
Showers
Saturday Night
Low: 53 °F
Chance
T-storms then
Partly Cloudy
Sunday
High: 80 °F
Sunny then
Chance
Showers
Sunday Night
Low: 53 °F
Partly Cloudy
Monday
High: 84 °F
Sunny then
Slight Chance
T-storms

Detailed Forecast

This Afternoon

A slight chance of showers, then a chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 78. East southeast wind around 15 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.

Tonight

A 40 percent chance of showers and thunderstorms, mainly before midnight. Mostly cloudy, with a low around 55. East southeast wind 5 to 15 mph, with gusts as high as 22 mph.

Friday

A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 81. East wind 5 to 10 mph.

Friday Night

A chance of showers and thunderstorms before 3am, then a slight chance of showers. Mostly cloudy, with a low around 54. East southeast wind 6 to 11 mph becoming light and variable after midnight. Chance of precipitation is 50%.

Saturday

A chance of showers between noon and 3pm, then a chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 78. Calm wind becoming west northwest around 6 mph in the afternoon. Chance of precipitation is 50%.

Saturday Night

A 40 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 53. West northwest wind around 6 mph becoming light and variable after midnight.

Sunday

A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 80. Light and variable wind becoming west northwest 5 to 8 mph in the morning.

Sunday Night

Partly cloudy, with a low around 53. Northwest wind around 6 mph becoming light and variable after midnight.

Monday

A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 84.

Monday Night

A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 52.

Tuesday

A slight chance of showers and thunderstorms. Mostly sunny, with a high near 78.

Tuesday Night

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

Wednesday

Sunny, with a high near 82.