Widespread Showers in the Eastern US; Severe Thunderstorms in the Plains; Heatwave in the Desert Southwest

Widespread showers and thunderstorms across much of the central and eastern U.S. will produce areas of excessive rainfall, especially in the southern Mid-Atlantic states. Scattered severe thunderstorms are expected from Montana into portions of the central/southern Plains this weekend. A heatwave will build in the Desert Southwest, in parts of Arizona, southeastern California, and southern Nevada. Read More >

Hazardous Weather Conditions

Severe Thunderstorm Watch in effect from June 14, 06:15 PM MDT until June 15, 01:00 AM MDT

Current conditions at

Lewistown, Lewistown Municipal Airport (KLWT)

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

Mostly Cloudy

61°F

16°C

Humidity	93%
Wind Speed	ENE 3 MPH
Barometer	30.05 in (1017.61 mb)
Dewpoint	59°F (15°C)
Visibility	10.00 mi
Last update	14 Jun 11:05 PM MDT

More Information:

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

Extended Forecast for

5 Miles WSW Lewistown Municipal MT

Severe T-storm Watch until June 15, 01:00am

Click here for hazard details and duration

Severe T-storm Watch

Severe T-storm Watch until June 15, 01:00am
NOW until 1:00am Sun
Severe T-storm Watch
Tonight
Low: 52 °F
Severe
Thunderstorms
Sunday
High: 76 °F
Slight Chance
Showers then
T-storms
Sunday Night
Low: 50 °F
Showers then
Slight Chance
Showers
Monday
High: 72 °F
Slight Chance
Showers then
Chance
Showers
Monday Night
Low: 49 °F
Showers
Likely
Tuesday
High: 71 °F
Showers
Likely
Tuesday Night
Low: 48 °F
Slight Chance
T-storms then
Mostly Clear
Wednesday
High: 75 °F
Sunny

Detailed Forecast

Tonight

Showers and thunderstorms likely, mainly before 1am. Some of the storms could be severe. Mostly cloudy, with a low around 52. East southeast wind 3 to 5 mph. Chance of precipitation is 60%.

Sunday

A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 5pm. High near 76. Light and variable wind becoming northeast 5 to 7 mph in the afternoon. Chance of precipitation is 80%.

Sunday Night

Showers and possibly a thunderstorm before midnight, then a slight chance of showers. Low around 50. North northeast wind 5 to 8 mph becoming light and variable after midnight. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Monday

A 50 percent chance of showers, mainly after noon. Partly sunny, with a high near 72. Light and variable wind becoming north around 6 mph in the afternoon.

Monday Night

Showers likely and possibly a thunderstorm before midnight, then a chance of showers. Mostly cloudy, with a low around 49. North northeast wind around 7 mph becoming south after midnight. Chance of precipitation is 60%.

Tuesday

A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 71. South southwest wind 5 to 7 mph becoming northwest in the afternoon. Chance of precipitation is 60%.

Tuesday Night

A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 48. Northwest wind around 6 mph becoming south in the evening.

Wednesday

Sunny, with a high near 75. South southwest wind 6 to 8 mph becoming west northwest in the afternoon.

Wednesday Night

Mostly clear, with a low around 49.

Juneteenth

Sunny, with a high near 77.

Thursday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 49.

Friday

A chance of showers and thunderstorms. Mostly sunny, with a high near 73.

Friday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 46.