Record Heat for the Intermountain West and Northern Plains; Heavy Rainfall and Severe Weather Threats

Record setting heat is expected over the next several days from the Intermountain West through the northern Plains. Furthermore, fire weather concerns increase with dry and breezy conditions. Meanwhile, heavy rainfall and severe thunderstorm threats for the Ohio/Tennessee Valleys, central Appalachians and Southeast today. The threat shifts to central Gulf Coast and across central Texas this week. Read More >

Hazardous Weather Conditions

Heat Advisory until July 13, 09:00 PM MDT

Current conditions at

Lewistown, Lewistown Municipal Airport (KLWT)

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

Mostly Cloudy

N/A

Humidity	72%
Wind Speed	W 8 MPH
Barometer	NA
Dewpoint	N/A
Visibility	10.00 mi
Last update	27 Jun 08:20 PM MDT

More Information:

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

Extended Forecast for

3 Miles NW Lewistown MT

Heat Advisory July 12, 06:18am until July 13, 09:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory July 12, 06:18am until July 13, 09:00pm
NOW until 9:00pm Mon
Heat Advisory
Today
High: 105 °F
Hot
Tonight
Low: 59 °F
Slight Chance
T-storms then
Partly Cloudy
Monday
High: 94 °F
Sunny
Monday Night
Low: 60 °F
Partly Cloudy
Tuesday
High: 90 °F
Mostly Sunny
then Slight
Chance
T-storms
Tuesday Night
Low: 57 °F
Showers
Likely
Wednesday
High: 87 °F
Chance
Showers then
Chance
T-storms
Wednesday Night
Low: 56 °F
Chance
T-storms then
Slight Chance
Showers

Detailed Forecast

Today

Sunny and hot, with a high near 105. Light and variable wind becoming south southwest 9 to 14 mph in the morning. Winds could gust as high as 25 mph.

Tonight

A 20 percent chance of showers and thunderstorms before 7pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 59. West northwest wind 6 to 11 mph becoming light and variable after midnight. Winds could gust as high as 22 mph.

Monday

Sunny, with a high near 94. Light southeast wind becoming east southeast 6 to 11 mph in the afternoon. Winds could gust as high as 23 mph.

Monday Night

Partly cloudy, with a low around 60. East southeast wind 6 to 14 mph, with gusts as high as 24 mph.

Tuesday

A slight chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 90. Light and variable wind becoming northeast 6 to 11 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 20%.

Tuesday Night

Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 57. Northeast wind 6 to 11 mph becoming light east after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 70%.

Wednesday

A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 87. Calm wind becoming north northeast around 5 mph in the afternoon.

Wednesday Night

A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 56. Northeast wind around 5 mph becoming calm after midnight.

Thursday

A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 88.

Thursday Night

A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 56.

Friday

A slight chance of showers and thunderstorms. Mostly sunny, with a high near 88.

Friday Night

A slight chance of showers and thunderstorms. Partly cloudy, with a low around 56.

Saturday

Sunny, with a high near 88.