Heavy Rainfall and Flooding in the Mid-Atlantic; Heat and Wildfire Concerns in the West

Slow moving showers and thunderstorms may result in flash flooding for portions of the mid-Atlantic region through tonight. Meanwhile, excessive heat will continue to build across the West through Tuesday. Heat Advisories and Extreme Heat Warnings are in effect. Fire Weather concerns continue for the West with dry and breezy conditions. Watching the tropics across the Southeast. Read More >

Current conditions at

Lewistown, Lewistown Municipal Airport (KLWT)

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

Clear

63°F

17°C

Humidity	72%
Wind Speed	N 9 MPH
Barometer	30.04 in (1017.27 mb)
Dewpoint	54°F (12°C)
Visibility	10.00 mi
Last update	14 Jul 10:10 PM MDT

More Information:

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

Extended Forecast for

Lewistown Municipal MT

Tonight
Low: 50 °F
Chance
T-storms then
Showers
Likely
Tuesday
High: 56 °F
Showers
Tuesday Night
Low: 45 °F
Showers and
Patchy Fog
Wednesday
High: 62 °F
Chance
Showers and
Patchy Fog
Wednesday Night
Low: 42 °F
Partly Cloudy
Thursday
High: 79 °F
Sunny
Thursday Night
Low: 49 °F
Chance
T-storms then
Partly Cloudy
Friday
High: 75 °F
Mostly Sunny
Friday Night
Low: 51 °F
Mostly Clear

Detailed Forecast

Tonight

A chance of showers and thunderstorms, then showers likely after 3am. Mostly cloudy, with a low around 50. Northeast wind 9 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tuesday

Showers, with thunderstorms also possible after 9am. High near 56. East northeast wind 9 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

Tuesday Night

Showers and possibly a thunderstorm. Patchy fog after midnight. Low around 45. Northeast wind 7 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

Wednesday

A 50 percent chance of showers. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 62. East northeast wind 6 to 9 mph.

Wednesday Night

Partly cloudy, with a low around 42. East southeast wind 6 to 9 mph.

Thursday

Sunny, with a high near 79. South southeast wind 5 to 7 mph becoming east northeast in the afternoon.

Thursday Night

A 30 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 49. East northeast wind 5 to 8 mph becoming west southwest after midnight.

Friday

Mostly sunny, with a high near 75. Light and variable wind becoming northwest 5 to 7 mph in the morning.

Friday Night

Mostly clear, with a low around 51.

Saturday

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

Saturday Night

A slight chance of showers and thunderstorms. Partly cloudy, with a low around 54.

Sunday

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

Sunday Night

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