Super Typhoon Sinlaku to Impact the Marianas and Guam; Severe Weather Threat from the Central Plains to the Great Lakes

Super Typhoon Sinlaku will bring destructive winds, widespread heavy rain/flooding, and thunderstorms to the Marianas Islands into Wednesday. Tropical Storm conditions are likely over Guam. Severe thunderstorms and heavy rain are likely across the Upper Mississippi Valley and Great Lakes region with potential for large to very large hail, damaging wind, and tornadoes through Tuesday. Read More >

Current conditions at

Helmville MT-200 MP 53.3 (MTHLM)

Lat: 46.96826°NLon: 112.97487°WElev: 4199.0ft.

48°F

9°C

Humidity	35%
Wind Speed	W 4 MPH
Barometer	NA
Dewpoint	21°F (-6°C)
Visibility	NA
Wind Chill	47°F (8°C)
Last update	13 Apr 01:30 PM MDT

More Information:

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

Extended Forecast for

10 Miles NNE Ovando MT

This Afternoon
High: 36 °F
Chance Snow
Tonight
Low: 28 °F
Slight Chance
Snow then
Mostly Cloudy
Tuesday
High: 36 °F
Gradual
Clearing
Tuesday Night
Low: 28 °F
Mostly Cloudy
then Chance
Snow
Wednesday
High: 35 °F
Chance Snow
then Snow
Wednesday Night
Low: 21 °F
Snow then
Chance Snow
Thursday
High: 26 °F
Snow
Thursday Night
Low: 18 °F
Chance Snow
Friday
High: 31 °F
Snow Likely

Detailed Forecast

This Afternoon

A 50 percent chance of snow, mainly after 4pm. Mostly cloudy, with a high near 36. West wind 11 to 14 mph, with gusts as high as 24 mph. Total daytime snow accumulation of less than one inch possible.

Tonight

A 20 percent chance of snow before 9pm. Mostly cloudy, with a low around 28. West wind 11 to 14 mph, with gusts as high as 23 mph.

Tuesday

Cloudy through mid morning, then gradual clearing, with a high near 36. West southwest wind 11 to 18 mph, with gusts as high as 31 mph.

Tuesday Night

A 30 percent chance of snow after midnight. Increasing clouds, with a low around 28. West southwest wind 14 to 18 mph, with gusts as high as 31 mph. Little or no snow accumulation expected.

Wednesday

Snow, mainly after noon. High near 35. West southwest wind 11 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

Wednesday Night

Snow, mainly before midnight. Low around 21. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

Thursday

Snow. High near 26. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

Thursday Night

A chance of snow, mainly before midnight. Mostly cloudy, with a low around 18.

Friday

Snow likely, mainly after noon. Partly sunny, with a high near 31.

Friday Night

A slight chance of snow before midnight. Partly cloudy, with a low around 20.

Saturday

Sunny, with a high near 39.