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.

NA

48°F

9°C

Humidity 35%
Wind Speed W 4 MPH
Barometer NA
Dewpoint 21°F (-6°C)
Visibility NA
Wind Chill47°F (8°C)
Last update 13 Apr 01:30 PM MDT
Extended Forecast for

10 Miles NNE Ovando MT

  • This Afternoon

    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.

    High: 36 °F

    Chance Snow

  • Tonight

    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.

    Low: 28 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Tuesday

    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.

    High: 36 °F

    Gradual
    Clearing

  • Tuesday Night

    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.

    Low: 28 °F

    Mostly Cloudy
    then Chance
    Snow

  • Wednesday

    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.

    High: 35 °F

    Chance Snow
    then Snow

  • Wednesday Night

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

    Low: 21 °F

    Snow then
    Chance Snow

  • Thursday

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

    High: 26 °F

    Snow

  • Thursday Night

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

    Low: 18 °F

    Chance Snow

  • Friday

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

    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.
Saturday Night
Partly cloudy, with a low around 26.
Sunday
A slight chance of snow. Mostly sunny, with a high near 44.
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles NNE Ovando MT
 47.17°N 113.09°W (Elev. 7034 ft)
12:22 pm MDT Apr 13, 2026
1pm MDT Apr 13, 2026-6pm MDT Apr 19, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database