National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Typhoon Sinlaku to Impact the Marianas and Guam; Severe Weather from the Southern Plains to the Great Lakes

Typhoon Sinlaku will bring destructive winds, widespread heavy rain/flooding, thunderstorms, and coastal impacts to the Marianas Islands into Wednesday. Typhoon conditions are likely over CNMI and tropical storm conditions over Guam. Severe thunderstorms and heavy rain are expected from the Southern Plains to the Great Lakes today. Read More >

Hazardous Weather Conditions

Current conditions at

Helmville MT-200 MP 53.3 (MTHLM)

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

NA

51°F

11°C

Humidity 30%
Wind Speed NW 9 MPH
Barometer NA
Dewpoint 20°F (-7°C)
Visibility NA
Last update 14 Apr 04:00 PM MDT
Extended Forecast for

Ovando MT

Winter Weather Advisory April 15, 06:00pm until April 16, 09:00am
Click here for hazard details and duration
Winter Weather Advisory

  • Tonight

    Tonight: A slight chance of rain before 2am, then a slight chance of rain after 3am. Snow level 5700 feet lowering to 4800 feet after midnight . Mostly cloudy, with a low around 34. West wind 10 to 15 mph becoming light after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 20%.

    Low: 34 °F

    Slight Chance
    Rain

  • Wednesday

    Wednesday: Rain, mainly after 2pm. Snow level 4700 feet rising to 5700 feet in the afternoon. High near 53. Light west northwest wind becoming west 5 to 10 mph in the morning. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 53 °F

    Chance Rain
    then Rain

  • Wednesday Night

    Wednesday Night: Rain before 7pm, then rain and snow between 7pm and 9pm, then snow after 9pm. Low around 26. West wind 6 to 10 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 26 °F

    Rain/Snow
    then Chance
    Snow

  • Thursday

    Thursday: Snow likely. Mostly cloudy, with a high near 43. West wind 5 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 43 °F

    Snow Likely

  • Thursday Night

    Thursday Night: A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 24. West northwest wind 5 to 10 mph becoming light west after midnight. Winds could gust as high as 20 mph. New snow accumulation of less than a half inch possible.

    Low: 24 °F

    Chance Snow
    then Mostly
    Cloudy

  • Friday

    Friday: A chance of snow before noon, then a chance of snow showers after noon. Some thunder is also possible. Partly sunny, with a high near 47. Chance of precipitation is 50%. Little or no snow accumulation expected.

    High: 47 °F

    Chance Snow

  • Friday Night

    Friday Night: Partly cloudy, with a low around 22.

    Low: 22 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy

Detailed Forecast

Tonight
A slight chance of rain before 2am, then a slight chance of rain after 3am. Snow level 5700 feet lowering to 4800 feet after midnight . Mostly cloudy, with a low around 34. West wind 10 to 15 mph becoming light after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 20%.
Wednesday
Rain, mainly after 2pm. Snow level 4700 feet rising to 5700 feet in the afternoon. High near 53. Light west northwest wind becoming west 5 to 10 mph in the morning. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Rain before 7pm, then rain and snow between 7pm and 9pm, then snow after 9pm. Low around 26. West wind 6 to 10 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Thursday
Snow likely. Mostly cloudy, with a high near 43. West wind 5 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Thursday Night
A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 24. West northwest wind 5 to 10 mph becoming light west after midnight. Winds could gust as high as 20 mph. New snow accumulation of less than a half inch possible.
Friday
A chance of snow before noon, then a chance of snow showers after noon. Some thunder is also possible. Partly sunny, with a high near 47. Chance of precipitation is 50%. Little or no snow accumulation expected.
Friday Night
Partly cloudy, with a low around 22.
Saturday
Sunny, with a high near 56.
Saturday Night
Partly cloudy, with a low around 27.
Sunday
Mostly sunny, with a high near 66.
Sunday Night
Partly cloudy, with a low around 35.
Monday
A slight chance of rain. Partly sunny, with a high near 68.
Monday Night
A slight chance of rain. Mostly cloudy, with a low around 36.
Tuesday
A chance of rain. Partly sunny, with a high near 64.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Ovando MT
 47.02°N 113.12°W (Elev. 4173 ft)
Last Update:
2:01 pm MDT Apr 14, 2026
Forecast Valid:
4pm MDT Apr 14, 2026-6pm MDT Apr 21, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation