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

Erin Strengthens to a Hurricane; Heavy Rainfall Possible in Puerto Rico and the Virgin Islands, the Upper Midwest, South Texas

Hurricane Erin may bring isolated flash and urban flooding, landslides or mudslides, and possible tropical storm conditions to Puerto Rico and the U.S. Virgin Islands this weekend. Scattered thunderstorms and heavy rainfall may bring areas of flooding this weekend over the Upper Midwest. A tropical disturbance will bring locally heavy rain and mainly urban flash flooding to far southern Texas. Read More >

Current conditions at

Helena Regional Airport (KHLN)

Lat: 46.60445°NLon: 111.9892°WElev: 3874.0ft.

Clear

86°F

30°C

Humidity 23%
Wind Speed NE 8 MPH
Barometer 29.9 in (1012.53 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 15 Aug 02:53 PM MDT
Extended Forecast for

Clancy MT

  • Tonight

    Tonight: Mostly clear, with a low around 54. Northwest wind 5 to 8 mph becoming calm in the evening.

    Low: 54 °F

    Mostly Clear

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms, mainly after 5pm. Increasing clouds, with a high near 88. Calm wind becoming north 5 to 8 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 88 °F

    Sunny then
    Chance
    Showers

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Cloudy, then gradually becoming partly cloudy, with a low around 54. West southwest wind 5 to 9 mph becoming calm after midnight. Chance of precipitation is 20%.

    Low: 54 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: A chance of showers and thunderstorms between noon and 3pm, then a chance of showers after 3pm. Partly sunny, with a high near 84. Calm wind becoming west northwest around 6 mph in the afternoon. Chance of precipitation is 50%.

    High: 84 °F

    Mostly Sunny
    then Chance
    Showers

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 52. West wind around 6 mph becoming calm in the evening.

    Low: 52 °F

    Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 86. Calm wind becoming west around 6 mph in the afternoon.

    High: 86 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 55. Northwest wind around 6 mph becoming calm in the evening.

    Low: 55 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 93. Calm wind becoming east southeast around 5 mph in the afternoon.

    High: 93 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 54. Northwest wind 5 to 8 mph becoming calm in the evening.
Saturday
A 40 percent chance of showers and thunderstorms, mainly after 5pm. Increasing clouds, with a high near 88. Calm wind becoming north 5 to 8 mph in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Cloudy, then gradually becoming partly cloudy, with a low around 54. West southwest wind 5 to 9 mph becoming calm after midnight. Chance of precipitation is 20%.
Sunday
A chance of showers and thunderstorms between noon and 3pm, then a chance of showers after 3pm. Partly sunny, with a high near 84. Calm wind becoming west northwest around 6 mph in the afternoon. Chance of precipitation is 50%.
Sunday Night
A 30 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 52. West wind around 6 mph becoming calm in the evening.
Monday
Mostly sunny, with a high near 86. Calm wind becoming west around 6 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 55. Northwest wind around 6 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 93. Calm wind becoming east southeast around 5 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 56.
Wednesday
Sunny, with a high near 91.
Wednesday Night
Mostly clear, with a low around 55.
Thursday
Sunny, with a high near 86.
Thursday Night
Mostly clear, with a low around 52.
Friday
Sunny, with a high near 84.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Clancy MT
 46.46°N 111.99°W (Elev. 4400 ft)
Last Update:
2:22 pm MDT Aug 15, 2025
Forecast Valid:
3pm MDT Aug 15, 2025-6pm MDT Aug 22, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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