Snow Squalls May Impact New Year's Eve Travel from the Great Lakes to the Mid-Atlantic; Heavy Rain & Isolated Severe Thunderstorms in Southern California

Snow squalls are likely to cross the Lower Great Lakes this evening and the Ohio Valley through the interior Northeast/northern Mid-Atlantic overnight, before potentially reaching the I-95 corridor from D.C. to New York City early New Year’s Day morning. Heavy rain and isolated severe thunderstorms will impact coastal southern California including Los Angeles tonight into early on New Year's Day. Read More >

Current conditions at

ROCKY BOY (ROCM8)

Lat: 48.17478°NLon: 109.64728°WElev: 4700.0ft.

NA

45°F

7°C

Humidity NA
Wind Speed NA NA MPH
Barometer NA
Dewpoint N/A
Visibility NA
Last update NA
Extended Forecast for

21 Miles S Lloyd MT

  • Tonight

    Tonight: Mostly clear, with a low around 27. West wind 3 to 7 mph.

    Low: 27 °F

    Mostly Clear

  • New Year's Day

    New Year's Day: Mostly sunny, with a high near 38. Calm wind becoming southeast around 5 mph.

    High: 38 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Increasing clouds, with a steady temperature around 29. Light and variable wind.

    Low: 29 °F

    Increasing
    Clouds

  • Friday

    Friday: Partly sunny, with a high near 40. West wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 40 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 24. West wind 6 to 9 mph, with gusts as high as 18 mph.

    Low: 24 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 35. East southeast wind around 6 mph.

    High: 35 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 30. East wind 5 to 7 mph becoming west southwest after midnight.

    Low: 30 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 44. West wind 8 to 10 mph, with gusts as high as 21 mph.

    High: 44 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 28.

    Low: 28 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 27. West wind 3 to 7 mph.
New Year's Day
Mostly sunny, with a high near 38. Calm wind becoming southeast around 5 mph.
Thursday Night
Increasing clouds, with a steady temperature around 29. Light and variable wind.
Friday
Partly sunny, with a high near 40. West wind 5 to 10 mph, with gusts as high as 20 mph.
Friday Night
Mostly cloudy, with a low around 24. West wind 6 to 9 mph, with gusts as high as 18 mph.
Saturday
Partly sunny, with a high near 35. East southeast wind around 6 mph.
Saturday Night
Mostly cloudy, with a low around 30. East wind 5 to 7 mph becoming west southwest after midnight.
Sunday
Partly sunny, with a high near 44. West wind 8 to 10 mph, with gusts as high as 21 mph.
Sunday Night
Mostly cloudy, with a low around 28.
Monday
Mostly sunny, with a high near 42.
Monday Night
Partly cloudy, with a low around 26.
Tuesday
Mostly sunny, with a high near 40.
Tuesday Night
Mostly cloudy, with a low around 28.
Wednesday
Partly sunny, with a high near 38.
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ABOUT THIS FORECAST

 
Point Forecast:
21 Miles S Lloyd MT
 47.98°N 109.35°W (Elev. 3766 ft)
4:13 pm MST Dec 31, 2025
5pm MST Dec 31, 2025-6pm MST Jan 7, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database