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Flooding Risks from Tropical Moisture Across the Southeast and Southwest

Tropical moisture from Isaias and Rachel will impact portions of the Southeast and Southwest this weekend. Flash flooding, strong winds and even a threat for severe thunderstorms and tornadoes are possible. Meanwhile, strong winds and dry fuels are raising fire weather concerns across the central Great Basin and western High Plains. Across the northern Rockies, first winter storm of the season. Read More >

Hazardous Weather Conditions

Current conditions at

JUDITH PEAK (JPKM8)

Lat: 47.21753°NLon: 109.22281°WElev: 6428.0ft.

NA

39°F

4°C

Humidity 80%
Wind Speed NNW 9 MPH
Barometer NA
Dewpoint 33°F (1°C)
Visibility NA
Wind Chill33°F (1°C)
Last update 10 Oct 11:52 AM MDT
Extended Forecast for

Roy MT

Winter Weather Advisory October 10, 06:00pm until October 12, 06:00am
Click here for hazard details and duration
Winter Weather Advisory

  • This Afternoon

    This Afternoon: Rain, mainly after 5pm. Temperature falling to around 46 by 5pm. North wind 13 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 80%.

    High: 54 °F⇓

    Rain

  • Tonight

    Tonight: Rain before 10pm, then rain and snow between 10pm and 1am, then snow after 1am. Low around 32. North wind 13 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

    Low: 32 °F

    Rain/Snow

  • Sunday

    Sunday: Snow. High near 35. Northeast wind 11 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

    High: 35 °F

    Snow

  • Sunday Night

    Sunday Night: Snow. Low around 28. North northeast wind 10 to 13 mph, with gusts as high as 18 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

    Low: 28 °F

    Snow

  • Columbus Day

    Columbus Day: Rain and snow before noon, then a chance of snow between noon and 3pm, then a chance of rain and snow after 3pm. High near 35. North wind 5 to 10 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 35 °F

    Rain/Snow
    then Chance
    Rain/Snow

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 26. South wind 3 to 7 mph.

    Low: 26 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 47. West southwest wind 3 to 5 mph.

    High: 47 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 32. South southwest wind 3 to 7 mph.

    Low: 32 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 55.

    High: 55 °F

    Sunny

Detailed Forecast

This Afternoon
Rain, mainly after 5pm. Temperature falling to around 46 by 5pm. North wind 13 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 80%.
Tonight
Rain before 10pm, then rain and snow between 10pm and 1am, then snow after 1am. Low around 32. North wind 13 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Sunday
Snow. High near 35. Northeast wind 11 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.
Sunday Night
Snow. Low around 28. North northeast wind 10 to 13 mph, with gusts as high as 18 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.
Columbus Day
Rain and snow before noon, then a chance of snow between noon and 3pm, then a chance of rain and snow after 3pm. High near 35. North wind 5 to 10 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Monday Night
Mostly cloudy, with a low around 26. South wind 3 to 7 mph.
Tuesday
Mostly sunny, with a high near 47. West southwest wind 3 to 5 mph.
Tuesday Night
Mostly clear, with a low around 32. South southwest wind 3 to 7 mph.
Wednesday
Sunny, with a high near 55.
Wednesday Night
Partly cloudy, with a low around 38.
Thursday
Mostly sunny, with a high near 55.
Thursday Night
Partly cloudy, with a low around 36.
Friday
Sunny, with a high near 58.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Roy MT
 47.33°N 108.97°W (Elev. 3566 ft)
Last Update:
12:32 pm MDT Oct 10, 2026
Forecast Valid:
12pm MDT Oct 10, 2026-6pm MDT Oct 16, 2026
 
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