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

Flooding Risks from Tropical Moisture Across the Intermountain West and East Coast

Tropical moisture from Isaias and Rachel will impact portions of the Intermountain West and East Coast states. Flooding, gusty winds and even a threat for severe thunderstorms and tornadoes are possible. Meanwhile, record warmth will spread northward across the Mississippi Valley the next few days. Looking for snow, the first winter storm of the season is underway across the northern Rockies. Read More >

Current conditions at

BUFFALO RAPIDS/TERRY (BRTM)

Lat: 46.77806°NLon: 105.29944°WElev: 2270.0ft.

NA

43°F

6°C

Humidity 93%
Wind Speed NNE 5 MPH
Barometer NA
Dewpoint 41°F (5°C)
Visibility NA
Wind Chill40°F (4°C)
Last update 11 Oct 07:30 AM MDT
Extended Forecast for

Fallon MT

  • Today

    Today: Rain. Patchy fog before 9am, then patchy fog after 10am. High near 49. Northeast wind 10 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.

    High: 49 °F

    Rain and
    Patchy Fog

  • Tonight

    Tonight: Rain. Patchy fog. Low around 35. East northeast wind 11 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 100%.

    Low: 35 °F

    Rain and
    Patchy Fog

  • Columbus Day

    Columbus Day: Rain, mainly before 3pm. Patchy fog before 7am. High near 46. Northeast wind 8 to 10 mph becoming north northwest in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 90%.

    High: 46 °F

    Rain and
    Patchy Fog
    then Rain
    Likely

  • Monday Night

    Monday Night: Cloudy, with a low around 32. Northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 32 °F

    Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 55. Light south southwest wind.

    High: 55 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 32. Calm wind.

    Low: 32 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 59. Calm wind becoming south around 5 mph in the afternoon.

    High: 59 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 37. Light and variable wind becoming south around 5 mph in the evening.

    Low: 37 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 58. Northwest wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 32 mph.

    High: 58 °F

    Mostly Sunny

Detailed Forecast

Today
Rain. Patchy fog before 9am, then patchy fog after 10am. High near 49. Northeast wind 10 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
Tonight
Rain. Patchy fog. Low around 35. East northeast wind 11 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 100%.
Columbus Day
Rain, mainly before 3pm. Patchy fog before 7am. High near 46. Northeast wind 8 to 10 mph becoming north northwest in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 90%.
Monday Night
Cloudy, with a low around 32. Northwest wind 5 to 7 mph becoming calm in the evening.
Tuesday
Partly sunny, with a high near 55. Light south southwest wind.
Tuesday Night
Partly cloudy, with a low around 32. Calm wind.
Wednesday
Mostly sunny, with a high near 59. Calm wind becoming south around 5 mph in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 37. Light and variable wind becoming south around 5 mph in the evening.
Thursday
Mostly sunny, with a high near 58. Northwest wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 32 mph.
Thursday Night
Partly cloudy, with a low around 31. Northwest wind 5 to 14 mph, with gusts as high as 29 mph.
Friday
Sunny, with a high near 57. Northwest wind 3 to 7 mph.
Friday Night
Mostly clear, with a low around 33.
Saturday
Sunny, with a high near 68.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Fallon MT
 46.85°N 105.12°W (Elev. 2175 ft)
Last Update:
3:11 am MDT Oct 11, 2026
Forecast Valid:
8am MDT Oct 11, 2026-6pm MDT Oct 17, 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