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

Autumn Temperatures for Eastern Third of the Country; Super Typhoon Approaching Guam

Cooler and less humid conditions for the eastern third of the nation as a cold slides off the east coast. Combination of dry and breezy conditions may result in spread of wildfires across the lower Mississippi Valley. In addition, fire weather conditions linger into portions of Southern California. For Guam, a super typhoon is approaching. Read More >

Current conditions at

EUREKA (EURM8)

Lat: 48.89781°NLon: 115.05836°WElev: 2632.0ft.

NA

32°F

0°C

Humidity 90%
Wind Speed S 1 MPH
Barometer NA
Dewpoint 29°F (-2°C)
Visibility NA
Last update 17 Oct 06:15 AM MDT
Extended Forecast for

3 Miles WSW Eureka MT

  • Today

    Today: Mostly sunny, with a high near 63. South southwest wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 63 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 36. West southwest wind 6 to 11 mph becoming light and variable in the evening. Winds could gust as high as 25 mph.

    Low: 36 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 58. Calm wind.

    High: 58 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 36. Calm wind.

    Low: 36 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 59. Calm wind.

    High: 59 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 58.

    High: 58 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 35.

    Low: 35 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 63. South southwest wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Tonight
Mostly clear, with a low around 36. West southwest wind 6 to 11 mph becoming light and variable in the evening. Winds could gust as high as 25 mph.
Sunday
Sunny, with a high near 58. Calm wind.
Sunday Night
Mostly cloudy, with a low around 36. Calm wind.
Monday
Partly sunny, with a high near 59. Calm wind.
Monday Night
Mostly cloudy, with a low around 40.
Tuesday
Partly sunny, with a high near 58.
Tuesday Night
Partly cloudy, with a low around 35.
Wednesday
Sunny, with a high near 60.
Wednesday Night
Mostly clear, with a low around 37.
Thursday
Mostly sunny, with a high near 60.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 38.
Friday
A chance of rain and snow. Partly sunny, with a high near 49.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Eureka MT
 48.85°N 115.12°W (Elev. 3451 ft)
Last Update:
2:01 am MDT Oct 17, 2026
Forecast Valid:
6am MDT Oct 17, 2026-6pm MDT Oct 23, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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National Digital Forecast Database Weather Element Forecast

Chance of Precipitation