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

Hawaii and Guam Concerns; Severe Weather for the Plains; Heavy Snow for Sierra-Nevada

Heavy rainfall capable of causing flash flooding will continue to impact Hawaii through Monday. Severe thunderstorms and heavy rain are possible in parts of Texas and the southern Plains and the Upper Great Lakes. Heavy mountain snow continues in California's Sierra Nevada and rain with gusty winds to lower elevations. Super Typhoon Sinlaku will impact the Marianas through midweek. Read More >

Current conditions at

EUREKA (EURM8)

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

NA

50°F

10°C

Humidity 78%
Wind Speed ESE 1 MPH
Barometer NA
Dewpoint 43°F (6°C)
Visibility NA
Last update 12 Apr 10:15 PM MDT
Extended Forecast for

Eureka MT

  • Tonight

    Tonight: A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 40. Calm wind.

    Low: 40 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Monday

    Monday: A chance of rain before 3pm, then a chance of showers and thunderstorms between 3pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Partly sunny, with a high near 62. Calm wind becoming southwest 5 to 7 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 62 °F

    Mostly Cloudy
    then Showers
    Likely

  • Monday Night

    Monday Night: A 50 percent chance of rain, mainly before midnight. Mostly cloudy, with a low around 39. South wind around 7 mph.

    Low: 39 °F

    Chance Rain
    then Slight
    Chance Rain

  • Tuesday

    Tuesday: A 30 percent chance of rain, mainly after noon. Snow level 3700 feet rising to 4400 feet in the afternoon. Mostly cloudy, with a high near 51. Southwest wind 6 to 9 mph, with gusts as high as 21 mph.

    High: 51 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: Rain. Snow level 4500 feet lowering to 3700 feet after midnight . Low around 37. South southwest wind 6 to 9 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 37 °F

    Rain Likely
    then Rain

  • Wednesday

    Wednesday: Rain before 9am, then rain and snow between 9am and noon, then snow likely after noon. Snow level 3200 feet lowering to 2800 feet in the afternoon . High near 50. Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 50 °F

    Rain/Snow
    then Snow
    Likely

  • Wednesday Night

    Wednesday Night: A chance of rain and snow before 9pm, then a chance of snow. Mostly cloudy, with a low around 29. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    Low: 29 °F

    Chance
    Rain/Snow
    then Chance
    Snow

  • Thursday

    Thursday: A chance of snow. Mostly cloudy, with a high near 48.

    High: 48 °F

    Chance Snow

  • Thursday Night

    Thursday Night: A slight chance of snow before midnight. Partly cloudy, with a low around 27.

    Low: 27 °F

    Slight Chance
    Snow then
    Partly Cloudy

Detailed Forecast

Tonight
A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 40. Calm wind.
Monday
A chance of rain before 3pm, then a chance of showers and thunderstorms between 3pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Partly sunny, with a high near 62. Calm wind becoming southwest 5 to 7 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
A 50 percent chance of rain, mainly before midnight. Mostly cloudy, with a low around 39. South wind around 7 mph.
Tuesday
A 30 percent chance of rain, mainly after noon. Snow level 3700 feet rising to 4400 feet in the afternoon. Mostly cloudy, with a high near 51. Southwest wind 6 to 9 mph, with gusts as high as 21 mph.
Tuesday Night
Rain. Snow level 4500 feet lowering to 3700 feet after midnight . Low around 37. South southwest wind 6 to 9 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Rain before 9am, then rain and snow between 9am and noon, then snow likely after noon. Snow level 3200 feet lowering to 2800 feet in the afternoon . High near 50. Chance of precipitation is 80%. Little or no snow accumulation expected.
Wednesday Night
A chance of rain and snow before 9pm, then a chance of snow. Mostly cloudy, with a low around 29. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Thursday
A chance of snow. Mostly cloudy, with a high near 48.
Thursday Night
A slight chance of snow before midnight. Partly cloudy, with a low around 27.
Friday
A slight chance of snow between noon and 3pm, then a slight chance of rain after 3pm. Mostly sunny, with a high near 53.
Friday Night
Partly cloudy, with a low around 29.
Saturday
Mostly sunny, with a high near 58.
Saturday Night
Partly cloudy, with a low around 33.
Sunday
A slight chance of rain. Partly sunny, with a high near 61.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Eureka MT
 48.88°N 115.06°W (Elev. 2818 ft)
Last Update:
2:01 pm MDT Apr 12, 2026
Forecast Valid:
10pm MDT Apr 12, 2026-6pm MDT Apr 19, 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