Heat Across the Center of the Nation; Severe Thunderstorms Across the Great Lakes and Ohio Valley

Heat expands across the Desert Southwest, Plains, Mississippi Valley and Midwest into Monday. Fire weather concerns continue for portions of the Intermountain West. Active monsoonal moisture fuels thunderstorms over the Southwest with possible flash flooding. Tropical cyclone Fausto in the Pacific, should weaken as it approaches Hawaii; Dangerous surf, swells and rip currents are expected. Read More >

Hazardous Weather Conditions

Current conditions at

Sieben I-15 MP 216 (MTSBN)

Lat: 46.88748267°NLon: 112.1111196°WElev: 4199.0ft.

NA

92°F

33°C

Humidity 18%
Wind Speed ESE 5 MPH
Barometer NA
Dewpoint 43°F (6°C)
Visibility NA
Heat Index88°F (31°C)
Last update 26 Jul 05:16 PM MDT
Extended Forecast for

2 Miles WNW Marysville MT

  • Tonight

    Tonight: Patchy smoke. Mostly clear, with a low around 61. West wind 6 to 8 mph.

    Low: 61 °F

    Patchy Smoke

  • Monday

    Monday: Areas of smoke. Sunny, with a high near 83. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 83 °F

    Areas Smoke

  • Monday Night

    Monday Night: Areas of smoke. Mostly clear, with a low around 60. West wind 6 to 8 mph.

    Low: 60 °F

    Areas Smoke

  • Tuesday

    Tuesday: Areas of smoke before 7am. Sunny, with a high near 82. Light west wind increasing to 5 to 9 mph in the afternoon.

    High: 82 °F

    Areas Smoke
    then Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 59. West wind 7 to 9 mph.

    Low: 59 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 81. West wind 5 to 8 mph becoming east southeast in the afternoon.

    High: 81 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 61. West wind 5 to 8 mph.

    Low: 61 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 84. Calm wind becoming west 5 to 9 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 84 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy smoke. Mostly clear, with a low around 61. West wind 6 to 8 mph.
Monday
Areas of smoke. Sunny, with a high near 83. Calm wind becoming west 5 to 7 mph in the afternoon.
Monday Night
Areas of smoke. Mostly clear, with a low around 60. West wind 6 to 8 mph.
Tuesday
Areas of smoke before 7am. Sunny, with a high near 82. Light west wind increasing to 5 to 9 mph in the afternoon.
Tuesday Night
Clear, with a low around 59. West wind 7 to 9 mph.
Wednesday
Sunny, with a high near 81. West wind 5 to 8 mph becoming east southeast in the afternoon.
Wednesday Night
Mostly clear, with a low around 61. West wind 5 to 8 mph.
Thursday
Sunny, with a high near 84. Calm wind becoming west 5 to 9 mph in the afternoon. Winds could gust as high as 18 mph.
Thursday Night
Mostly clear, with a low around 62.
Friday
Sunny, with a high near 86.
Friday Night
Mostly clear, with a low around 63.
Saturday
Sunny, with a high near 86.
Saturday Night
Mostly clear, with a low around 60.
Sunday
Sunny, with a high near 76.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WNW Marysville MT
 46.77°N 112.33°W (Elev. 6099 ft)
3:52 pm MDT Jul 26, 2026
5pm MDT Jul 26, 2026-6pm MDT Aug 2, 2026
 
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Additional Resources

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