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Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

Current conditions at

Sweetgrass I-15 MP 395.3 (MTSWT)

Lat: 48.96017°NLon: 111.94071°WElev: 3471.0ft.

NA

67°F

19°C

Humidity 35%
Wind Speed NNW 5 MPH
Barometer NA
Dewpoint 38°F (3°C)
Visibility NA
Last update 17 Aug 11:15 PM MDT
Extended Forecast for

10 Miles N Santa Rita MT

  • Tonight

    Tonight: Mostly clear, with a low around 51. West wind around 7 mph.

    Low: 51 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 81. South southwest wind 6 to 13 mph, with gusts as high as 21 mph.

    High: 81 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 55. West southwest wind 6 to 13 mph becoming north northwest in the evening. Winds could gust as high as 21 mph.

    Low: 55 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 87. West wind 6 to 10 mph becoming south in the afternoon. Winds could gust as high as 20 mph.

    High: 87 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 58. West wind 6 to 13 mph, with gusts as high as 21 mph.

    Low: 58 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 85. West wind 9 to 15 mph, with gusts as high as 26 mph.

    High: 85 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 50. West wind 10 to 18 mph, with gusts as high as 29 mph.

    Low: 50 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 73. North northwest wind 8 to 10 mph.

    High: 73 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 51. West wind around 7 mph.
Monday
Mostly sunny, with a high near 81. South southwest wind 6 to 13 mph, with gusts as high as 21 mph.
Monday Night
Mostly clear, with a low around 55. West southwest wind 6 to 13 mph becoming north northwest in the evening. Winds could gust as high as 21 mph.
Tuesday
Sunny, with a high near 87. West wind 6 to 10 mph becoming south in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around 58. West wind 6 to 13 mph, with gusts as high as 21 mph.
Wednesday
Sunny, with a high near 85. West wind 9 to 15 mph, with gusts as high as 26 mph.
Wednesday Night
Mostly clear, with a low around 50. West wind 10 to 18 mph, with gusts as high as 29 mph.
Thursday
Sunny, with a high near 73. North northwest wind 8 to 10 mph.
Thursday Night
Partly cloudy, with a low around 48.
Friday
Sunny, with a high near 70.
Friday Night
Mostly clear, with a low around 47.
Saturday
Sunny, with a high near 75.
Saturday Night
Mostly clear, with a low around 50.
Sunday
Sunny, with a high near 76.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles N Santa Rita MT
 48.92°N 112.33°W (Elev. 4101 ft)
Last Update:
8:43 pm MDT Aug 17, 2025
Forecast Valid:
11pm MDT Aug 17, 2025-6pm MDT Aug 24, 2025
 
Forecast Discussion
 
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Additional Resources

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