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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

Glasgow, Glasgow International Airport (KGGW)

Lat: 48.21389°NLon: 106.62139°WElev: 2293.0ft.

Clear

86°F

30°C

Humidity 32%
Wind Speed NA NA MPH
Barometer 29.9 in (1012.53 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 17 Aug 12:53 PM MDT
Extended Forecast for

10 Miles N Nashua MT

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms before 2pm. Sunny, with a high near 88. West northwest wind around 7 mph.

    High: 88 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms before 2am, then a slight chance of showers after 3am. Increasing clouds, with a low around 61. West wind 5 to 7 mph becoming light and variable after midnight. Chance of precipitation is 30%.

    Low: 61 °F

    Chance
    T-storms

  • Monday

    Monday: A slight chance of showers, with thunderstorms also possible after noon. Mostly sunny, with a high near 89. South southeast wind 3 to 8 mph. Chance of precipitation is 20%.

    High: 89 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: Mostly clear, with a low around 63. East wind 6 to 8 mph.

    Low: 63 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 97. East wind 5 to 9 mph.

    High: 97 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 67. East wind 7 to 9 mph.

    Low: 67 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 99. East wind 7 to 10 mph becoming south in the afternoon. Winds could gust as high as 18 mph.

    High: 99 °F

    Hot

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 63. West wind 7 to 10 mph becoming north after midnight. Winds could gust as high as 18 mph.

    Low: 63 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 82. Northwest wind 10 to 14 mph, with gusts as high as 23 mph.

    High: 82 °F

    Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms before 2pm. Sunny, with a high near 88. West northwest wind around 7 mph.
Tonight
A chance of showers and thunderstorms before 2am, then a slight chance of showers after 3am. Increasing clouds, with a low around 61. West wind 5 to 7 mph becoming light and variable after midnight. Chance of precipitation is 30%.
Monday
A slight chance of showers, with thunderstorms also possible after noon. Mostly sunny, with a high near 89. South southeast wind 3 to 8 mph. Chance of precipitation is 20%.
Monday Night
Mostly clear, with a low around 63. East wind 6 to 8 mph.
Tuesday
Sunny and hot, with a high near 97. East wind 5 to 9 mph.
Tuesday Night
Mostly clear, with a low around 67. East wind 7 to 9 mph.
Wednesday
Sunny and hot, with a high near 99. East wind 7 to 10 mph becoming south in the afternoon. Winds could gust as high as 18 mph.
Wednesday Night
Partly cloudy, with a low around 63. West wind 7 to 10 mph becoming north after midnight. Winds could gust as high as 18 mph.
Thursday
Sunny, with a high near 82. Northwest wind 10 to 14 mph, with gusts as high as 23 mph.
Thursday Night
Mostly clear, with a low around 53. North wind 6 to 13 mph, with gusts as high as 21 mph.
Friday
Sunny, with a high near 78. North northwest wind 6 to 10 mph.
Friday Night
Mostly clear, with a low around 51.
Saturday
Sunny, with a high near 78.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
10 Miles N Nashua MT
 48.27°N 106.38°W (Elev. 2398 ft)
Last Update:
2:28 am MDT Aug 17, 2025
Forecast Valid:
1pm MDT Aug 17, 2025-6pm MDT Aug 23, 2025
 
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