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

Hot Temperatures in the Northwest U.S.; Excessive Rainfall Potential in the Southwest U.S.

Hot to extremely hot daytime temperatures remain in place across coastal southern California and the interior Northwest, with the Northwest carrying the potential for record-breaking high temperatures. A combination of monsoonal moisture and tropical moisture ahead of tropical cyclone Lorena will bring a marginal to slight risk of excessive rainfall across the southwest U.S. this week. Read More >

Hazardous Weather Conditions

Current conditions at

TROY (TROM8)

Lat: 48.48165°NLon: 115.90507°WElev: 2009.0ft.

NA

57°F

14°C

Humidity 65%
Wind Speed SSW 0 MPH
Barometer NA
Dewpoint 45°F (7°C)
Visibility NA
Last update 03 Sep 03:07 AM MDT
Extended Forecast for

Troy MT

Heat Advisory until September 4, 12:00am
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory until September 4, 12:00am

    NOW until 12:00am Thu

    Heat Advisory

  • Overnight

    Low: 57 °F

    Haze

  • Wednesday

    Wednesday: Widespread haze. Sunny and hot, with a high near 103. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 103 °F

    Haze

  • Wednesday Night

    Wednesday Night: Widespread haze. Mostly clear, with a low around 56. Light northwest wind.

    Low: 56 °F

    Haze

  • Thursday

    Thursday: Widespread haze before 9am, then widespread haze after noon. Areas of smoke between 9am and noon. Sunny, with a high near 93. Light east northeast wind increasing to 6 to 11 mph in the morning.

    High: 93 °F

    Haze

  • Thursday Night

    Thursday Night: Widespread haze before 7pm. Mostly clear, with a low around 49. East wind around 8 mph.

    Low: 49 °F

    Haze then
    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 93.

    High: 93 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 97.

    High: 97 °F

    Hot

Detailed Forecast

Overnight
Widespread haze. Mostly clear, with a low around 57. East northeast wind around 8 mph.
Wednesday
Widespread haze. Sunny and hot, with a high near 103. Calm wind becoming northwest around 6 mph in the afternoon.
Wednesday Night
Widespread haze. Mostly clear, with a low around 56. Light northwest wind.
Thursday
Widespread haze before 9am, then widespread haze after noon. Areas of smoke between 9am and noon. Sunny, with a high near 93. Light east northeast wind increasing to 6 to 11 mph in the morning.
Thursday Night
Widespread haze before 7pm. Mostly clear, with a low around 49. East wind around 8 mph.
Friday
Sunny, with a high near 93.
Friday Night
Mostly clear, with a low around 52.
Saturday
Sunny and hot, with a high near 97.
Saturday Night
A slight chance of showers. Mostly cloudy, with a low around 55.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 87.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 52.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 86.
Monday Night
A chance of showers. Mostly cloudy, with a low around 50.
Tuesday
A chance of showers. Mostly cloudy, with a high near 81.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Troy MT
 48.46°N 115.89°W (Elev. 1948 ft)
Last Update:
3:30 am MDT Sep 3, 2025
Forecast Valid:
4am MDT Sep 3, 2025-6pm MDT Sep 9, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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