Heavy Rain in the Southern Appalachians; Heat Continues in the West; Monitoring Tropical Storm Erin

Heavy to excessive rain falling over the southern Appalachians may bring areas of flooding into Wednesday. Hot temperatures are in place through Wednesday across parts of the western U.S. and New England. Tropical Storm Erin is forecast to become a Hurricane by late this week as it moves westward across the central Atlantic Ocean. Monitor forecasts for any Puerto Rico or U.S. East Coast impacts. Read More >

Current conditions at

Salmon, Lemhi County Airport (KSMN)

Lat: 45.11667°NLon: 113.88333°WElev: 4045.0ft.

Rain

59°F

15°C

Humidity 72%
Wind Speed E 6 MPH
Barometer 29.96 in (1014.56 mb)
Dewpoint 50°F (10°C)
Visibility 7.00 mi
Last update 13 Aug 04:20 AM MDT
Extended Forecast for

10 Miles SE Salmon ID

Red Flag Warning August 13, 12:00pm until August 13, 10:00pm
Click here for hazard details and duration
Red Flag Warning
  • Overnight

    Overnight: A 20 percent chance of showers.  Mostly clear, with a low around 56. East southeast wind around 5 mph.

    Low: 56 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: Sunny, with a high near 93. Breezy, with a light and variable wind becoming west 17 to 22 mph in the morning. Winds could gust as high as 34 mph.

    High: 93 °F

    Sunny then
    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 52. Breezy, with a west wind 19 to 24 mph becoming light and variable  after midnight. Winds could gust as high as 37 mph.

    Low: 52 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Thursday

    Thursday: Sunny, with a high near 90. Light and variable wind becoming west 12 to 17 mph in the afternoon. Winds could gust as high as 28 mph.

    High: 90 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 51. West wind 15 to 20 mph becoming light and variable  after midnight. Winds could gust as high as 30 mph.

    Low: 51 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

  • Friday Night

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

    Low: 52 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 53.

    Low: 53 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of showers. Mostly clear, with a low around 56. East southeast wind around 5 mph.
Wednesday
Sunny, with a high near 93. Breezy, with a light and variable wind becoming west 17 to 22 mph in the morning. Winds could gust as high as 34 mph.
Wednesday Night
Mostly clear, with a low around 52. Breezy, with a west wind 19 to 24 mph becoming light and variable after midnight. Winds could gust as high as 37 mph.
Thursday
Sunny, with a high near 90. Light and variable wind becoming west 12 to 17 mph in the afternoon. Winds could gust as high as 28 mph.
Thursday Night
Mostly clear, with a low around 51. West wind 15 to 20 mph becoming light and variable after midnight. Winds could gust as high as 30 mph.
Friday
Sunny, with a high near 89.
Friday Night
Mostly clear, with a low around 52.
Saturday
Sunny, with a high near 88.
Saturday Night
Mostly cloudy, with a low around 53.
Sunday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 87.
Sunday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 52.
Monday
Sunny, with a high near 88.
Monday Night
Mostly clear, with a low around 52.
Tuesday
Sunny, with a high near 89.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles SE Salmon ID
 45.1°N 113.73°W (Elev. 4405 ft)
3:30 am MDT Aug 13, 2025
4am MDT Aug 13, 2025-6pm MDT Aug 19, 2025
 
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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