Extreme Heat and Excessive Rainfall Today

Dangerous and extreme heat will remain across portions of the southern U.S. through the weekend. A heat wave over the Southwest U.S. will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Multiple rounds of thunderstorms will produce heavy to excessive rainfall with significant flash flooding across portions of southern New England. Read More >

Hazardous Weather Conditions

Current conditions at

Salmon, Lemhi County Airport (KSMN)

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

Clear

70°F

21°C

Humidity 40%
Wind Speed NNE 5 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 30 Jul 12:00 AM MDT
Extended Forecast for

18 Miles NE Challis ID

  • Overnight

    Overnight: Mostly clear, with a low around 58. West southwest wind around 5 mph becoming calm.

    Low: 58 °F

    Mostly Clear

  • Thursday

    Thursday: A slight chance of rain between 2pm and 3pm, then a slight chance of showers and thunderstorms after 3pm.  Patchy smoke between 11am and 5pm. Increasing clouds, with a high near 91. Light south wind becoming south southwest 5 to 10 mph in the afternoon. Winds could gust as high as 18 mph.  Chance of precipitation is 20%.

    High: 91 °F

    Patchy Smoke
    then Slight
    Chance
    T-storms

  • Thursday Night

    Thursday Night: Patchy smoke before 10pm, then patchy smoke after midnight. Partly cloudy, with a low around 58. West southwest wind 5 to 8 mph becoming calm  after midnight.

    Low: 58 °F

    Patchy Smoke

  • Friday

    Friday: Patchy smoke before 7am. Sunny, with a high near 95. Calm wind becoming south southwest around 5 mph in the afternoon.

    High: 95 °F

    Patchy Smoke
    then Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 61. South wind around 5 mph becoming calm  after midnight.

    Low: 61 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 99.

    High: 99 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 57. Breezy.

    Low: 57 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Sunday

    Sunday: Sunny, with a high near 90. Breezy.

    High: 90 °F

    Sunny then
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Clear, with a low around 51. Breezy.

    Low: 51 °F

    Clear and
    Breezy then
    Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 58. West southwest wind around 5 mph becoming calm.
Thursday
A slight chance of rain between 2pm and 3pm, then a slight chance of showers and thunderstorms after 3pm. Patchy smoke between 11am and 5pm. Increasing clouds, with a high near 91. Light south wind becoming south southwest 5 to 10 mph in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 20%.
Thursday Night
Patchy smoke before 10pm, then patchy smoke after midnight. Partly cloudy, with a low around 58. West southwest wind 5 to 8 mph becoming calm after midnight.
Friday
Patchy smoke before 7am. Sunny, with a high near 95. Calm wind becoming south southwest around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 61. South wind around 5 mph becoming calm after midnight.
Saturday
Sunny and hot, with a high near 99.
Saturday Night
Mostly clear, with a low around 57. Breezy.
Sunday
Sunny, with a high near 90. Breezy.
Sunday Night
Clear, with a low around 51. Breezy.
Monday
Sunny, with a high near 85.
Monday Night
Clear, with a low around 51.
Tuesday
Sunny, with a high near 89.
Tuesday Night
Mostly clear, with a low around 55.
Wednesday
Sunny, with a high near 93.
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ABOUT THIS FORECAST

 
Point Forecast:
18 Miles NE Challis ID
 44.72°N 114.02°W (Elev. 4846 ft)
2:01 pm MDT Jul 29, 2026
12am MDT Jul 30, 2026-6pm MDT Aug 5, 2026
 
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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