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 >

Current conditions at

Hailey, Friedman Memorial Airport (KSUN)

Lat: 43.5°NLon: 114.3°WElev: 5318.0ft.

Clear

84°F

29°C

Humidity 30%
Wind Speed S 11 MPH
Barometer 29.98 in (1015.24 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 29 Jul 06:47 PM MDT
Extended Forecast for

Lost River ID

Red Flag Warning until July 29, 09:00pm
Click here for hazard details and duration
...
  •  
    Red Flag Warning until July 29, 09:00pm

    NOW until 9:00pm Wed

    Red Flag Warning

  • Tonight

    Low: 51 °F

    Chance
    Showers then
    Mostly Clear

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after noon.  Sunny, with a high near 88. Light and variable wind becoming south southeast 5 to 10 mph in the afternoon.

    High: 88 °F

    Sunny then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: Patchy smoke after 5am. Partly cloudy, with a low around 53. Northwest wind 3 to 7 mph.

    Low: 53 °F

    Partly Cloudy
    then Patchy
    Smoke

  • Friday

    Friday: Patchy smoke before 7am. Sunny, with a high near 90. Northwest wind 5 to 10 mph becoming east southeast in the afternoon.

    High: 90 °F

    Patchy Smoke
    then Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 55. South wind 5 to 10 mph becoming light and variable  after midnight.

    Low: 55 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 95.

    High: 95 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 54. Breezy.

    Low: 54 °F

    Clear and
    Breezy then
    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 89. Breezy.

    High: 89 °F

    Sunny then
    Sunny and
    Breezy

Detailed Forecast

Tonight
A 50 percent chance of showers and thunderstorms before 9pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 51. East southeast wind 5 to 8 mph becoming calm in the evening.
Thursday
A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 88. Light and variable wind becoming south southeast 5 to 10 mph in the afternoon.
Thursday Night
Patchy smoke after 5am. Partly cloudy, with a low around 53. Northwest wind 3 to 7 mph.
Friday
Patchy smoke before 7am. Sunny, with a high near 90. Northwest wind 5 to 10 mph becoming east southeast in the afternoon.
Friday Night
Mostly clear, with a low around 55. South wind 5 to 10 mph becoming light and variable after midnight.
Saturday
Sunny, with a high near 95.
Saturday Night
Mostly clear, with a low around 54. Breezy.
Sunday
Sunny, with a high near 89. Breezy.
Sunday Night
Clear, with a low around 48. Breezy.
Monday
Sunny, with a high near 83.
Monday Night
Mostly clear, with a low around 48.
Tuesday
Sunny, with a high near 87.
Tuesday Night
Mostly clear, with a low around 51.
Wednesday
Sunny, with a high near 90.
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ABOUT THIS FORECAST

 
Point Forecast:
Lost River ID
 43.73°N 113.56°W (Elev. 6230 ft)
5:31 pm MDT Jul 29, 2026
7pm MDT Jul 29, 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