Severe Thunderstorms and Flooding from the Southern Plains to the Great Lakes; Record Heat in the East

Widely scattered severe thunderstorms may produce damaging winds, hail, and flash flooding from the southern Plains into the lower Great Lakes. Elevated to locally critical fire weather conditions will persist across portions of the Southwest and Southern High Plains due to gusty winds and dry conditions. An early-season heatwave will challenge temperature records across the eastern U.S.. Read More >

Current conditions at

Challis - Challis Airport (KLLJ)

Lat: 44.523°NLon: 114.21611°WElev: 5026.0ft.

Mostly Cloudy

61°F

16°C

Humidity 14%
Wind Speed NW 6 MPH
Barometer 30.08 in (1018.63 mb)
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Last update 19 May 03:35 PM MDT
Extended Forecast for

20 Miles WNW Mackay ID

  • This Afternoon

    This Afternoon: Isolated showers.  Mostly cloudy, with a high near 53. West southwest wind around 7 mph.  Chance of precipitation is 20%.

    High: 53 °F

    Isolated
    Showers

  • Tonight

    Tonight: A slight chance of rain and snow showers before 7pm.  Mostly cloudy, with a low around 32. West wind 5 to 7 mph becoming calm  in the evening.  Chance of precipitation is 20%.

    Low: 32 °F

    Isolated
    Rain/Snow
    then Partly
    Cloudy

  • Wednesday

    Wednesday: Isolated showers after 5pm.  Partly sunny, with a high near 57. Calm wind becoming west northwest 5 to 8 mph in the afternoon.  Chance of precipitation is 20%.

    High: 57 °F

    Mostly Sunny
    then Isolated
    Showers

  • Wednesday Night

    Wednesday Night: Scattered showers, mainly after midnight.  Mostly cloudy, with a low around 36. West northwest wind 6 to 11 mph.  Chance of precipitation is 40%.

    Low: 36 °F

    Scattered
    Showers

  • Thursday

    Thursday: Scattered rain and snow showers before noon.  Mostly sunny, with a high near 59. North wind 5 to 14 mph, with gusts as high as 20 mph.  Chance of precipitation is 30%. Little or no snow accumulation expected.

    High: 59 °F

    Scattered
    Rain/Snow
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 37.

    Low: 37 °F

    Partly Cloudy

  • Friday

    Friday: Isolated showers after noon.  Mostly sunny, with a high near 62. Chance of precipitation is 20%.

    High: 62 °F

    Mostly Sunny
    then Isolated
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

Detailed Forecast

This Afternoon
Isolated showers. Mostly cloudy, with a high near 53. West southwest wind around 7 mph. Chance of precipitation is 20%.
Tonight
A slight chance of rain and snow showers before 7pm. Mostly cloudy, with a low around 32. West wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 20%.
Wednesday
Isolated showers after 5pm. Partly sunny, with a high near 57. Calm wind becoming west northwest 5 to 8 mph in the afternoon. Chance of precipitation is 20%.
Wednesday Night
Scattered showers, mainly after midnight. Mostly cloudy, with a low around 36. West northwest wind 6 to 11 mph. Chance of precipitation is 40%.
Thursday
Scattered rain and snow showers before noon. Mostly sunny, with a high near 59. North wind 5 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Thursday Night
Partly cloudy, with a low around 37.
Friday
Isolated showers after noon. Mostly sunny, with a high near 62. Chance of precipitation is 20%.
Friday Night
Partly cloudy, with a low around 38.
Saturday
Sunny, with a high near 68.
Saturday Night
Partly cloudy, with a low around 40.
Sunday
Sunny, with a high near 70. Breezy.
Sunday Night
Partly cloudy, with a low around 42. Breezy.
Memorial Day
Sunny, with a high near 70. Windy.
Monday Night
Partly cloudy, with a low around 40. Windy.
Tuesday
Sunny, with a high near 64.
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ABOUT THIS FORECAST

 
Point Forecast:
20 Miles WNW Mackay ID
 44.01°N 114°W (Elev. 6588 ft)
12:21 pm MDT May 19, 2026
3pm MDT May 19, 2026-6pm MDT May 26, 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