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

Heavy Rainfall in the Southern Plains and Mississippi Valley; Thunderstorms in Eastern Colorado on Thursday

A multiple day heavy rainfall event will begin to set up from the Southern Plains into the Mississippi Valley Thursday, peaking in intensity over the holiday weekend. Widely scattered thunderstorms are expected to develop across eastern Colorado Thursday afternoon and evening. Large hail will be the primary hazard. Read More >

Current conditions at

Challis - Challis Airport (KLLJ)

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

Mostly Cloudy

41°F

5°C

Humidity 75%
Wind Speed NW 5 MPH
Barometer 30.04 in (1017.27 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 21 May 05:35 AM MDT
Extended Forecast for

19 Miles NW Mackay ID

  • Today

    Today: Mostly sunny, with a high near 52. North wind 8 to 18 mph, with gusts as high as 25 mph.

    High: 52 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 36. North wind 5 to 10 mph becoming light and variable.

    Low: 36 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 57. Southeast wind around 6 mph becoming west in the afternoon.

    High: 57 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 39. Southwest wind around 6 mph becoming calm in the evening.

    Low: 39 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 69. Light south southwest wind becoming west 8 to 13 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 69 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

  • Memorial Day

    Memorial Day: Sunny, with a high near 68. Windy.

    High: 68 °F

    Sunny then
    Mostly Sunny
    and Windy

Detailed Forecast

Today
Mostly sunny, with a high near 52. North wind 8 to 18 mph, with gusts as high as 25 mph.
Tonight
Partly cloudy, with a low around 36. North wind 5 to 10 mph becoming light and variable.
Friday
Partly sunny, with a high near 57. Southeast wind around 6 mph becoming west in the afternoon.
Friday Night
Partly cloudy, with a low around 39. Southwest wind around 6 mph becoming calm in the evening.
Saturday
Sunny, with a high near 69. Light south southwest wind becoming west 8 to 13 mph in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
Partly cloudy, with a low around 46.
Sunday
Mostly sunny, with a high near 69.
Sunday Night
Mostly clear, with a low around 43.
Memorial Day
Sunny, with a high near 68. Windy.
Monday Night
Partly cloudy, with a low around 43. Breezy.
Tuesday
A 30 percent chance of rain. Mostly sunny, with a high near 61. Breezy.
Tuesday Night
A chance of rain and snow. Mostly cloudy, with a low around 38. Chance of precipitation is 50%.
Wednesday
A chance of rain showers and snow. Some thunder is also possible. Partly sunny, with a high near 57. Chance of precipitation is 40%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
19 Miles NW Mackay ID
 44.13°N 113.85°W (Elev. 7067 ft)
Last Update:
5:31 am MDT May 21, 2026
Forecast Valid:
5am MDT May 21, 2026-6pm MDT May 27, 2026
 
Forecast Discussion
 
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Additional Resources

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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