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

Heat Builds in the West; Extremely Critical Fire Weather in the Northwest

A heat wave over the Southwest will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Critical to extremely critical fire weather conditions are forecast from the Northwest and the northern Great Basin this weekend. Particularly Dangerous Situation Red Flag Warnings have been issued. Read More >

Hazardous Weather Conditions

Current conditions at

Rapid City, Rapid City Regional Airport (KRAP)

Lat: 44.05°NLon: 103.05°WElev: 3202ft.

Fair

71°F

22°C

Humidity 49%
Wind Speed S 16 G 26 mph
Barometer 29.86 in (1007.4 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 2 Aug 4:52 am MDT
Extended Forecast for

Box Elder SD

Heat Advisory August 2, 10:00am until August 2, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: Sunny and hot, with a high near 104. South wind 13 to 18 mph becoming north in the afternoon. Winds could gust as high as 25 mph.

    High: 104 °F

    Hot

  • Tonight

    Tonight: Areas of smoke before 9pm, then areas of smoke after midnight. Partly cloudy, with a low around 68. Northwest wind 11 to 14 mph, with gusts as high as 20 mph.

    Low: 68 °F

    Areas Smoke

  • Monday

    Monday: Areas of smoke. Sunny, with a high near 87. Windy, with a north wind 15 to 20 mph increasing to 25 to 30 mph in the afternoon. Winds could gust as high as 39 mph.

    High: 87 °F

    Areas Smoke
    and Windy

  • Monday Night

    Monday Night: Mostly clear, with a low around 55. Breezy, with a north wind 18 to 28 mph decreasing to 6 to 16 mph. Winds could gust as high as 36 mph.

    Low: 55 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 77. Light and variable wind becoming southeast 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 77 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms after midnight. Partly cloudy, with a low around 55. Southeast wind 5 to 10 mph becoming west after midnight. Winds could gust as high as 20 mph.

    Low: 55 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 92.

    High: 92 °F

    Sunny

Detailed Forecast

Today
Sunny and hot, with a high near 104. South wind 13 to 18 mph becoming north in the afternoon. Winds could gust as high as 25 mph.
Tonight
Areas of smoke before 9pm, then areas of smoke after midnight. Partly cloudy, with a low around 68. Northwest wind 11 to 14 mph, with gusts as high as 20 mph.
Monday
Areas of smoke. Sunny, with a high near 87. Windy, with a north wind 15 to 20 mph increasing to 25 to 30 mph in the afternoon. Winds could gust as high as 39 mph.
Monday Night
Mostly clear, with a low around 55. Breezy, with a north wind 18 to 28 mph decreasing to 6 to 16 mph. Winds could gust as high as 36 mph.
Tuesday
Mostly sunny, with a high near 77. Light and variable wind becoming southeast 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
A 20 percent chance of showers and thunderstorms after midnight. Partly cloudy, with a low around 55. Southeast wind 5 to 10 mph becoming west after midnight. Winds could gust as high as 20 mph.
Wednesday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 85.
Wednesday Night
Mostly clear, with a low around 59.
Thursday
Sunny, with a high near 92.
Thursday Night
Mostly clear, with a low around 62.
Friday
Sunny, with a high near 98.
Friday Night
Mostly clear, with a low around 66.
Saturday
Sunny, with a high near 97.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Box Elder SD
 44.13°N 103.06°W (Elev. 3091 ft)
Last Update:
4:37 am MDT Aug 2, 2026
Forecast Valid:
5am MDT Aug 2, 2026-6pm MDT Aug 8, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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