Box Elder, SD 57719 Weather

Pennington County11:05 PM MDT44.12°N, 103.07°W

Current conditions

Mostly Clear
62°
Mostly Clear
Feels like 62°
High 71° Wednesday·Low 43° tonight
WindNW 14 mph
Humidity48%
Dew point42°
Pressure30.07 inHg
Visibility10.0 mi
Cloud cover6%
UV index0 Low
Sunrise7:14 AM
Sunset6:02 PM

Observed at Ellsworth Air Force Base · 1 hr ago

Forecast

10-day

  • Tonight

    Mostly clear. Low around 43, with temperatures rising to around 45 overnight. Northwest wind around 10 mph, with gusts as high as 23 mph.

  • Wednesday

    Sunny. High near 71, with temperatures falling to around 66 in the afternoon. Northeast wind 5 to 10 mph, with gusts as high as 22 mph.

  • Wednesday Night

    Mostly clear. Low around 47, with temperatures rising to around 51 overnight. South wind around 9 mph, with gusts as high as 20 mph.

National Weather Service forecast updated 3 hrs ago.

Hourly

Hourly forecast
  1. Now Mostly Clear 56°
  2. Wed12 AM Clear 54°
  3. 1 AM Clear 53°
  4. 2 AM Clear 51°
  5. 3 AM Clear 49°
  6. 4 AM Clear 47°
  7. 5 AM Clear 45°
  8. 6 AM Sunny 44°
  9. 7 AM Sunny 44°
  10. 8 AM Sunny 46°
  11. 9 AM Sunny 51°
  12. 10 AM Sunny 55°
  13. 11 AM Sunny 58°
  14. 12 PM Mostly Sunny 62°
  15. 1 PM Mostly Sunny 65°
  16. 2 PM Sunny 68°
  17. 3 PM Sunny 70°
  18. 4 PM Sunny 69°
  19. 5 PM Sunny 66°
  20. 6 PM Clear 62°
  21. 7 PM Mostly Clear 58°
  22. 8 PM Mostly Clear 56°
  23. 9 PM Mostly Clear 54°
  24. 10 PM Clear 53°

10-day forecast

Details
  1. TonightOct 20 Mostly Clear Mostly Clear43°
  2. WedOct 21 Sunny Sunny47°71°
  3. ThuOct 22 Mostly Sunny Mostly Sunny55°79°
  4. FriOct 23 Partly Sunny Partly Sunny18%44°79°
  5. SatOct 24 Mostly Sunny Mostly Sunny36°57°
  6. SunOct 25 Sunny Sunny36°57°
  7. MonOct 26 Sunny Sunny12%34°52°
  8. TueOct 27 Mostly Sunny Mostly Sunny10%58°
  9. WedOct 28 Sunny Sunny35°59°
  10. ThuOct 29 Partly cloudy Partly cloudy41°64°

Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.

Radar

Full map
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Weather news near Box Elder

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Air quality

31
Good
Ozone

Air quality is satisfactory, and air pollution poses little or no risk.

Rapid City, SD reporting area · 1 hr ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.

Sun & moon

Sunrise 7:14 AM
Sunset 6:02 PM
Daylight 10 h 47 min (−2 min 53 s tomorrow)
Waxing Gibbous · 74% lit
Moonrise 3:30 PM Moonset 1:02 AM
Full moon Oct 26 New moon Nov 9

Almanac

Monthly
Normal high / low58° / 32°
Record high88° (1947)
Record low19° (1987)
Wettest0.56 in (2019)
Yesterday65° / 32°
Month to date0.12 in (normal 1.00 in)

Rapid City Area, records since 1942. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).

Nearby

Forecasters' discussion

From the National Weather Service office in UNR, issued 5 hrs ago

Key Messages

- Warm and dry weather through much of this week.

Discussion

(This Evening Through Tuesday) Issued at 1254 PM MDT Tue Oct 20 2026

Current upper level analysis shows broad ridging over the central and western US with deepening trof off the west coast. The CWA sits under upper level southwest flow and clear skies. Sfc stations report light southerly winds across much of western SD with temperatures in the 60s to low 70s.

Weak front will cross the CWA overnight with the only impacts being a slight drop in tomorrow's highs and a brief period of breezy northwest winds overnight. Upper ridge builds over the region Wednesday into Thursday with southerly return flow supporting warming temps over the area.

Southerly winds pick up early Friday morning as upper level trof approaches with attendant sfc low and trailing cold front crossing the Northern Plains. WAA ahead of the front Friday afternoon will support highs in the upper 70s to low 80s over the western SD plains. As the front crosses the area later Friday evening, winds will shift to the northwest but remain breezy through the night, especially over northwestern SD. Much cooler conditions expected over the weekend with low chances for light precip.

Aviation

(For the 00Z TAFS Through 00Z Wednesday Evening) Issued At 512 PM MDT Tue Oct 20 2026

VFR conditions are expected through the forecast period.

Unr Watches

SD...None. WY...None.

Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Conservative index and reflects what the press published. Terms of use.