On July 7, 2015, NWS implemented changes to the icons depicted on all of its point-forecast pages. Changes include new icon images with increased clarity, 6-hour increments for rapidly changing weather and new color blocks to highlight forecast hazards.

A page depicting all of the new icon images can be accessed here: www.weather.gov/forecast-icons

Changes to the icons were based on analysis of 6,700 public comments collected in 2014. Also, many of these changes are based on the results of a research project led by the National Center for Atmospheric Research.

Users are encouraged to continue to provide comments regarding these changes via email at icons@noaa.gov. NWS will continue to analyze incoming feedback and refine the icons as necessary. Any substantial change to the icons will be facilitated through the NWS public comment/review process.

Active weather from Northern Rockies to Upper Midwest

A storm system in the northern U.S. will bring a variety of weather across several states from the Northern Rockies to the Upper Midwest on Saturday. Several inches of early-season snow are forecast in the higher elevations of Idaho and western Montana. Locally-heavy rain will accompany strong thunderstorms in the northern Plains and Upper Midwest.
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Hazardous Weather Conditions

Current conditions at

Custer, Custer County Airport (KCUT)

Lat: 43.73°NLon: 103.62°WElev: 5600ft.

Fair

72°F

22°C

Humidity 46%
Wind Speed Calm
Barometer 29.98 in (1007.1 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 5 Sep 9:53 am MDT
Extended Forecast for

Keystone SD

  • Today

    Today: Isolated showers and thunderstorms before noon.  Mostly sunny, with a high near 86. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.  Chance of precipitation is 20%.

    Isolated
    T-storms then
    Mostly Sunny

    High: 86 °F

  • Tonight

    Tonight: Partly cloudy, with a low around 57. Southwest wind 6 to 13 mph becoming northwest after midnight. Winds could gust as high as 21 mph.

    Partly Cloudy

    Low: 57 °F

  • Sunday

    Sunday: Sunny, with a high near 74. Northwest wind 5 to 11 mph becoming southeast in the afternoon.

    Sunny

    High: 74 °F

  • Sunday
    Night

    Sunday Night: A 20 percent chance of showers and thunderstorms after midnight.  Mostly clear, with a low around 50. East wind around 6 mph becoming southwest after midnight.

    Mostly Clear
    then Slight
    Chance
    T-storms

    Low: 50 °F

  • Labor
    Day

    Labor Day: Sunny, with a high near 74. South wind around 6 mph becoming north in the afternoon.

    Sunny

    High: 74 °F

  • Monday
    Night

    Monday Night: Partly cloudy, with a low around 48. North wind around 6 mph.

    Partly Cloudy

    Low: 48 °F

  • Tuesday

    Tuesday: Mostly sunny, with a high near 71.

    Mostly Sunny

    High: 71 °F

  • Tuesday
    Night

    Tuesday Night: Mostly clear, with a low around 50.

    Mostly Clear

    Low: 50 °F

  • Wednesday

    Wednesday: Sunny, with a high near 74.

    Sunny

    High: 74 °F

Detailed Forecast

Today
Isolated showers and thunderstorms before noon. Mostly sunny, with a high near 86. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Chance of precipitation is 20%.
Tonight
Partly cloudy, with a low around 57. Southwest wind 6 to 13 mph becoming northwest after midnight. Winds could gust as high as 21 mph.
Sunday
Sunny, with a high near 74. Northwest wind 5 to 11 mph becoming southeast in the afternoon.
Sunday Night
A 20 percent chance of showers and thunderstorms after midnight. Mostly clear, with a low around 50. East wind around 6 mph becoming southwest after midnight.
Labor Day
Sunny, with a high near 74. South wind around 6 mph becoming north in the afternoon.
Monday Night
Partly cloudy, with a low around 48. North wind around 6 mph.
Tuesday
Mostly sunny, with a high near 71.
Tuesday Night
Mostly clear, with a low around 50.
Wednesday
Sunny, with a high near 74.
Wednesday Night
Partly cloudy, with a low around 49.
Thursday
A 20 percent chance of showers. Mostly sunny, with a high near 67.
Thursday Night
A 20 percent chance of showers. Partly cloudy, with a low around 47.
Friday
Mostly sunny, with a high near 70.
  Click Map For Forecast
Point Forecast:
Keystone SD
 43.89°N 103.43°W (Elev. 4541 ft)
8:27 am MDT Sep 5, 2015
10am MDT Sep 5, 2015-6pm MDT Sep 11, 2015
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Graph

National Digital Forecast Database