Dangerous Fire Conditions in the Southern High Plains; Severe Weather from the Great Lakes into Central/Southern Plains; Late-Season Mountain Snow

Dry and windy conditions will produce dangerous fire weather conditions across the southern High Plains into the Southwest. Severe storms, including very large hail, strong tornadoes, and winds, are expected from the Great Lakes into the central/southern Plains. Heavy late-season snow and cold temperatures are expected in the northern to central Rockies. Heat is spreading across the eastern U.S.. Read More >

Current conditions at

Spearfish / Clyde Ice (KSPF)

Lat: 44.48°NLon: 103.78°WElev: 3898ft.

Overcast

41°F

5°C

Humidity 81%
Wind Speed NW 13 G 21 mph
Barometer 29.93 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 18 May 3:35 am MDT
Extended Forecast for

Lead SD

  • Overnight

    Overnight: A chance of rain and snow showers before 5am, then a chance of snow showers.  Cloudy, with a steady temperature around 36. Calm wind becoming northwest around 6 mph. Winds could gust as high as 21 mph.  Chance of precipitation is 40%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 36 °F

    Chance
    Rain/Snow

  • Monday

    Monday: Snow showers, possibly mixed with rain, becoming all snow after 2pm.  High near 33. North wind 6 to 8 mph, with gusts as high as 22 mph.  Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

    High: 33 °F

    Rain/Snow

  • Monday Night

    Monday Night: A 50 percent chance of snow showers before midnight.  Cloudy, then gradually becoming partly cloudy, with a low around 25. Northwest wind 3 to 7 mph. Winds could gust as high as 21 mph.  New snow accumulation of less than a half inch possible.

    Low: 25 °F

    Chance Snow
    Showers then
    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 50. Wind chill values as low as 20 early. Northwest wind 3 to 6 mph. Winds could gust as high as 18 mph.

    High: 50 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 32. Calm wind becoming southwest around 6 mph after midnight. Winds could gust as high as 22 mph.

    Low: 32 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 61. Southwest wind around 6 mph becoming calm  in the morning. Winds could gust as high as 22 mph.

    High: 61 °F

    Sunny

  • Wednesday Night

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

    Low: 38 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of showers, then showers likely and possibly a thunderstorm after noon.  Partly sunny, with a high near 56.

    High: 56 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before midnight, then a slight chance of showers.  Mostly cloudy, with a low around 36.

    Low: 36 °F

    Chance
    Showers

Detailed Forecast

Overnight
A chance of rain and snow showers before 5am, then a chance of snow showers. Cloudy, with a steady temperature around 36. Calm wind becoming northwest around 6 mph. Winds could gust as high as 21 mph. Chance of precipitation is 40%. Total nighttime snow accumulation of less than a half inch possible.
Monday
Snow showers, possibly mixed with rain, becoming all snow after 2pm. High near 33. North wind 6 to 8 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
Monday Night
A 50 percent chance of snow showers before midnight. Cloudy, then gradually becoming partly cloudy, with a low around 25. Northwest wind 3 to 7 mph. Winds could gust as high as 21 mph. New snow accumulation of less than a half inch possible.
Tuesday
Mostly sunny, with a high near 50. Wind chill values as low as 20 early. Northwest wind 3 to 6 mph. Winds could gust as high as 18 mph.
Tuesday Night
Mostly clear, with a low around 32. Calm wind becoming southwest around 6 mph after midnight. Winds could gust as high as 22 mph.
Wednesday
Sunny, with a high near 61. Southwest wind around 6 mph becoming calm in the morning. Winds could gust as high as 22 mph.
Wednesday Night
Partly cloudy, with a low around 38.
Thursday
A slight chance of showers, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 56.
Thursday Night
A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 36.
Friday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly sunny, with a high near 60.
Friday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 40.
Saturday
Mostly sunny, with a high near 67.
Saturday Night
Partly cloudy, with a low around 46.
Sunday
Sunny, with a high near 75.
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ABOUT THIS FORECAST

 
Point Forecast:
Lead SD
 44.35°N 103.77°W (Elev. 5322 ft)
3:27 am MDT May 18, 2026
3am MDT May 18, 2026-6pm MDT May 24, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database