Severe Thunderstorms and Flooding from the Southern Plains to the Great Lakes; Record Heat in the East

Widely scattered severe thunderstorms may produce damaging winds, hail, and flash flooding from the southern Plains into the lower Great Lakes. Elevated to locally critical fire weather conditions will persist across portions of the Southwest and Southern High Plains due to gusty winds and dry conditions. An early-season heatwave will challenge temperature records across the eastern U.S.. Read More >

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Partly Cloudy

43°F

6°C

Humidity	57%
Wind Speed	NW 14 mph
Barometer	30.20 in
Dewpoint	28°F (-2°C)
Visibility	10.00 mi
Wind Chill	36°F (2°C)
Last update	19 May 9:35 am MDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Lead SD

Today
High: 50 °F
Sunny
Tonight
Low: 33 °F
Mostly Clear
Wednesday
High: 60 °F
Sunny then
Chance
Showers
Wednesday Night
Low: 38 °F
Gradual
Clearing
Thursday
High: 57 °F
Partly Sunny
then Showers
Likely
Thursday Night
Low: 37 °F
Showers
Likely
Friday
High: 58 °F
Chance
Showers
Friday Night
Low: 40 °F
Partly Cloudy
Saturday
High: 68 °F
Mostly Sunny
then Slight
Chance
T-storms

Detailed Forecast

Today

Sunny, with a high near 50. Northwest wind around 5 mph becoming calm in the afternoon. Winds could gust as high as 17 mph.

Tonight

Mostly clear, with a low around 33. Calm wind becoming south around 6 mph in the evening. Winds could gust as high as 21 mph.

Wednesday

A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 60. Southwest wind around 6 mph becoming calm in the morning. Winds could gust as high as 22 mph.

Wednesday Night

Cloudy during the early evening, then gradual clearing, with a low around 38. Calm wind becoming south around 5 mph. Winds could gust as high as 16 mph.

Thursday

Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 57. Calm wind becoming northwest around 6 mph in the afternoon. Winds could gust as high as 17 mph. Chance of precipitation is 70%.

Thursday Night

Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 37. Northwest wind around 6 mph becoming calm in the evening. Winds could gust as high as 18 mph. Chance of precipitation is 60%.

Friday

A 40 percent chance of showers. Partly sunny, with a high near 58.

Friday Night

Partly cloudy, with a low around 40.

Saturday

A slight chance of showers and thunderstorms after noon. Sunny, with a high near 68.

Saturday Night

Mostly clear, with a low around 45.

Sunday

Sunny, with a high near 74.

Sunday Night

Mostly clear, with a low around 49.