Heavy Rain From the Central Plains to the Mid-Atlantic; Heat Wave Begins This Weekend

Strong to severe thunderstorms and heavy rain will impact portions of the central Plains into the Upper Midwest and the Mid-Atlantic through the weekend. A stretch of unusually hot and humid weather is expected across portions of the central U.S. and the Southeast beginning this weekend and continuing through next week. The heat may reach dangerous levels, particularly mid to late next week. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Fair

77°F

25°C

Humidity	51%
Wind Speed	E 8 mph
Barometer	30.05 in
Dewpoint	57°F (14°C)
Visibility	10.00 mi
Heat Index	79°F (26°C)
Last update	18 Jul 5:55 pm MDT

More Information:

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

Extended Forecast for

Lead SD

Tonight
Low: 57 °F
Mostly Cloudy
then
Scattered
Showers
Saturday
High: 81 °F
Scattered
Showers then
Chance
T-storms
Saturday Night
Low: 60 °F
Slight Chance
T-storms then
Mostly Clear
Sunday
High: 83 °F
Sunny then
Slight Chance
T-storms
Sunday Night
Low: 61 °F
Partly Cloudy
Monday
High: 84 °F
Sunny then
Slight Chance
T-storms
Monday Night
Low: 60 °F
Slight Chance
T-storms then
Partly Cloudy
Tuesday
High: 80 °F
Mostly Sunny
then Chance
T-storms
Tuesday Night
Low: 57 °F
Chance
T-storms

Detailed Forecast

Tonight

Scattered showers and thunderstorms, mainly after 3am. Mostly cloudy, with a low around 57. East wind around 5 mph becoming calm. Chance of precipitation is 30%.

Saturday

A 30 percent chance of showers and thunderstorms, mainly after 3pm. Partly sunny, with a high near 81. South wind 5 to 10 mph, with gusts as high as 20 mph.

Saturday Night

A 20 percent chance of showers and thunderstorms before midnight. Mostly clear, with a low around 60. Southeast wind around 5 mph, with gusts as high as 20 mph.

Sunday

A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 83. Southwest wind around 5 mph becoming northeast in the afternoon. Winds could gust as high as 15 mph.

Sunday Night

Partly cloudy, with a low around 61. East wind around 5 mph becoming calm in the evening.

Monday

A slight chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Sunny, with a high near 84. Calm wind becoming north around 5 mph in the morning. Winds could gust as high as 15 mph. Chance of precipitation is 20%.

Monday Night

A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 60. East wind around 5 mph becoming southwest after midnight. Winds could gust as high as 15 mph.

Tuesday

A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 80. Southwest wind around 5 mph becoming northeast in the afternoon. Winds could gust as high as 15 mph.

Tuesday Night

A chance of showers and thunderstorms. Partly cloudy, with a low around 57.

Wednesday

A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 77.

Wednesday Night

A chance of showers and thunderstorms. Partly cloudy, with a low around 58.

Thursday

A chance of showers and thunderstorms. Mostly sunny, with a high near 81.

Thursday Night

A chance of showers and thunderstorms. Partly cloudy, with a low around 58.

Friday

A chance of showers and thunderstorms. Mostly sunny, with a high near 82.