Severe Thunderstorms and Heavy Rainfall from the Lower Mississippi Valley to the Mid-Atlantic; Active Pattern Continues in Hawaii

Scattered severe thunderstorms are expected today from the ArkLaTex and Lower Mississippi Valley through the Ohio Valley and Mid-Atlantic. Thunderstorms may produce heavy to excessive rain that could pose a flooding threat today from east Texas into New York. A powerful kona storm will continue to impact Hawaii through Saturday, bringing heavy rainfall, strong winds, and severe thunderstorms. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Fair

27°F

-3°C

Humidity	64%
Wind Speed	W 8 G 14 mph
Barometer	30.23 in
Dewpoint	16°F (-9°C)
Visibility	10.00 mi
Wind Chill	19°F (-7°C)
Last update	11 Mar 8:35 am MDT

More Information:

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

Extended Forecast for

4 Miles SSW Lead SD

Today
High: 34 °F
Sunny
Tonight
Low: 20 °F
Mostly Clear
Thursday
High: 51 °F
Partly Sunny
then
Rain/Snow
Likely
Thursday Night
Low: 21 °F
Snow
Friday
High: 40 °F
Snow
Friday Night
Low: 22 °F
Snow Likely
Saturday
High: 41 °F
Chance Snow
then Snow
Saturday Night
Low: 7 °F
Heavy Snow
Sunday
High: 22 °F
Snow

Detailed Forecast

Today

Sunny, with a high near 34. Wind chill values as low as 12. West wind 5 to 10 mph, with gusts as high as 30 mph.

Tonight

Mostly clear, with a low around 20. West wind 6 to 10 mph, with gusts as high as 26 mph.

Thursday

Rain and snow likely before 1pm, then rain likely between 1pm and 5pm, then snow likely after 5pm. Mostly cloudy, with a high near 51. Wind chill values as low as 17 early. West wind 11 to 18 mph, with gusts as high as 39 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

Thursday Night

Snow. Low around 21. Wind chill values as low as 12. Northwest wind 13 to 18 mph becoming light after midnight. Winds could gust as high as 39 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

Friday

Snow. High near 40. West wind 3 to 7 mph. Winds could gust as high as 18 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

Friday Night

Snow likely. Mostly cloudy, with a low around 22. Northwest wind around 6 mph becoming calm in the evening. Winds could gust as high as 16 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.

Saturday

Snow, mainly after noon. High near 41. Light and variable wind becoming west 5 to 8 mph in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 90%.

Saturday Night

Snow. The snow could be heavy at times. Mostly cloudy, with a low around 7. Northwest wind 9 to 13 mph, with gusts as high as 32 mph.

Sunday

Snow. Mostly cloudy, with a high near 22.

Sunday Night

A chance of snow. Mostly cloudy, with a low around 8.

Monday

A chance of snow. Mostly cloudy, with a high near 34.

Monday Night

A chance of snow. Mostly cloudy, with a low around 26.

Tuesday

A chance of rain and snow. Mostly cloudy, with a high near 54.