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.

Partly Cloudy

25°F

-4°C

Humidity	74%
Wind Speed	W 12 mph
Barometer	30.21 in
Dewpoint	18°F (-8°C)
Visibility	10.00 mi
Wind Chill	14°F (-10°C)
Last update	11 Mar 7:35 am MDT

More Information:

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

Extended Forecast for

4 Miles WSW Lead SD

Today
High: 31 °F
Sunny
Tonight
Low: 23 °F
Mostly Clear
Thursday
High: 47 °F
Breezy.
Partly Sunny
then Snow
Likely
Thursday Night
Low: 20 °F
Snow and
Blustery
Friday
High: 36 °F
Snow
Friday Night
Low: 22 °F
Snow Likely
Saturday
High: 38 °F
Chance Snow
then Snow
Saturday Night
Low: 8 °F
Heavy Snow
Sunday
High: 19 °F
Snow

Detailed Forecast

Today

Sunny, with a high near 31. Wind chill values as low as 6. West wind 9 to 14 mph, with gusts as high as 29 mph.

Tonight

Mostly clear, with a steady temperature around 23. Wind chill values as low as 9. West wind 11 to 18 mph, with gusts as high as 28 mph.

Thursday

Snow likely after noon. Mostly cloudy, with a high near 47. Wind chill values as low as 12 early. Breezy, with a west wind 20 to 26 mph, with gusts as high as 40 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

Thursday Night

Snow. Low around 20. Wind chill values as low as 7. Blustery, with a northwest wind 18 to 28 mph decreasing to 8 to 18 mph 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 36. West wind around 8 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.

Friday Night

Snow likely. Mostly cloudy, with a low around 22. West wind 6 to 8 mph, with gusts as high as 17 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

Saturday

Snow, mainly after noon. High near 38. Southwest wind 8 to 10 mph becoming north in the afternoon. 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 8. Northwest wind 13 to 18 mph, with gusts as high as 31 mph.

Sunday

Snow. Mostly cloudy, with a high near 19.

Sunday Night

A chance of snow. Mostly cloudy, with a low around 9.

Monday

A chance of snow. Mostly cloudy, with a high near 31.

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 50.