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

25°F

-4°C

Humidity	69%
Wind Speed	W 12 mph
Barometer	30.22 in
Dewpoint	16°F (-9°C)
Visibility	10.00 mi
Wind Chill	14°F (-10°C)
Last update	11 Mar 8:15 am MDT

More Information:

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

Extended Forecast for

6 Miles WSW Lead SD

Today
High: 36 °F
Sunny
Tonight
Low: 21 °F
Mostly Clear
Thursday
High: 52 °F
Partly Sunny
then
Rain/Snow
Likely
Thursday Night
Low: 20 °F
Snow
Friday
High: 42 °F
Snow
Friday Night
Low: 23 °F
Snow Likely
Saturday
High: 43 °F
Chance Snow
then Snow
Saturday Night
Low: 8 °F
Heavy Snow
Sunday
High: 24 °F
Snow

Detailed Forecast

Today

Sunny, with a high near 36. Wind chill values as low as 13. Light west wind increasing to 5 to 9 mph in the morning. Winds could gust as high as 28 mph.

Tonight

Mostly clear, with a low around 21. Southwest wind 3 to 7 mph. Winds could gust as high as 24 mph.

Thursday

Rain likely between noon and 5pm, then snow likely after 5pm. Mostly cloudy, with a high near 52. Wind chill values as low as 19 early. Southwest wind 8 to 17 mph, with gusts as high as 37 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

Thursday Night

Snow. Low around 20. Wind chill values as low as 13. Northwest wind 12 to 17 mph becoming light after midnight. Winds could gust as high as 37 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

Friday

Snow. High near 42. Calm wind becoming west around 5 mph in the afternoon. Winds could gust as high as 16 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 23. Light west wind. Chance of precipitation is 70%. New snow accumulation of around an inch possible.

Saturday

Snow, mainly after noon. High near 43. Calm wind becoming west around 6 mph in the afternoon. Winds could gust as high as 21 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 7 to 10 mph, with gusts as high as 28 mph.

Sunday

Snow. Cloudy, then gradually becoming mostly sunny, with a high near 24.

Sunday Night

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

Monday

A chance of snow. Mostly cloudy, with a high near 36.

Monday Night

A chance of snow. Mostly cloudy, with a low around 27.

Tuesday

A chance of rain and snow. Mostly cloudy, with a high near 55.