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

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Fair and Breezy

39°F

4°C

Humidity	28%
Wind Speed	W 21 G 29 mph
Barometer	30.17 in
Dewpoint	9°F (-13°C)
Visibility	10.00 mi
Wind Chill	29°F (-2°C)
Last update	11 Mar 4:35 pm MDT

More Information:

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

Extended Forecast for

4 Miles SSW Lead SD

High Wind Warning March 12, 09:00am until March 12, 09:00pm

Click here for hazard details and duration

High Wind Warning

Tonight
Low: 20 °F
Partly Cloudy
Thursday
High: 48 °F
Partly Sunny
then
Rain/Snow
Likely and
Breezy
Thursday Night
Low: 19 °F
Snow and
Blustery
Friday
High: 36 °F
Snow
Friday Night
Low: 20 °F
Snow
Saturday
High: 40 °F
Snow Likely
then Snow
Saturday Night
Low: 6 °F
Heavy Snow
Sunday
High: 19 °F
Snow
Sunday Night
Low: 4 °F
Slight Chance
Snow then
Mostly Cloudy

Detailed Forecast

Tonight

Partly cloudy, with a low around 20. Southwest wind 6 to 10 mph, with gusts as high as 30 mph.

Thursday

A chance of rain between 2pm and 4pm, then snow likely, possibly mixed with rain. Mostly sunny, then becoming cloudy during the afternoon, with a high near 48. Wind chill values as low as 20 early. Breezy, with a west wind 10 to 20 mph, with gusts as high as 47 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

Thursday Night

Snow. Low around 19. Wind chill values as low as 12. Blustery, with a northwest wind 15 to 20 mph becoming light west after midnight. Winds could gust as high as 43 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

Friday

Snow. High near 36. Wind chill values as low as 14. West wind 3 to 6 mph. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

Friday Night

Snow. Low around 20. North wind around 5 mph becoming calm in the evening. Winds could gust as high as 17 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

Saturday

Snow. High near 40. Calm wind becoming southwest 5 to 7 mph in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

Saturday Night

Snow. The snow could be heavy at times. Low around 6. Northwest wind 7 to 14 mph, with gusts as high as 32 mph. Chance of precipitation is 100%.

Sunday

Snow, mainly before noon. Mostly cloudy, with a high near 19. Northwest wind 8 to 14 mph, with gusts as high as 32 mph.

Sunday Night

A slight chance of snow before midnight. Mostly cloudy, with a low around 4.

Monday

A chance of snow, mainly after noon. Mostly cloudy, with a high near 33.

Monday Night

A chance of snow. Mostly cloudy, with a low around 25.

Tuesday

A chance of rain and snow. Mostly cloudy, with a high near 50.