Severe Thunderstorms and Heavy Rainfall in the Ohio Valley and Great Lakes; Winter Weather in the Northern Tier

A slow moving front extending from the Great Lakes region into the Plains will bring snow, wintry mix, and ice accumulation north of the front from the Upper Midwest into New England, and severe weather and heavy rain south of the front. Scattered severe thunderstorms with damaging gusts, severe hail, and heavy rain are expected across parts of the Great Lakes/Midwest through tonight. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Overcast

34°F

1°C

Humidity	51%
Wind Speed	E 20 mph
Barometer	30.03 in
Dewpoint	18°F (-8°C)
Visibility	10.00 mi
Wind Chill	23°F (-5°C)
Last update	31 Mar 4:15 pm MDT

More Information:

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

Extended Forecast for

4 Miles WSW Lead SD

This Afternoon
High: 30 °F
Slight Chance
Snow
Tonight
Low: 26 °F⇑
Mostly Cloudy
then Chance
Snow
Wednesday
High: 37 °F
Snow then
Rain/Snow
Wednesday Night
Low: 25 °F
Snow then
Chance Snow
Thursday
High: 46 °F
Chance
Rain/Snow
then
Rain/Snow
Thursday Night
Low: 19 °F
Rain/Snow
then Snow
Friday
High: 25 °F
Heavy Snow
Friday Night
Low: 18 °F
Snow
Saturday
High: 38 °F
Chance Snow

Detailed Forecast

This Afternoon

A 20 percent chance of snow. Partly sunny, with a steady temperature around 30. Wind chill values as low as 18. Southeast wind 10 to 14 mph, with gusts as high as 26 mph.

Tonight

A 40 percent chance of snow after midnight. Mostly cloudy, with a temperature rising to around 31 by 4am. Wind chill values as low as 12. South wind 15 to 18 mph, with gusts as high as 30 mph. Little or no snow accumulation expected.

Wednesday

Snow, possibly mixed with rain. High near 37. Wind chill values as low as 18. South wind 7 to 15 mph becoming northeast in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

Wednesday Night

Snow, mainly before midnight. Low around 25. Wind chill values as low as 18. North wind 5 to 9 mph becoming south after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

Thursday

Rain and snow before 2pm, then rain between 2pm and 5pm, then rain, possibly mixed with snow after 5pm. High near 46. Southeast wind 6 to 10 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

Thursday Night

Snow, possibly mixed with rain, becoming all snow after 9pm. Low around 19. Southeast wind 10 to 13 mph becoming southwest after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

Friday

Snow. The snow could be heavy at times. High near 25. Southwest wind 11 to 13 mph becoming north in the morning. Winds could gust as high as 28 mph. Chance of precipitation is 100%.

Friday Night

Snow, mainly before midnight. Mostly cloudy, with a low around 18. Northwest wind around 15 mph, with gusts as high as 30 mph.

Saturday

A chance of snow, mainly before noon. Mostly cloudy, then gradually becoming sunny, with a high near 38.

Saturday Night

Mostly clear, with a low around 26.

Sunday

Sunny, with a high near 50.

Sunday Night

A slight chance of rain and snow. Partly cloudy, with a low around 31.

Monday

A slight chance of rain and snow. Mostly sunny, with a high near 49.