Tracking Severe Thunderstorms and Excessive Rainfall in the Southern U.S.; Winter Storm to Impact the Northern U.S.

A storm system will shift from eastern Texas into the lower Mississippi Valley Monday with additional threats of severe thunderstorms and heavy to excessive rainfall which may bring flooding. A Flood Watch remains in effect. In the northern U.S., a storm will bring heavy snow and gusty winds over parts of the northern Rockies, northern Plains, and Upper Midwest Monday into Wednesday. Read More >

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Fair

41°F

5°C

Humidity	53%
Wind Speed	Calm
Barometer	29.94 in
Dewpoint	25°F (-4°C)
Visibility	10.00 mi
Last update	24 Nov 1:35 am MST

More Information:

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

Extended Forecast for

Lead SD

Overnight
Low: 32 °F
Mostly Cloudy
Monday
High: 50 °F
Partly Sunny
then Slight
Chance Snow
Monday Night
Low: 19 °F
Breezy.
Rain/Snow
Likely then
Chance Snow
Tuesday
High: 26 °F
Chance Snow
and Blustery
Tuesday Night
Low: 16 °F
Partly Cloudy
Wednesday
High: 33 °F
Partly Sunny
Wednesday Night
Low: 21 °F
Mostly Cloudy
Thanksgiving Day
High: 33 °F
Slight Chance
Snow
Thursday Night
Low: 21 °F
Chance Snow

Detailed Forecast

Overnight

Mostly cloudy, with a low around 32. Calm wind.

Monday

A 10 percent chance of snow after 5pm. Partly sunny, with a high near 50. Calm wind becoming south around 6 mph. Winds could gust as high as 17 mph.

Monday Night

A slight chance of snow before 8pm, then snow likely, possibly mixed with rain between 8pm and 9pm, then snow likely after 9pm. Mostly cloudy, with a low around 19. Wind chill values as low as 1. Breezy, with a west wind 8 to 13 mph increasing to 21 to 26 mph after midnight. Winds could gust as high as 45 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

Tuesday

A 50 percent chance of snow. Cloudy through mid morning, then gradual clearing, with a high near 26. Wind chill values as low as 1. Blustery, with a northwest wind 19 to 24 mph decreasing to 11 to 16 mph in the afternoon. Winds could gust as high as 41 mph. New snow accumulation of less than one inch possible.

Tuesday Night

Partly cloudy, with a low around 16. West wind 5 to 9 mph, with gusts as high as 20 mph.

Wednesday

Partly sunny, with a high near 33. Calm wind becoming northwest around 5 mph.

Wednesday Night

Mostly cloudy, with a low around 21. Calm wind.

Thanksgiving Day

A slight chance of snow after 11am. Mostly cloudy, with a high near 33. Light and variable wind.

Thursday Night

A chance of snow. Mostly cloudy, with a low around 21.

Friday

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