Sinlaku Continues to Impact the Marianas; Severe Weather from the Central US to the Northeast; Late-Season Snow in the Northwest

Sinlaku continues to bring destructive winds, widespread heavy rain/flooding, and storm surge to the Marianas. Showers and severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley and to the Central/Southern Plains through Thursday. A front will produce late-season snowfall over the Cascades and Northern Rockies and coastal rain over the Northwest Coast through Thursday. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Fair

41°F

5°C

Humidity	61%
Wind Speed	Calm
Barometer	29.73 in
Dewpoint	28°F (-2°C)
Visibility	10.00 mi
Last update	15 Apr 6:55 am MDT

More Information:

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

Extended Forecast for

2 Miles SW Lead SD

Today
High: 63 °F
Sunny
Tonight
Low: 44 °F
Mostly Clear
Thursday
High: 60 °F
Mostly Sunny
then Showers
Likely
Thursday Night
Low: 20 °F
Rain/Snow
then Snow
Showers
Friday
High: 32 °F
Snow Showers
Likely
Friday Night
Low: 18 °F
Slight Chance
Snow Showers
then Partly
Cloudy
Saturday
High: 39 °F
Chance Snow
Showers
Saturday Night
Low: 25 °F
Mostly Clear
Sunday
High: 58 °F
Sunny

Detailed Forecast

Today

Sunny, with a high near 63. Southwest wind 3 to 6 mph. Winds could gust as high as 18 mph.

Tonight

Mostly clear, with a low around 44. Southwest wind 6 to 13 mph, with gusts as high as 31 mph.

Thursday

Showers likely after noon. Increasing clouds, with a high near 60. West wind 9 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 33 mph. Chance of precipitation is 70%.

Thursday Night

Rain showers before 7pm, then snow showers. Low around 20. Wind chill values as low as 9. Northwest wind 9 to 11 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

Friday

Snow showers likely, mainly before noon. Mostly cloudy, with a high near 32. Northwest wind 11 to 13 mph, with gusts as high as 32 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

Friday Night

A 20 percent chance of snow showers before midnight. Partly cloudy, with a low around 18. West wind 8 to 13 mph, with gusts as high as 32 mph.

Saturday

A 30 percent chance of snow showers. Mostly sunny, with a high near 39. Northwest wind 9 to 13 mph, with gusts as high as 33 mph.

Saturday Night

Mostly clear, with a low around 25. Northwest wind 6 to 11 mph becoming southwest in the evening. Winds could gust as high as 29 mph.

Sunday

Sunny, with a high near 58.

Sunday Night

Mostly clear, with a low around 36.

Monday

Sunny, with a high near 66.