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

45°F

7°C

Humidity	53%
Wind Speed	Calm
Barometer	29.73 in
Dewpoint	28°F (-2°C)
Visibility	10.00 mi
Last update	15 Apr 7:15 am MDT

More Information:

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

Extended Forecast for

4 Miles SW North Spearfish SD

Today
High: 64 °F
Sunny
Tonight
Low: 48 °F
Mostly Clear
then Mostly
Clear and
Breezy
Thursday
High: 59 °F
Mostly Sunny
and Breezy
then Showers
Likely
Thursday Night
Low: 25 °F
Rain/Snow
then Snow
Showers
Friday
High: 32 °F
Snow Showers
Likely
Friday Night
Low: 21 °F
Slight Chance
Snow Showers
then Partly
Cloudy
Saturday
High: 40 °F
Chance Snow
Showers
Saturday Night
Low: 30 °F
Mostly Clear
Sunday
High: 59 °F
Sunny

Detailed Forecast

Today

Sunny, with a high near 64. Southwest wind around 7 mph, with gusts as high as 15 mph.

Tonight

Mostly clear, with a low around 48. Breezy, with a southwest wind 8 to 13 mph increasing to 18 to 23 mph after midnight. Winds could gust as high as 30 mph.

Thursday

Showers likely after noon. Increasing clouds, with a high near 59. Breezy, with a southwest wind 14 to 23 mph becoming north in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 70%.

Thursday Night

Rain showers before 7pm, then snow showers. Low around 25. Wind chill values as low as 16. Northwest wind 15 to 17 mph, with gusts as high as 25 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 15 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. 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 21. West wind 11 to 18 mph, with gusts as high as 28 mph.

Saturday

A 30 percent chance of snow showers, mainly after noon. Mostly sunny, with a high near 40. Northwest wind 14 to 18 mph, with gusts as high as 30 mph.

Saturday Night

Mostly clear, with a low around 30. Northwest wind 10 to 16 mph becoming southwest after midnight. Winds could gust as high as 25 mph.

Sunday

Sunny, with a high near 59.

Sunday Night

Mostly clear, with a low around 40.

Monday

Sunny, with a high near 67.