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

52°F

11°C

Humidity	44%
Wind Speed	W 5 mph
Barometer	29.75 in
Dewpoint	30°F (-1°C)
Visibility	10.00 mi
Wind Chill	51°F (11°C)
Last update	15 Apr 8:35 am MDT

More Information:

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

Extended Forecast for

Spearfish SD

Today
High: 69 °F
Sunny
Tonight
Low: 49 °F
Mostly Clear
Thursday
High: 64 °F
Mostly Sunny
and Breezy
then Showers
Likely
Thursday Night
Low: 25 °F
Rain/Snow
then Snow
Showers
Friday
High: 37 °F
Snow Showers
Likely and
Breezy
Friday Night
Low: 22 °F
Slight Chance
Snow Showers
then Partly
Cloudy
Saturday
High: 45 °F
Breezy.
Slight Chance
Snow Showers
then Chance
Rain/Snow
Saturday Night
Low: 30 °F
Mostly Clear
Sunday
High: 63 °F
Sunny

Detailed Forecast

Today

Sunny, with a high near 69. West wind 5 to 7 mph becoming east in the afternoon. Winds could gust as high as 15 mph.

Tonight

Mostly clear, with a low around 49. Southwest wind 7 to 17 mph, with gusts as high as 28 mph.

Thursday

Showers likely after noon. Increasing clouds, with a high near 64. Breezy, with a west wind 17 to 22 mph becoming northwest in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 60%.

Thursday Night

Rain showers before 9pm, then snow showers. Low around 25. Wind chill values as low as 16. Northwest wind 14 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

Friday

Snow showers likely, mainly before noon. Mostly cloudy, with a high near 37. Breezy, with a northwest wind 14 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Friday Night

A 20 percent chance of snow showers before midnight. Partly cloudy, with a low around 22. West wind 9 to 18 mph, with gusts as high as 31 mph.

Saturday

A chance of snow showers before 5pm, then a chance of rain and snow showers. Mostly sunny, with a high near 45. Breezy, with a northwest wind 10 to 15 mph increasing to 17 to 22 mph in the morning. Winds could gust as high as 34 mph. Chance of precipitation is 30%.

Saturday Night

Mostly clear, with a low around 30. Northwest wind 7 to 16 mph becoming southwest after midnight. Winds could gust as high as 28 mph.

Sunday

Sunny, with a high near 63.

Sunday Night

Mostly clear, with a low around 40.

Monday

Sunny, with a high near 72.

Monday Night

Mostly clear, with a low around 46.

Tuesday

Sunny, with a high near 73.