Sinlaku Continues to Impact the Marianas; Severe Weather for the Central Plains and Northeast; Record Warmth for mid-Atlantic to Southeast

Sinlaku continues to affect the Marianas as it moves north through Friday. Meanwhile, severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley today and for the Central/Southern Plains on Friday. Considerable flooding impacts are ongoing in the Upper Great Lakes, and expected to continue through the weekend. Fire weather concerns persist in the Plains. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Fair

59°F

15°C

Humidity	31%
Wind Speed	SE 12 G 17 mph
Barometer	29.56 in
Dewpoint	28°F (-2°C)
Visibility	10.00 mi
Last update	16 Apr 5:55 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: 57 °F⇓
Mostly Sunny
and Breezy
then Showers
Tonight
Low: 24 °F
Snow Showers
Friday
High: 35 °F
Chance Snow
Showers and
Breezy
Friday Night
Low: 23 °F
Slight Chance
Snow Showers
and Blustery
Saturday
High: 44 °F
Chance Snow
Showers and
Breezy
Saturday Night
Low: 31 °F
Mostly Clear
Sunday
High: 59 °F
Sunny
Sunday Night
Low: 41 °F
Mostly Clear
Monday
High: 69 °F
Sunny

Detailed Forecast

Today

A slight chance of showers, then showers and possibly a thunderstorm after 3pm. Temperature rising to near 57 by 8am, then falling to around 46 during the remainder of the day. Breezy, with a west wind 20 to 25 mph becoming north 14 to 19 mph in the afternoon. Winds could gust as high as 38 mph. Chance of precipitation is 80%.

Tonight

Snow showers. Low around 24. Wind chill values as low as 14. Northwest wind 15 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

Friday

A 50 percent chance of snow showers. Mostly cloudy, with a high near 35. Wind chill values as low as 12. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph. New snow accumulation of less than a half inch possible.

Friday Night

A 20 percent chance of snow showers. Partly cloudy, with a low around 23. Wind chill values as low as 12. Blustery, with a west wind 11 to 20 mph, with gusts as high as 29 mph.

Saturday

A 30 percent chance of snow showers. Mostly sunny, with a high near 44. Breezy, with a northwest wind 16 to 20 mph, with gusts as high as 31 mph.

Saturday Night

Mostly clear, with a low around 31. Northwest wind 8 to 17 mph becoming southwest after midnight. Winds could gust as high as 26 mph.

Sunday

Sunny, with a high near 59. Southwest wind 6 to 10 mph becoming northeast in the morning. Winds could gust as high as 17 mph.

Sunday Night

Mostly clear, with a low around 41. East wind around 10 mph becoming south after midnight. Winds could gust as high as 17 mph.

Monday

Sunny, with a high near 69.

Monday Night

Partly cloudy, with a low around 47.