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

64°F

18°C

Humidity	30%
Wind Speed	Vrbl 5 mph
Barometer	29.72 in
Dewpoint	32°F (0°C)
Visibility	10.00 mi
Last update	15 Apr 1:55 pm MDT

More Information:

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

Extended Forecast for

4 Miles SSW Lead SD

This Afternoon
High: 62 °F
Sunny
Tonight
Low: 42 °F
Partly Cloudy
Thursday
High: 61 °F
Mostly Sunny
then Chance
Showers
Thursday Night
Low: 18 °F
Rain/Snow
then Snow
Showers
Friday
High: 34 °F
Snow Showers
Likely
Friday Night
Low: 17 °F
Slight Chance
Snow Showers
then Partly
Cloudy
Saturday
High: 41 °F
Chance Snow
Showers
Saturday Night
Low: 25 °F
Mostly Clear
Sunday
High: 58 °F
Sunny

Detailed Forecast

This Afternoon

Sunny, with a high near 62. Southwest wind around 6 mph, with gusts as high as 17 mph.

Tonight

Partly cloudy, with a low around 42. Southwest wind 5 to 10 mph, with gusts as high as 31 mph.

Thursday

A chance of showers between noon and 3pm, then a chance of showers and thunderstorms after 3pm. Increasing clouds, with a high near 61. Southwest wind 8 to 10 mph becoming north in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 50%.

Thursday Night

Rain showers before 7pm, then snow showers. Low around 18. Wind chill values as low as 9. Northwest wind around 9 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

Friday

Snow showers likely, mainly before noon. Mostly cloudy, with a high near 34. Northwest wind 8 to 11 mph, with gusts as high as 32 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 17. West wind 6 to 10 mph, with gusts as high as 31 mph.

Saturday

A 50 percent chance of snow showers. Mostly sunny, with a high near 41. Northwest wind 6 to 11 mph, with gusts as high as 33 mph.

Saturday Night

Mostly clear, with a low around 25. Northwest wind 5 to 9 mph becoming light and variable 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 34.

Monday

Sunny, with a high near 66.