Super Typhoon Sinlaku to Impact the Marianas and Guam; Severe Weather Threat from the Central Plains to the Great Lakes

Super Typhoon Sinlaku will bring destructive winds, widespread heavy rain/flooding, and thunderstorms to the Marianas Islands into Wednesday. Tropical Storm conditions are likely over Guam. Severe thunderstorms and heavy rain are likely across the Upper Mississippi Valley and Great Lakes region with potential for large to very large hail, damaging wind, and tornadoes through Tuesday. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Light Rain

50°F

10°C

Humidity	82%
Wind Speed	N 10 mph
Barometer	29.72 in
Dewpoint	45°F (7°C)
Visibility	1.75 mi
Wind Chill	46°F (8°C)
Last update	13 Apr 9:15 am MDT

More Information:

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

Extended Forecast for

9 Miles SW North Spearfish SD

Today
High: 59 °F
Sunny then
Slight Chance
T-storms
Tonight
Low: 36 °F
Mostly Clear
Tuesday
High: 56 °F
Mostly Sunny
then Chance
Showers
Tuesday Night
Low: 37 °F
Slight Chance
Showers then
Mostly Clear
Wednesday
High: 61 °F
Sunny then
Slight Chance
Showers
Wednesday Night
Low: 45 °F
Mostly Clear
Thursday
High: 60 °F
Mostly Sunny
then Showers
Likely
Thursday Night
Low: 21 °F
Rain/Snow
then Snow
Showers
Friday
High: 32 °F
Snow Showers
Likely

Detailed Forecast

Today

A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 59. Southwest wind 8 to 17 mph, with gusts as high as 31 mph.

Tonight

Mostly clear, with a low around 36. West wind 8 to 13 mph becoming light after midnight. Winds could gust as high as 24 mph.

Tuesday

A 30 percent chance of showers after noon. Mostly sunny, with a high near 56. Light and variable wind becoming northwest around 6 mph. Winds could gust as high as 15 mph.

Tuesday Night

A 20 percent chance of showers before midnight. Mostly clear, with a low around 37. Light and variable wind becoming south around 6 mph after midnight. Winds could gust as high as 15 mph.

Wednesday

A 20 percent chance of showers after noon. Sunny, with a high near 61. Southwest wind around 6 mph, with gusts as high as 18 mph.

Wednesday Night

Mostly clear, with a low around 45. Southwest wind 6 to 11 mph, with gusts as high as 28 mph.

Thursday

Showers likely after noon. Mostly sunny, with a high near 60. Southwest wind 10 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 60%.

Thursday Night

Rain and snow showers, becoming all snow after 9pm. Mostly cloudy, with a low around 21. Northwest wind around 14 mph, with gusts as high as 28 mph.

Friday

Snow showers likely. Mostly cloudy, with a high near 32.

Friday Night

A chance of snow showers, mainly before midnight. Mostly cloudy, with a low around 19.

Saturday

A slight chance of snow showers. Mostly sunny, with a high near 42.

Saturday Night

Partly cloudy, with a low around 27.

Sunday

Sunny, with a high near 58.