Monitoring Tsunami Impacts Across the Pacific; Air Quality Concerns; Dangerous Heat; Critical Fire Weather for the West

Tsunami impacts continue for portions of the Pacific basin. Wildfire smoke causes unhealthy air in Midwest to Great Lakes. Heat dome spans Mississippi Valley to Mid-Atlantic with excessive heat warnings and advisories. Critical fire weather in Great Basin to Pacific Northwest (dry thunderstorms). Cold front spawns severe storms/heavy rain in Central U.S. today, shifts to East Coast 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

75°F

24°C

Humidity	57%
Wind Speed	E 14 G 20 mph
Barometer	30.31 in
Dewpoint	59°F (15°C)
Visibility	10.00 mi
Last update	30 Jul 3:15 pm MDT

More Information:

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

Extended Forecast for

North Spearfish SD

This Afternoon
High: 74 °F
Slight Chance
T-storms
Tonight
Low: 59 °F
Chance
T-storms then
Chance
Showers
Thursday
High: 74 °F
Chance
T-storms
Thursday Night
Low: 60 °F
Chance
T-storms
Friday
High: 78 °F
Slight Chance
T-storms then
Chance
T-storms
Friday Night
Low: 60 °F
Chance
T-storms then
Mostly Cloudy
Saturday
High: 80 °F
Mostly Sunny
then Chance
T-storms
Saturday Night
Low: 60 °F
Chance
T-storms
Sunday
High: 78 °F
Slight Chance
Showers then
Chance
T-storms

Detailed Forecast

This Afternoon

A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 74. East wind around 10 mph, with gusts as high as 15 mph.

Tonight

A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Southeast wind 5 to 10 mph, with gusts as high as 15 mph.

Thursday

A 30 percent chance of showers and thunderstorms, mainly after noon. Partly sunny, with a high near 74. Southeast wind 5 to 15 mph, with gusts as high as 20 mph.

Thursday Night

A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 60. Southeast wind 5 to 15 mph, with gusts as high as 25 mph.

Friday

A slight chance of showers, then a chance of showers and thunderstorms after 9am. Partly sunny, with a high near 78. Southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.

Friday Night

A 50 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 60. East wind 5 to 10 mph becoming south after midnight. Winds could gust as high as 20 mph.

Saturday

A chance of showers between noon and 3pm, then a chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 80. Calm wind becoming northeast around 5 mph in the afternoon. Chance of precipitation is 30%.

Saturday Night

A chance of showers and thunderstorms, mainly before midnight. Mostly cloudy, with a low around 60. East wind around 5 mph becoming southwest after midnight.

Sunday

A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly sunny, with a high near 78.

Sunday Night

A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 59.

Monday

A slight chance of showers and thunderstorms. Sunny, with a high near 81.

Monday Night

A chance of showers and thunderstorms. Partly cloudy, with a low around 61.

Tuesday

A slight chance of showers and thunderstorms. Mostly sunny, with a high near 83.

Tuesday Night

A slight chance of showers and thunderstorms. Partly cloudy, with a low around 61.