Dangerous Heat in the Central and Eastern U.S.; Severe Thunderstorms in the Central U.S. and Northeast; Critical Fire Weather in the Four Corners

Dangerous, record-breaking heat will intensify across most of the central and eastern U.S this week. Heat indices will likely exceed 100 degrees. Severe thunderstorms are forecast from parts of the central High Plains into the Upper Midwest, and across parts of the Northeast. Critical fire weather conditions will continue across portions of the Four Corners and Great Basin. Read More >

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Fair

77°F

25°C

Humidity	30%
Wind Speed	NE 7 mph
Barometer	29.86 in
Dewpoint	43°F (6°C)
Visibility	10.00 mi
Heat Index	78°F (26°C)
Last update	30 Jun 7:15 pm MDT

More Information:

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

Extended Forecast for

7 Miles SSW Spearfish SD

Tonight
Low: 54 °F
Partly Cloudy
then Isolated
T-storms
Wednesday
High: 78 °F
Chance
T-storms
Wednesday Night
Low: 56 °F
Mostly Clear
Thursday
High: 81 °F
Slight Chance
T-storms then
T-storms
Likely
Thursday Night
Low: 55 °F
Partly Cloudy
Friday
High: 83 °F
Mostly Sunny
then Chance
T-storms
Friday Night
Low: 55 °F
Chance
T-storms
Independence Day
High: 80 °F
Mostly Sunny
then Chance
T-storms
Saturday Night
Low: 55 °F
Slight Chance
T-storms then
Mostly Clear

Detailed Forecast

Tonight

Isolated showers and thunderstorms after midnight. Mostly cloudy, with a low around 54. Calm wind. Chance of precipitation is 20%.

Wednesday

A slight chance of showers and thunderstorms before 9am, then a chance of showers and thunderstorms after noon. Mostly sunny, with a high near 78. Light and variable wind. Chance of precipitation is 30%.

Wednesday Night

Mostly clear, with a low around 56. Calm wind becoming south around 5 mph. Winds could gust as high as 15 mph.

Thursday

Showers and thunderstorms likely, mainly after noon. Mostly sunny, with a high near 81. Calm wind becoming south around 5 mph. Winds could gust as high as 15 mph. Chance of precipitation is 60%.

Thursday Night

Partly cloudy, with a low around 55. Light south wind.

Friday

A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 83. Light and variable wind. Winds could gust as high as 15 mph.

Friday Night

A 30 percent chance of showers and thunderstorms, mainly before midnight. Partly cloudy, with a low around 55.

Independence Day

A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 80.

Saturday Night

A slight chance of showers and thunderstorms before midnight. Mostly clear, with a low around 55.

Sunday

A slight chance of showers and thunderstorms after noon. Sunny, with a high near 86.

Sunday Night

A slight chance of showers and thunderstorms. Mostly clear, with a low around 60.

Monday

A chance of showers and thunderstorms. Mostly sunny, with a high near 86.