Heat and Severe Thunderstorms in the Eastern U.S.

A widespread heat wave will peak over the South and East today, with several dozen temperature records expected along the East Coast. Heat should begin to ease this weekend in the Northeast, while hazardous heat continues over the South. Severe thunderstorms capable of damaging winds are possible across parts of the Appalachians, Mid Atlantic, and Northeast this afternoon and evening. Read More >

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Fair

66°F

19°C

Humidity	40%
Wind Speed	NE 8 mph
Barometer	29.97 in
Dewpoint	41°F (5°C)
Visibility	10.00 mi
Last update	12 Jun 7:55 pm MDT

More Information:

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

Extended Forecast for

9 Miles SSW Lead SD

Tonight
Low: 37 °F
Mostly Cloudy
Saturday
High: 47 °F
Rain then
Chance Rain
Saturday Night
Low: 30 °F
Frost
Sunday
High: 54 °F
Frost then
Mostly Sunny
Sunday Night
Low: 34 °F
Mostly Clear
Monday
High: 60 °F
Mostly Sunny
Monday Night
Low: 40 °F
Partly Cloudy
Tuesday
High: 66 °F
Partly Sunny
Tuesday Night
Low: 46 °F
Mostly Cloudy
then Chance
Showers

Detailed Forecast

Tonight

Mostly cloudy, with a low around 37. North wind 3 to 5 mph. Winds could gust as high as 20 mph.

Saturday

Rain, mainly before noon. High near 47. Northwest wind 6 to 9 mph, with gusts as high as 26 mph. Chance of precipitation is 80%.

Saturday Night

Widespread frost, mainly after 1am. Otherwise, partly cloudy, with a low around 30. Northwest wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 25 mph.

Sunday

Widespread frost, mainly before 7am. Otherwise, mostly sunny, with a high near 54. Calm wind becoming northwest around 6 mph in the morning. Winds could gust as high as 18 mph.

Sunday Night

Mostly clear, with a low around 34. North wind around 5 mph becoming calm in the evening. Winds could gust as high as 17 mph.

Monday

Mostly sunny, with a high near 60. Light west wind becoming northwest 5 to 10 mph in the morning. Winds could gust as high as 31 mph.

Monday Night

Partly cloudy, with a low around 40.

Tuesday

Partly sunny, with a high near 66.

Tuesday Night

A chance of showers after midnight. Mostly cloudy, with a low around 46.

Wednesday

A chance of showers, with thunderstorms also possible after noon. Mostly sunny, with a high near 60.