Heavy Rainfall Threat for Portions of Mid-Atlantic and Northeast; Heat Linger for Southeast and Expands for the West

Moisture and nearby frontal boundary will focus more showers and thunderstorms for portions of the Mid-Atlantic and Northeast today. Rainfall could be locally heavy resulting instances of flash flooding. Meanwhile, the heat lingers for areas of the Southeast and expands across the Western U.S. the next several days. Between these areas, severe thunderstorms possible for the Plains and Midwest. Read More >

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Fair

86°F

30°C

Humidity	29%
Wind Speed	N 12 mph
Barometer	30.13 in
Dewpoint	50°F (10°C)
Visibility	10.00 mi
Heat Index	84°F (29°C)
Last update	6 Jul 11:35 am MDT

More Information:

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

Extended Forecast for

7 Miles SSW Lead SD

Today
High: 78 °F
Sunny
Tonight
Low: 56 °F
Mostly Cloudy
then Chance
T-storms
Tuesday
High: 79 °F
Mostly Cloudy
then Severe
Thunderstorms
Tuesday Night
Low: 55 °F
Severe
Thunderstorms
then Chance
T-storms
Wednesday
High: 74 °F
Mostly Sunny
then Chance
T-storms
Wednesday Night
Low: 53 °F
Chance
T-storms then
Partly Cloudy
Thursday
High: 74 °F
Chance
T-storms
Thursday Night
Low: 49 °F
Chance
T-storms then
Mostly Clear
Friday
High: 79 °F
Sunny then
Slight Chance
T-storms

Detailed Forecast

Today

Sunny, with a high near 78. North wind around 6 mph, with gusts as high as 21 mph.

Tonight

A chance of showers and thunderstorms between midnight and 3am. Mostly cloudy, with a low around 56. East wind around 6 mph becoming calm in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 40%.

Tuesday

A 30 percent chance of showers and thunderstorms, mainly after 3pm. Some of the storms could be severe. Partly sunny, with a high near 79. Light and variable wind. Winds could gust as high as 18 mph.

Tuesday Night

Showers and thunderstorms likely, mainly before midnight. Some of the storms could be severe. Mostly cloudy, with a low around 55. Calm wind. Winds could gust as high as 15 mph. Chance of precipitation is 70%.

Wednesday

A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 74. Light and variable wind.

Wednesday Night

A 30 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 53. Calm wind.

Thursday

A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 74.

Thursday Night

A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 49.

Friday

A slight chance of showers and thunderstorms after noon. Sunny, with a high near 79.

Friday Night

Mostly clear, with a low around 55.