Heavy Rainfall and Flooding in the Mid-Atlantic; Heat and Wildfire Concerns in the West

Slow moving showers and thunderstorms may result in flash flooding for portions of the mid-Atlantic region through tonight. Meanwhile, excessive heat will continue to build across the West through Tuesday. Heat Advisories and Extreme Heat Warnings are in effect. Fire Weather concerns continue for the West with dry and breezy conditions. Watching the tropics across the Southeast. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

A Few Clouds

77°F

25°C

Humidity	44%
Wind Speed	SW 6 mph
Barometer	29.92 in
Dewpoint	54°F (12°C)
Visibility	10.00 mi
Heat Index	78°F (26°C)
Last update	14 Jul 9:35 pm MDT

More Information:

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

Extended Forecast for

Lead SD

Tonight
Low: 58 °F
Chance
T-storms
Tuesday
High: 68 °F
Slight Chance
T-storms then
T-storms
Likely
Tuesday Night
Low: 49 °F
Showers
Wednesday
High: 52 °F
Showers
Wednesday Night
Low: 46 °F
Chance
Showers
Thursday
High: 72 °F
Decreasing
Clouds
Thursday Night
Low: 55 °F
Slight Chance
T-storms then
Chance
Showers
Friday
High: 77 °F
Mostly Sunny
then Slight
Chance
T-storms
Friday Night
Low: 55 °F
Chance
T-storms

Detailed Forecast

Tonight

A 40 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 58. Southwest wind around 5 mph, with gusts as high as 15 mph.

Tuesday

Showers and thunderstorms likely, mainly after 3pm. Increasing clouds, with a high near 68. Southwest wind 5 to 10 mph becoming northeast in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 60%.

Tuesday Night

Showers and possibly a thunderstorm. Low around 49. East wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 90%.

Wednesday

Showers and possibly a thunderstorm. Steady temperature around 52. East wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 90%.

Wednesday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 46. East wind around 5 mph becoming southeast after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 50%.

Thursday

Mostly cloudy, then gradually becoming sunny, with a high near 72. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.

Thursday Night

A 30 percent chance of showers and thunderstorms, mainly after midnight. Partly cloudy, with a low around 55. Southeast wind 5 to 10 mph becoming southwest after midnight. Winds could gust as high as 20 mph.

Friday

A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 77. Southwest wind around 5 mph becoming north in the afternoon. Winds could gust as high as 15 mph.

Friday Night

A chance of showers and thunderstorms. Partly cloudy, with a low around 55.

Saturday

A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 79.

Saturday Night

A chance of showers and thunderstorms. Partly cloudy, with a low around 57.

Sunday

A chance of showers and thunderstorms. Mostly sunny, with a high near 82.

Sunday Night

A chance of showers and thunderstorms. Partly cloudy, with a low around 60.

Monday

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