Heat in the Central U.S.; Heavy Rain Possible for South Texas; Monitoring Erin Tropical Impacts

Hot temperatures are forecast over the Plains and into the lower Mississippi River Valley Friday where Heat Advisories have been issued. Heavy rain from a disturbance in the western Gulf could bring flooding to south Texas. Erin could bring tropical storm conditions and heavy rain to Puerto Rico and the USVI this weekend with dangerous surf and rip currents impacting the western Atlantic Basin. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Fair

82°F

28°C

Humidity	48%
Wind Speed	N 8 G 16 mph
Barometer	29.95 in
Dewpoint	61°F (16°C)
Visibility	10.00 mi
Heat Index	82°F (28°C)
Last update	14 Aug 6:55 pm MDT

More Information:

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

Extended Forecast for

7 Miles SSW Lead SD

Tonight
Low: 53 °F
Chance
T-storms
Friday
High: 77 °F
Mostly Sunny
then Chance
T-storms
Friday Night
Low: 54 °F
Slight Chance
T-storms then
Mostly Cloudy
Saturday
High: 74 °F
Partly Sunny
then Chance
T-storms
Saturday Night
Low: 52 °F
Slight Chance
T-storms then
Partly Cloudy
Sunday
High: 77 °F
Sunny then
Chance
T-storms
Sunday Night
Low: 53 °F
Slight Chance
T-storms then
Mostly Clear
Monday
High: 77 °F
Sunny then
Slight Chance
T-storms
Monday Night
Low: 54 °F
Mostly Clear

Detailed Forecast

Tonight

A 40 percent chance of showers and thunderstorms, mainly before 2am. Mostly cloudy, with a low around 53. Calm wind.

Friday

A 30 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 77. Calm wind becoming south around 5 mph in the morning. Winds could gust as high as 15 mph.

Friday Night

A 20 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 54. Southeast wind around 5 mph becoming calm in the evening.

Saturday

A 40 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 74. Calm wind becoming southeast around 5 mph in the afternoon. Winds could gust as high as 15 mph.

Saturday Night

A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 52. Southeast wind around 5 mph becoming calm in the evening.

Sunday

A chance of showers between noon and 3pm, then a chance of showers and thunderstorms after 3pm. Sunny, with a high near 77. Calm wind becoming southeast around 5 mph. Chance of precipitation is 30%.

Sunday Night

A 20 percent chance of showers and thunderstorms before midnight. Mostly clear, with a low around 53. East wind around 5 mph becoming calm.

Monday

A slight chance of showers and thunderstorms after noon. Sunny, with a high near 77. Calm wind becoming northeast around 5 mph.

Monday Night

Mostly clear, with a low around 54.

Tuesday

Sunny, with a high near 80.

Tuesday Night

Mostly clear, with a low around 55.

Wednesday

Sunny, with a high near 81.