Heavy to Excessive Rainfall and Flooding Threats in the Central and Eastern U.S.; Heat and Fire Weather Concerns in the West

Thunderstorms producing excessive rainfall and potential flooding concerns will continue through tonight from the Southern Plains to the East Coast. Areas of greatest concern for flooding are over central Texas and the Mid-Atlantic. Heat will continue to build across the West through Tuesday. Heat Advisories and Extreme Heat Warnings are in effect. Fire Weather concerns continue through Monday. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Sisseton, Sisseton Municipal Airport (K8D3)

Lat: 45.67°NLon: 96.99°WElev: 1161ft.

60°F

16°C

Humidity	90%
Wind Speed	S 3 mph
Barometer	29.96 in (1012.9 mb)
Dewpoint	57°F (14°C)
Visibility	NA
Last update	14 Jul 4:56 am CDT

More Information:

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

Extended Forecast for

Grenville SD

Today
High: 87 °F
Sunny
Tonight
Low: 68 °F
Mostly Clear
then Chance
T-storms
Tuesday
High: 78 °F
Chance
Showers then
Chance
T-storms
Tuesday Night
Low: 58 °F
Showers
Wednesday
High: 63 °F
Chance
Showers
Wednesday Night
Low: 54 °F
Slight Chance
T-storms then
Chance
Showers
Thursday
High: 68 °F
Partly Sunny
Thursday Night
Low: 55 °F
Mostly Cloudy
Friday
High: 72 °F
Slight Chance
T-storms then
Chance
Showers

Detailed Forecast

Today

Sunny, with a high near 87. South southeast wind 5 to 13 mph, with gusts as high as 21 mph.

Tonight

A chance of showers and thunderstorms after 2am. Increasing clouds, with a low around 68. South southeast wind 10 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.

Tuesday

A chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 78. Southeast wind 9 to 15 mph becoming northwest in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 40%.

Tuesday Night

Showers and possibly a thunderstorm. Low around 58. North northeast wind 14 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

Wednesday

A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 63. North northeast wind around 16 mph, with gusts as high as 28 mph. Chance of precipitation is 40%.

Wednesday Night

A slight chance of showers and thunderstorms, then a chance of showers after 10pm. Mostly cloudy, with a low around 54. North northeast wind 9 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

Thursday

Partly sunny, with a high near 68. East northeast wind around 9 mph.

Thursday Night

Mostly cloudy, with a low around 55. East wind around 8 mph becoming south southeast after midnight.

Friday

A chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 72. South southeast wind 8 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.

Friday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Chance of precipitation is 50%.

Saturday

A slight chance of showers. Mostly sunny, with a high near 76. Chance of precipitation is 20%.

Saturday Night

A slight chance of showers and thunderstorms. Partly cloudy, with a low around 60. Chance of precipitation is 20%.

Sunday

A slight chance of showers and thunderstorms. Mostly sunny, with a high near 77. Chance of precipitation is 20%.