Thunderstorms and Heavy Rainfall in the Plains; Hazardous Heat in the South and Southeast

Severe thunderstorms will be possible across the northern/central Plains through Tuesday afternoon and from the central Plains to the Mid-Mississippi Valley Tuesday evening through Wednesday morning. Storms may produce large hail and damaging wind gusts, and heavy rainfall may lead to scattered instances of flash flooding. Meanwhile, hazardous heat persists across the South and Southeast. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Sisseton, Sisseton Municipal Airport (K8D3)

Lat: 45.67°NLon: 96.99°WElev: 1161ft.

68°F

20°C

Humidity	90%
Wind Speed	NW 6 mph
Barometer	29.91 in (1011.0 mb)
Dewpoint	65°F (18°C)
Visibility	NA
Last update	17 Aug 10:56 pm CDT

More Information:

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

Extended Forecast for

6 Miles NE Grenville SD

Tonight
Low: 59 °F
Chance
T-storms
Tuesday
High: 75 °F
Slight Chance
T-storms then
Sunny
Tuesday Night
Low: 56 °F
Mostly Clear
Wednesday
High: 77 °F
Sunny then
Slight Chance
Showers
Wednesday Night
Low: 60 °F
Mostly Clear
Thursday
High: 81 °F
Sunny
Thursday Night
Low: 61 °F
Slight Chance
T-storms
Friday
High: 79 °F
Mostly Sunny
Friday Night
Low: 58 °F
Mostly Clear

Detailed Forecast

Tonight

A chance of showers and thunderstorms, mainly after 2am. Mostly cloudy, with a low around 59. North northeast wind 3 to 5 mph. Chance of precipitation is 30%.

Tuesday

A slight chance of showers and thunderstorms before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 75. North northeast wind 5 to 7 mph. Chance of precipitation is 20%.

Tuesday Night

Mostly clear, with a low around 56. North wind 5 to 7 mph becoming light and variable in the evening.

Wednesday

A slight chance of showers after 1pm. Sunny, with a high near 77. South wind 3 to 6 mph. Chance of precipitation is 20%.

Wednesday Night

Mostly clear, with a low around 60. South wind 5 to 8 mph.

Thursday

Sunny, with a high near 81. Southwest wind 9 to 13 mph, with gusts as high as 22 mph.

Thursday Night

A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 61. West northwest wind 6 to 9 mph. Chance of precipitation is 20%.

Friday

Mostly sunny, with a high near 79. North northwest wind 7 to 13 mph, with gusts as high as 23 mph.

Friday Night

Mostly clear, with a low around 58. North wind 6 to 11 mph, with gusts as high as 20 mph.

Saturday

Sunny, with a high near 76.

Saturday Night

Partly cloudy, with a low around 57.

Sunday

Partly sunny, with a high near 77.

Sunday Night

A slight chance of showers and thunderstorms. Partly cloudy, with a low around 61. Chance of precipitation is 20%.