Air Quality Concerns; Fire Weather; Extreme Heat; Severe Thunderstorms and Flash Flooding

Wildfire smoke continues to result in poor air quality from the Upper Midwest into the Northeast. Dangerous heat and fire weather concerns for portions of the Four Corners region into the central Great Basin and Rockies. Heavy rainfall and flash flooding possible for the Southeast through today. Strong to severe thunderstorms for the Southern Plains with severe wind gusts and large hail possible. Read More >

Current conditions at

Sisseton, Sisseton Municipal Airport (K8D3)

Lat: 45.67°NLon: 96.99°WElev: 1161ft.

76°F

24°C

Humidity	72%
Wind Speed	SE 10 mph
Barometer	30.04 in (1015.8 mb)
Dewpoint	66°F (19°C)
Visibility	NA
Heat Index	78°F (26°C)
Last update	4 Aug 3:56 pm CDT

More Information:

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

Extended Forecast for

Grenville SD

This Afternoon
High: 73 °F
Chance
T-storms
Tonight
Low: 62 °F
Chance
T-storms
Tuesday
High: 76 °F
Chance
T-storms
Tuesday Night
Low: 65 °F
T-storms
Likely then
Showers
Wednesday
High: 81 °F
Chance
T-storms
Wednesday Night
Low: 68 °F
Mostly Clear
Thursday
High: 85 °F
Mostly Sunny
Thursday Night
Low: 70 °F
Chance
Showers then
Chance
T-storms
Friday
High: 85 °F
Slight Chance
T-storms

Detailed Forecast

This Afternoon

A chance of showers and thunderstorms. Mostly cloudy, with a high near 73. South southeast wind around 15 mph. Chance of precipitation is 30%.

Tonight

A chance of showers and thunderstorms before 3am, then a slight chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 62. South southeast wind 10 to 13 mph. Chance of precipitation is 30%.

Tuesday

A chance of showers and thunderstorms, mainly between 3pm and 5pm. Partly sunny, with a high near 76. South southeast wind 10 to 18 mph, with gusts as high as 32 mph. Chance of precipitation is 40%.

Tuesday Night

Showers and thunderstorms likely, then showers and possibly a thunderstorm after 10pm. Low around 65. Southeast wind 16 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Wednesday

A chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 81. South southwest wind 9 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

Wednesday Night

Mostly clear, with a low around 68. South wind around 7 mph.

Thursday

Mostly sunny, with a high near 85. South southeast wind 6 to 13 mph, with gusts as high as 23 mph.

Thursday Night

A chance of showers, with thunderstorms also possible after 1am. Partly cloudy, with a low around 70. South southeast wind 10 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.

Friday

A slight chance of showers and thunderstorms. Partly sunny, with a high near 85. South southeast wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

Friday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 40%.

Saturday

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

Saturday Night

Partly cloudy, with a low around 62.

Sunday

Mostly sunny, with a high near 79.