Gannvalley, South Dakota Weather
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Weather Forecast for Gannvalley, South Dakota : Buffalo County
Issued: 12:45 am CDT Jun 3, 2025 Latitude: 44.0333265 Longitude: -98.9878745 View on Google Maps

MouseOver for Detail Forecast
Overnight Tuesday Wednesday Thursday Friday Saturday Sunday Monday
40% chance of rain on Overnight Partly Sunny on Tuesday Increasing Clouds on Wednesday 40% chance of rain on Thursday 20% chance of on Friday 40% chance of thunderstorms on Saturday Mostly Sunny on Sunday Sunny on Monday
Low: 50°F High: 71°F High: 71°F High: 68°F High: 73°F High: 79°F High: 75°F High: 76°F
Low: 48°F Low: 50°F Low: 50°F Low: 52°F Low: 56°F Low: 50°F  
Rain Partly Sunny Increasing Clouds Rain Partly Sunny Thunderstorms Mostly Sunny Sunny
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Current Conditions at
CHAMBERLAIN - (K9V9)
54°
Cloudy
Light Rain
as of 12:55 AM CDST
Rel. Humidity: 93%
Dew Point: 52°F
Visibility: 10 Miles
Pressure: 29.93 in.
Flight Rule: VFR
Wind Data
12 MPH
350° North
Cloud Level(s): Solid Overcast at 10000ft
Current Conditions at
HURON - (KHON)
55°
Cloudy
Light Rain
as of 12:55 AM CDST
Rel. Humidity: 76%
Dew Point: 48°F
Visibility: 10 Miles
Pressure: 29.92 in.
Flight Rule: VFR
Wind Data
10 MPH
340° North
Cloud Level(s): Solid Overcast at 10000ft
Current Conditions at
MITCHELL - (KMHE)
55°
Mostly Cloudy
Light Rain
as of 12:53 AM CDST
Rel. Humidity: 76%
Dew Point: 48°F
Visibility: 10 Miles
Pressure: 29.88 in.
Flight Rule: VFR
Wind Data
15 MPH
Gust: 24 MPH
340° North
Cloud Level(s): Broken at 8500ft, Broken at 12000ft
40% chance of rain Overnight Overnight... A chance of showers, mainly before 2am. Cloudy, with a low around 50. North wind around 11 mph. Chance of precipitation is 40%.
Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 71. North northwest wind around 14 mph, with gusts as high as 23 mph.
Mostly Clear on Tuesday Night Tuesday Night... Mostly clear, with a low around 48. North wind 5 to 10 mph becoming light and variable after midnight.
Increasing Clouds on Wednesday Wednesday... Increasing clouds, with a high near 71. Calm wind becoming south southwest 5 to 8 mph in the morning.
20% chance of rain Wednesday Night Wednesday Night... A slight chance of showers. Mostly cloudy, with a low around 50. Southeast wind 5 to 8 mph. Chance of precipitation is 20%.
40% chance of rain Thursday Thursday... A chance of showers, mainly after 1pm. Mostly cloudy, with a high near 68. East southeast wind 6 to 10 mph. Chance of precipitation is 40%.
40% chance of thunderstorms Thursday Night Thursday Night... A chance of showers and thunderstorms. Mostly cloudy, with a low around 50. East southeast wind 5 to 8 mph. Chance of precipitation is 40%.
20% chance of Friday Friday... A slight chance of showers after 1pm. Partly sunny, with a high near 73. Southeast wind 5 to 9 mph. Chance of precipitation is 20%.
20% chance of rain Friday Night Friday Night... A slight chance of showers after 1am. Partly cloudy, with a low around 52. Southeast wind around 8 mph. Chance of precipitation is 20%.
40% chance of thunderstorms Saturday Saturday... A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 79. Chance of precipitation is 40%.
30% chance of thunderstorms Saturday Night Saturday Night... A chance of showers and thunderstorms. Partly cloudy, with a low around 56. Chance of precipitation is 30%.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 75.
Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 50.
Sunny on Monday Monday... Sunny, with a high near 76.
Sun Almanac for Gannvalley, South Dakota
Sunrise: 05:55 AM
Sunset: 9:14 PM
Civil Sunrise:05:19 AM
Civil Sunset: 9:49 PM
Nautical Sunrise: 04:33 AM
Nautical Sunset: 10:36 PM
Astro Sunrise: 03:35 AM
Astro Sunset: 11:33 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.