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Grant County, SD Weather Forecast

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Grant County, SD Weather Forecast

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Grant County SD weather - Clear - 68°F
Clear
68°F
Updated 12:42 am
Feels Like 50°F
Humidity 45%
Wind SSW 13 mph
Barometer  29.81 in
Dew Point 46°F
Grant County SD weather - Clear - 20°C
Clear
20°C
Updated 12:42 am
Feels Like 10°C
Humidity 45%
Wind SSW 21 km/h
Barometer  100.9 kPa
Dew Point 8°C
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Grant County Weather Forecast

REST OF TONIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT SUNDAY
Grant County, SD Weather - Rest Of Tonight Mostly Clear Grant County, SD Weather - Tuesday Mostly Sunny Grant County, SD Weather - Tuesday Night Partly Cloudy Grant County, SD Weather - Wednesday Partly Sunny Grant County, SD Weather - Wednesday Night Partly Cloudy Grant County, SD Weather - Thursday Partly Cloudy Grant County, SD Weather - Thursday Night Partly Cloudy Grant County, SD Weather - Friday Partly Cloudy Grant County, SD Weather - Friday Night Partly Cloudy Grant County, SD Weather - Saturday Partly Cloudy Grant County, SD Weather - Saturday Night Partly Cloudy Grant County, SD Weather - Sunday Partly Sunny
Mostly Clear Mostly Sunny Partly Cloudy Partly Sunny Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Sunny
Lo: 60°FLo: 16°C Hi: 80°FHi: 27°C
 Lo: 50°FLo: 10°C Hi: 71°FHi: 22°C
 Lo: 45°FLo: 7°C Hi: 65°FHi: 18°C
Lo: 45°FLo: 7°C		 Hi: 65°FHi: 18°C
Lo: 45°FLo: 7°C		 Hi: 71°FHi: 22°C
Lo: 55°FLo: 13°C		 Hi: 71°FHi: 22°C
Lo: 55°FLo: 13°C		 Hi: 75°FHi: 24°C
Lo: 55°FLo: 13°C		 Hi: 75°FHi: 24°C
Lo: 55°FLo: 13°C		 Hi: 61°FHi: 16°C
POP = Probability of Precipitation.
Weather Outlook Updated: 1117 PM CDT Mon Oct 05 2026 Grant County, SD Weather - WeatherWorld.com

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Grant County Forecast Discussion

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Instant definitions for any meteorological term.

Issued: 1236 AM CDT Tue Oct 6 2026

Key Messages

  • Above normal temperatures and dry conditions expected through Saturday.
  • Pattern change developing during the weekend leading to cooler temperatures next week.

Discussion

... Issued at 1228 AM CDT Tue Oct 6 2026

The front is slowly moving across the James valley and will eventually traverse the rest of the CWA by daylight. Cold advection is rather weak, and BUFKIT profiles indicate there will be an extremely shallow inversion to start the day, with temperatures in the 50s. Thus, with fav...