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Custer State Park, SD Weather Forecast

13329 US Highway 16A, Custer, SD 57730 (605) 255-4515
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Custer State Park, SD Weather Forecast

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Custer State Park SD weather - Clear - 57°F
Clear
57°F
Updated 5:16 am
Feels Like 58°F
Humidity 71%
Wind WNW 5 mph
Barometer  30.2 in
Dew Point 48°F
Custer State Park SD weather - Clear - 14°C
Clear
14°C
Updated 5:16 am
Feels Like 14°C
Humidity 71%
Wind WNW 8 km/h
Barometer  102.2 kPa
Dew Point 9°C
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Custer State Park Weather Forecast

EARLY THIS MORNING TODAY TONIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT SUNDAY
Custer State Park, SD Weather - Early This Morning Partly Cloudy Custer State Park, SD Weather - Today Chance Of T-Storm Custer State Park, SD Weather - Tonight Chance Of T-Storm Custer State Park, SD Weather - Wednesday Chance Of T-Storm Custer State Park, SD Weather - Wednesday Night Clear Custer State Park, SD Weather - Thursday Sunny Custer State Park, SD Weather - Thursday Night Clear Custer State Park, SD Weather - Friday Mostly Sunny Custer State Park, SD Weather - Friday Night Mostly Clear Custer State Park, SD Weather - Saturday Chance Of T-Storm Custer State Park, SD Weather - Saturday Night Chance Of T-Storm Custer State Park, SD Weather - Sunday Chance Of T-Storm
Partly Cloudy Chance of T-Storm Chance of T-Storm Chance of T-Storm Clear Sunny Clear Mostly Sunny Mostly Clear Chance of T-Storm Chance of T-Storm Chance of T-Storm
Hi: 55°FHi: 13°C
 Hi: 75°FHi: 24°C
 Lo: 51°FLo: 11°C Hi: 79°FHi: 26°C
 Lo: 55°FLo: 13°C Hi: 85°FHi: 29°C
 Lo: 59°FLo: 15°C Hi: 81°FHi: 27°C
 Lo: 59°FLo: 15°C Hi: 81°FHi: 27°C
 Lo: 60°FLo: 16°C Hi: 85°FHi: 29°C
POP: 30% POP: 50% POP: 20% POP: 20% POP: 40% POP: 30%
POP = Probability of Precipitation.
Weather Outlook Updated: 327 AM MDT Tue Aug 18 2026 Custer State Park, SD Weather - WeatherWorld.com

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Custer State Park Forecast Discussion

Issued: 459 AM MDT Tue Aug 18 2026

Key Messages

  • Active pattern persists through mid-week with daily chances of storms, some of which may be strong to severe.
  • Trending warmer to end the week into next weekend.

Discussion

...(This Evening Through Monday) Issued at 1200 PM MDT Mon Aug 17 2026

Upper level analysis depicts near-zonal flow over the central US. Upper level moisture associated with a weak wave is making its way over the Northern Plains, resulting in mid to high level cloud cover and scattered sh...