Custer County, SD Weather Forecast

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Custer County, SD Weather Forecast

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Custer County SD weather  - Clear - 69°F
Clear
69°F
Updated 2:48 pm
Feels Like 60°F
Humidity 28%
Wind WSW 10 mph
Barometer  30.15 in
Dew Point 35°F
Custer County SD weather  - Clear - 21°C
Clear
21°C
Updated 2:48 pm
Feels Like 16°C
Humidity 28%
Wind WSW 16 km/h
Barometer  102.1 kPa
Dew Point 2°C

Custer County Weather Forecast

THIS AFTERNOON TONIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT
Custer County, SD Weather - This Afternoon Sunny Custer County, SD Weather - Tonight Clear Custer County, SD Weather - Wednesday Mostly Sunny Custer County, SD Weather - Wednesday Night Mostly Clear Custer County, SD Weather - Thursday Partly Cloudy Custer County, SD Weather - Thursday Night Partly Cloudy Custer County, SD Weather - Friday Partly Cloudy Custer County, SD Weather - Friday Night Chance Of Rain Custer County, SD Weather - Saturday Clearing Custer County, SD Weather - Saturday Night Mostly Clear Custer County, SD Weather - Sunday Sunny Custer County, SD Weather - Sunday Night Mostly Clear
Sunny Clear Mostly Sunny Mostly Clear Partly Cloudy Partly Cloudy Partly Cloudy Chance of Rain Clearing Mostly Clear Sunny Mostly Clear
Hi: 70°FHi: 21°C
Lo: 45°FLo: 7°C Hi: 69°FHi: 21°C
Lo: 49°FLo: 9°C Hi: 71°FHi: 22°C
Lo: 55°FLo: 13°C Hi: 69°FHi: 21°C
Lo: 41°FLo: 5°C Hi: 51°FHi: 11°C
Lo: 35°FLo: 2°C Hi: 51°FHi: 11°C
Lo: 35°FLo: 2°C
POP: 30%
POP = Probability of Precipitation.
Weather Outlook Updated: 1232 PM MDT Tue Oct 20 2026 Custer County, SD Weather - WeatherWorld.com

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Custer County Forecast Discussion

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Issued: 1254 PM MDT Tue Oct 20 2026

Key Messages

  • Warm and dry weather through much of this week.

Discussion

...(This Evening Through Tuesday) Issued at 1254 PM MDT Tue Oct 20 2026

Current upper level analysis shows broad ridging over the central and western US with deepening trof off the west coast. The CWA sits under upper level southwest flow and clear skies. Sfc stations report light southerly winds across much of western SD with temperatures in the 60s to low 70s.

Weak front will cross the CWA overnight with the only impacts being ...