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Jack Lake, SD Weather Forecast

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Jack Lake, SD Weather Forecast

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Jack Lake SD weather - Clear - 68°F
Clear
68°F
Updated 9:01 am
Feels Like 67°F
Humidity 93%
Wind NNW 8 mph
Barometer  30.04 in
Dew Point 66°F
Jack Lake SD weather - Clear - 20°C
Clear
20°C
Updated 9:01 am
Feels Like 19°C
Humidity 93%
Wind NNW 13 km/h
Barometer  101.7 kPa
Dew Point 19°C
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Jack Lake Weather Forecast

REST OF TODAY TONIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT
Jack Lake, SD Weather - Rest Of Today Chance Of T-Storm Jack Lake, SD Weather - Tonight Chance Of T-Storm Jack Lake, SD Weather - Wednesday Chance Of T-Storm Jack Lake, SD Weather - Wednesday Night Mostly Clear Jack Lake, SD Weather - Thursday Sunny Jack Lake, SD Weather - Thursday Night Mostly Clear Jack Lake, SD Weather - Friday Mostly Sunny Jack Lake, SD Weather - Friday Night Mostly Clear Jack Lake, SD Weather - Saturday Partly Cloudy Jack Lake, SD Weather - Saturday Night Chance Of T-Storm Jack Lake, SD Weather - Sunday Chance Of T-Storm Jack Lake, SD Weather - Sunday Night Chance Of T-Storm
Chance of T-Storm Chance of T-Storm Chance of T-Storm Mostly Clear Sunny Mostly Clear Mostly Sunny Mostly Clear Partly Cloudy Chance of T-Storm Chance of T-Storm Chance of T-Storm
Hi: 81°FHi: 27°C
 Lo: 59°FLo: 15°C Hi: 85°FHi: 29°C
 Lo: 59°FLo: 15°C Hi: 89°FHi: 32°C
 Lo: 61°FLo: 16°C Hi: 89°FHi: 32°C
 Lo: 61°FLo: 16°C Hi: 85°FHi: 29°C
 Lo: 61°FLo: 16°C Hi: 85°FHi: 29°C
 Lo: 61°FLo: 16°C
POP: 20% POP: 50% POP: 50% POP: 60% POP: 30% POP: 20%
POP = Probability of Precipitation.
Weather Outlook Updated: 927 AM CDT Tue Aug 18 2026 Jack Lake, SD Weather - WeatherWorld.com

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Jack Lake 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...