Keystone weather live forecast

Today's maximum temperature in Keystone is expected to be 72°F. Select a day from the live weather forecast for Keystone, South Dakota, USA for more weather parameters.

5-day weather forecast updated at 04:05 on Monday 3rd November 2025 GMT

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The 5-day weather forecast for South Dakota (Keystone) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Keystone weather forecast by day

Below are the detailed weather forecasts for Keystone for the next 5 days.

Keystone weather for Sunday 2nd November 2025

Expect scattered clouds in Keystone, South Dakota with a maximum temperature of 72°F, maximum UV of 3 (Moderate) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 11 mph from the west.

  • 72°F maximum temperature72
    °F maximum temperature
  • 39°F minimum temperature39
    °F minimum temperature
  • Scattered clouds
    scattered clouds
  • 10 hours of bright sunshine10
    hours of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 72°F wind chill72
    °F wind chill
  • Gentle breeze of 11 mph from the West11
    mph wind from W

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Keystone weather for Monday 3rd November 2025

Expect scattered clouds in Keystone, South Dakota with a maximum temperature of 52°F, maximum UV of 3 (Moderate) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 11 mph from the south.

  • 52°F maximum temperature52
    °F maximum temperature
  • 36°F minimum temperature36
    °F minimum temperature
  • Scattered clouds
    scattered clouds
  • 4 hours of bright sunshine4
    hours of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 52°F wind chill52
    °F wind chill
  • Gentle breeze of 11 mph from the South11
    mph wind from S

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Keystone weather for Tuesday 4th November 2025

Expect scattered clouds in Keystone, South Dakota with a maximum temperature of 66°F, maximum UV of 3 (Moderate) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 9 mph from the west.

  • 66°F maximum temperature66
    °F maximum temperature
  • 43°F minimum temperature43
    °F minimum temperature
  • Scattered clouds
    scattered clouds
  • 9 hours of bright sunshine9
    hours of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Gentle breeze of 9 mph from the West9
    mph wind from W

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Keystone weather for Wednesday 5th November 2025

Expect broken clouds in Keystone, South Dakota with a maximum temperature of 55°F, maximum UV of 3 (Moderate) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 12 mph from the south.

  • 55°F maximum temperature55
    °F maximum temperature
  • 37°F minimum temperature37
    °F minimum temperature
  • Broken clouds
    broken clouds
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 55°F wind chill55
    °F wind chill
  • Gentle breeze of 12 mph from the South12
    mph wind from S

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Keystone weather for Thursday 6th November 2025

Expect broken clouds in Keystone, South Dakota with a maximum temperature of 57°F, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 13 mph from the north-west.

  • 57°F maximum temperature57
    °F maximum temperature
  • 43°F minimum temperature43
    °F minimum temperature
  • Broken clouds
    broken clouds
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Moderate breeze of 13 mph from the North-West13
    mph wind from NW

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Expires at 23:59 on Wednesday 31st Dec 2025

Metric (°C)  |  Imperial (°F)

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