Keystone weather live forecast

Tomorrow's maximum temperature in Keystone is expected to be 43°F.

5-day weather forecast updated at 04:02 on Tuesday 15th April 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 Monday 14th April 2025

Expect sunshine and showers in Keystone, South Dakota with a maximum temperature of 43°F, maximum UV of 4 (Moderate) and 12 hours of bright sunshine. There are 0-2 mm of rainfall expected with 15% chance of some rain and a moderate breeze of 14 mph from the north-west.

  • 43°F maximum temperature43
    °F maximum temperature
  • 28°F minimum temperature28
    °F minimum temperature
  • Sunshine and showers
    sunshine and showers
  • 12 hours of bright sunshine12
    hours of sunshine
  • UV (maximum) index 4 (Moderate)4
    UV index (Moderate)
  • 15% chance of some rain15
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • 37°F wind chill37
    °F wind chill
  • Moderate breeze of 14 mph from the North-West14
    mph wind from NW

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Keystone weather for Tuesday 15th April 2025

Expect clear skies in Keystone, South Dakota with a maximum temperature of 66°F, maximum UV of 7 (High) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 6 mph from the west.

  • 66°F maximum temperature66
    °F maximum temperature
  • 32°F minimum temperature32
    °F minimum temperature
  • Clear skies
    clear skies
  • 13 hours of bright sunshine13
    hours of sunshine
  • UV (maximum) index 7 (High)7
    UV index (High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Light breeze of 6 mph from the West6
    mph wind from W

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Keystone weather for Wednesday 16th April 2025

Expect scattered clouds in Keystone, South Dakota with a maximum temperature of 72°F, maximum UV of 6 (High) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 6 mph from the west.

  • 72°F maximum temperature72
    °F maximum temperature
  • 46°F minimum temperature46
    °F minimum temperature
  • Scattered clouds
    scattered clouds
  • 10 hours of bright sunshine10
    hours of sunshine
  • UV (maximum) index 6 (High)6
    UV index (High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Light breeze of 6 mph from the West6
    mph wind from W

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Keystone weather for Thursday 17th April 2025

Expect mostly cloudy with light rain in Keystone, South Dakota with a maximum temperature of 50°F, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 2-5 mm of rainfall expected with 75% chance of some rain and a moderate breeze of 12 mph from the north.

  • 50°F maximum temperature50
    °F maximum temperature
  • 34°F minimum temperature34
    °F minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 75% chance of some rain75
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Moderate breeze of 12 mph from the North12
    mph wind from N

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Keystone weather for Friday 18th April 2025

Expect cloudy with sleet or snow in Keystone, South Dakota with a maximum temperature of 39°F, maximum UV of 3 (Moderate) and 6 hours of bright sunshine. There are 2-5 mm of sleet/snow expected with 40% chance of some sleet or snow and a gentle breeze of 9 mph from the north.

  • 39°F maximum temperature39
    °F maximum temperature
  • 30°F minimum temperature30
    °F minimum temperature
  • Cloudy with sleet or snow
    cloudy with sleet or snow
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 40% chance of some sleet or snow40
    % chance of some sleet or snow
  • 2-5 mm of sleet/snow expected<5
    mm of sleet/snow expected
  • 34°F wind chill34
    °F wind chill
  • Gentle breeze of 9 mph from the North9
    mph wind from N

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