Keystone weather live forecast

Today's maximum temperature in Keystone is expected to be 32°F. Select a day from the live weather forecast for Keystone, South Dakota, USA for more weather parameters.

5-day weather forecast updated at 04:03 on Tuesday 25th 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 Tuesday 25th November 2025

Expect scattered clouds in Keystone, South Dakota with a maximum temperature of 32°F and 8 hours of bright sunshine. There are 0 cm of snow expected and a fresh breeze of 24 mph from the north-west.

  • 32°F maximum temperature32
    °F maximum temperature
  • 21°F minimum temperature21
    °F minimum temperature
  • Scattered clouds
    scattered clouds
  • 8 hours of bright sunshine8
    hours of sunshine
  • No UV (maximum) index0
    UV index (None)
  • 0 cm of snow expected0
    cm of snow expected
  • 19°F wind chill19
    °F wind chill
  • Fresh breeze of 24 mph from the North-West24
    mph wind from NW

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Keystone weather for Wednesday 26th November 2025

Expect broken clouds in Keystone, South Dakota with a maximum temperature of 36°F, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 4 mph from the west.

  • 36°F maximum temperature36
    °F maximum temperature
  • 21°F minimum temperature21
    °F minimum temperature
  • Broken clouds
    broken clouds
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 32°F wind chill32
    °F wind chill
  • Little or no wind of 4 mph from the West4
    mph wind from W

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Keystone weather for Thursday 27th November 2025

Expect mostly cloudy with light snow in Keystone, South Dakota with a maximum temperature of 37°F, maximum UV of 1 (Low) and 3 hours of bright sunshine. There are 0-2 cm of snow expected with 25% chance of some snow and a light breeze of 5 mph from the south-east.

  • 37°F maximum temperature37
    °F maximum temperature
  • 25°F minimum temperature25
    °F minimum temperature
  • Mostly cloudy with light snow
    mostly cloudy with light snow
  • 3 hours of bright sunshine3
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 25% chance of some snow25
    % chance of some snow
  • 0-2 cm of snow expected<2
    cm of snow expected
  • 32°F wind chill32
    °F wind chill
  • Light breeze of 5 mph from the South-East5
    mph wind from SE

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Keystone weather for Friday 28th November 2025

Expect cloudy with some snow in Keystone, South Dakota with a maximum temperature of 36°F, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 10-20 cm of snow expected with 47% chance of some snow and a light breeze of 7 mph from the north.

  • 36°F maximum temperature36
    °F maximum temperature
  • 23°F minimum temperature23
    °F minimum temperature
  • Cloudy with some snow
    cloudy with some snow
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 47% chance of some snow47
    % chance of some snow
  • 10-20 cm of snow expected<20
    cm of snow expected
  • 30°F wind chill30
    °F wind chill
  • Light breeze of 7 mph from the North7
    mph wind from N

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Keystone weather for Saturday 29th November 2025

Expect mostly cloudy with snow in Keystone, South Dakota with a maximum temperature of 27°F, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 10-20 cm of snow expected with 56% chance of some snow and a light breeze of 6 mph from the north.

  • 27°F maximum temperature27
    °F maximum temperature
  • 19°F minimum temperature19
    °F minimum temperature
  • Mostly cloudy with snow
    mostly cloudy with snow
  • 2 hours of bright sunshine2
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 56% chance of some snow56
    % chance of some snow
  • 10-20 cm of snow expected<20
    cm of snow expected
  • 21°F wind chill21
    °F wind chill
  • Light breeze of 6 mph from the North6
    mph wind from N

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