Keystone weather live forecast

Tomorrow's maximum temperature in Keystone is expected to be 8°C.

  • Friday
    14th Mar
    Mostly cloudy with light rain (0-2 mm of rainfall expected)
  • Saturday
    15th Mar
    Broken clouds
  • Sunday
    16th Mar
    Scattered clouds
  • Monday
    17th Mar
    Scattered clouds
  • Tuesday
    18th Mar
    Cloudy with sleet or snow (2-5 mm of rainfall expected)

5-day weather forecast updated at 04:02 on Friday 14th March 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 Friday 14th March 2025

Expect mostly cloudy with light rain in Keystone, South Dakota with a maximum temperature of 8°C, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 0-2 mm of rainfall expected with 44% chance of some rain and a fresh breeze of 29 kph from the north-west.

  • 8°C maximum temperature8
    °C maximum temperature
  • -2°C minimum temperature-2
    °C minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 44% chance of some rain44
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • 4°C wind chill4
    °C wind chill
  • Fresh breeze of 29 kph from the North-West29
    kph wind from NW

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Keystone weather for Saturday 15th March 2025

Expect broken clouds in Keystone, South Dakota with a maximum temperature of 6°C, maximum UV of 4 (Moderate) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 21 kph from the north-west.

  • 6°C maximum temperature6
    °C maximum temperature
  • -3°C minimum temperature-3
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 3 hours of bright sunshine3
    hours of sunshine
  • UV (maximum) index 4 (Moderate)4
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 2°C wind chill2
    °C wind chill
  • Moderate breeze of 21 kph from the North-West21
    kph wind from NW

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Keystone weather for Sunday 16th March 2025

Expect scattered clouds in Keystone, South Dakota with a maximum temperature of 12°C, maximum UV of 5 (Moderate) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 23 kph from the west.

  • 12°C maximum temperature12
    °C maximum temperature
  • -2°C minimum temperature-2
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 12°C wind chill12
    °C wind chill
  • Moderate breeze of 23 kph from the West23
    kph wind from W

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Keystone weather for Monday 17th March 2025

Expect scattered clouds in Keystone, South Dakota with a maximum temperature of 18°C, maximum UV of 5 (Moderate) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 24 kph from the west.

  • 18°C maximum temperature18
    °C maximum temperature
  • 6°C minimum temperature6
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 8 hours of bright sunshine8
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 18°C wind chill18
    °C wind chill
  • Moderate breeze of 24 kph from the West24
    kph wind from W

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Keystone weather for Tuesday 18th March 2025

Expect cloudy with sleet or snow in Keystone, South Dakota with a maximum temperature of 5°C, maximum UV of 2 (Low) and no hours of bright sunshine. There are 2-5 mm of sleet/snow expected with 52% chance of some sleet or snow and a moderate breeze of 20 kph from the north.

  • 5°C maximum temperature5
    °C maximum temperature
  • -3°C minimum temperature-3
    °C minimum temperature
  • Cloudy with sleet or snow
    cloudy with sleet or snow
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 52% chance of some sleet or snow52
    % chance of some sleet or snow
  • 2-5 mm of sleet/snow expected<5
    mm of sleet/snow expected
  • 1°C wind chill1
    °C wind chill
  • Moderate breeze of 20 kph from the North20
    kph wind from N

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Metric (°C / mm)  |  Imperial (°F / inches)

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