Keystone weather in February 2026

Expect daytime maximum temperatures of 3°C in Keystone, South Dakota in February based on long-term weather averages. There are 6 hours of sunshine per day on average, which might fall as snow.

  • 3°C maximum daytime temperature in February in Keystone3
    3°C max day temperature
  • 6 hours of sunshine per day
  • 8 days with some rainfall in February in Keystone8
    8 days with some rainfall
  • -10°C minimum night-time temperature in February in Keystone-10
    -10°C min night temperature
  • 11 hours of daylight per day in February in Keystone11
    11 hours of daylight per day
  • No heat & humidity in February in Keystone0
    No heat & humidity
  • 13 mm monthly rainfall in February in Keystone13
    13 mm of monthly rainfall
  • UV (maximum) index 2 (Low) in February in Keystone2
    2 (Low) UV index

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The February weather guide for South Dakota (Keystone) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

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

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How cold is it in Keystone in February?

Daytime temperatures usually reach 3°C in Keystone in February, falling to -10°C at night.

How sunny is it in Keystone in February?

There are normally 6 hours of bright sunshine each day in Keystone in February - that's 60% of daylight hours.

Does it rain in Keystone in February?

There are usually 8 days with some rain in Keystone in February and the average monthly rainfall is 13mm. Rain may fall as snow in this month.

Keystone February sunrise & sunset times

Browse the sunrise and sunset times for Keystone in February 2026. Select a month to view Keystone sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Sunday, 1st February 2026 07:11 17:04
Saturday, 14th February 2026 06:54 17:22
Saturday, 28th February 2026 06:32 17:41

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