United States of AmericaCountries United States of America South Dakota Keystone
United States of AmericaUnited States of America South Dakota Keystone
Keystone
Weather averages
ClimateForecastNovemberDecember >>

Keystone (SD) Climate by Month

The graphs below provide an overview of the climate in Keystone (South Dakota), the United States of America. They present long-term patterns and averages of weather conditions over a 30-year period.

Average day and night temperature

The mean minimum and maximum temperatures over the year.

Monthly precipitation

The mean monthly precipitation over the year, including rain, snow, hail etc.

Monthly rainy days

The average number of days each month with rain, snow, hail etc.

Forecast for Keystone (SD)

Thu   Nov 14
15°C | 0°C
W 18 km/h
almost clear and no rain

almost clear and no rain

hourly forecast
Fri   Nov 15
11°C | 0°C
SE 14 km/h
partly cloudy and no rain

partly cloudy and no rain

hourly forecast
Sat   Nov 16
7°C | -1°C
NW 22 km/h
partly cloudy and no rain

partly cloudy and no rain

hourly forecast
5-Day Forecast 10-Day Forecast

The best time of year to visit Keystone in the United States of America

During the months of June and September you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:

  • Does Keystone have a dry season?
    Yes, the months of January, February, November and December are very dry.
  • Which is the warmest month in Keystone?
    July has an average maximum temperature of 28°C and is the warmest month of the year.
  • Which is the coldest month in Keystone?
    The coldest month is February with an average maximum temperature of 3°C.
  • Which is the wettest month in Keystone?
    May tops the wettest month list with 114 mm of rainfall.
  • Which is the driest month in Keystone?
    January is the driest month with 8 mm of precipitation.

    • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.

     

     


    Travel Inspiration