Weather forecast for 10 days
Keystone, SD

On Saturday, April 20, mainly clouded weather is expected.
The temperature scale will run from a maximum of a frosty 42.8°F (6°C) to a minimum of a subzero 28.4°F (-2°C).
The highest temperature on Saturday will be lower and more in line with March's average maximum of 43.9°F (6.6°C) than the average maximum of 50.9°F (10.5°C) in April.
Sunrise will be at 6:00 am and sunset at 7:44 pm; the daylight will last for 13h and 43min.

On Sunday, in Keystone, mostly bright and sunny weather is expected.
Temperature is predicted to swing from a high of a comfortable 62.6°F (17°C) to a low of an icy 41°F (5°C).
The highest temperature will be higher and more in line with May's average maximum of 61°F (16.1°C) than the average maximum of 50.9°F (10.5°C) in April.
Sunrise will be at 5:59 am and sunset at 7:45 pm; the daylight will last for 13h and 46min.

The weather will be unstable for the next ten days, and a mix of cloudy, sunny, rainy and stormy weather is anticipated.
Rainfall is forecasted for next Thursday through next Saturday. With light precipitation of 0.28" (7mm), most rainfall is expected on next Friday.
Temperature fluctuation will be substantial in the next ten days. The maximum temperature will vary between 42.8°F (6°C) and 69.8°F (21°C), while the lowest nightly temperature fluctuation will be also considerable, as the lowest temperature will range between 21.2°F (-6°C) and 48.2°F (9°C).
With the highest temperature of 69.8°F (21°C), next Thursday will be the warmest day; Friday and Saturday, with the highest temperature of 42.8°F (6°C), will be the coldest days in Keystone, South Dakota.