Weekend and 10-day weather forecast
Keystone, SD

On Saturday, in Keystone, mostly sunny weather and a cloudless sky are expected.
The temperature is anticipated to vary between a chilly 44.6°F (7°C) and a freezing 24.8°F (-4°C).
On Saturday, it will be warmer and the maximum temperature of 44.6°F (7°C) will be more in line with March's average highest temperature of 43.9°F (6.6°C) than the average highest temperature of 31.5°F (-0.3°C) in February.
Sunrise will be at 7:07 am and sunset at 5:08 pm; the daylight will last for 10h and 1min.

On Sunday, February 5, the sky will be partially clouded.
The highest temperature will be a chilly 46.4°F (8°C), while the lowest temperature will be a cold 32°F (0°C).
It will be warmer, and the highest temperature on Sunday will be more in line with March's average maximum of 43.9°F (6.6°C) than February's of 31.5°F (-0.3°C).
Sunrise will be at 7:05 am and sunset at 5:09 pm; the daylight will last for 10h and 4min.

For the next ten days, a combination of cloudy and occasionally sunny weather is anticipated.
Rainfall is not forecasted in Keystone in the upcoming period.
Temperature fluctuation will be substantial in the upcoming days. The highest temperature will vary between 30.2°F (-1°C) and 51.8°F (11°C), while the lowest nightly temperature differences will be also substantial, as the minimum temperature will vary between 17.6°F (-8°C) and 33.8°F (1°C).
The warmest day will be Friday, with a maximum of 51.8°F (11°C); the coldest day will be Thursday, with a maximum of 30.2°F (-1°C).