Weather forecast for 10 days
Keystone, SD

Weather forecast for the weekend

Saturday, Apr 19.

Sunny
6:01 am

7:44 pm
MDT
Sunny
54°F / 32°F
  • Wind: 11mph SW
  • Humidity: 25%
  • Precip. probability: 0%
  • Precipitation: 0"
  • UV index: 6
Today, in Keystone, sunshine is forecasted under mostly clear skies.
The highest temperature will be a fresh 53.6°F, while the lowest expected temperature is a wintry 32°F.
This predicted maximum temperature is expected to mirror April's typical high of 50.9°F.
Sunrise was at 6:01 am and sunset will be at 7:44 pm; the daylight will last for 13h and 43min.

Sunday, Apr 20.

Mostly Sunny
5:59 am

7:45 pm
MDT
Mostly Sunny
61°F / 36°F
  • Wind: 10mph N
  • Humidity: 29%
  • Precip. probability: 2%
  • Precipitation: 0"
  • UV index: 6
Tomorrow, on Sunday, April 20, sunshine will dominate, with only occasional cloud cover.
Temperatures are predicted to range from a maximum of a breezy 60.8°F to a minimum of a cold 35.6°F.
The forecast high of 60.8°F is more in line with May's average of 61°F than April's 50.9°F.
Sunrise will be at 5:59 am and sunset at 7:45 pm; tomorrow's daylight will last for 13h and 46min.

Frequently asked questions

What is the weather forecast for Keystone for tomorrow?
On Sunday, golden sunshine will carry through the day.
What will be the maximum temperature tomorrow?
Tomorrow, the highest temperature in Keystone will be 60.8°F, while the lowest temperature will be 35.6°F.
The maximum temperature will be significantly higher than the average highest temperature of 50.9°F in April. The lowest temperature tomorrow will be in line with the average low temperature.
When are sunrise and sunset tomorrow?
On Sunday, in Keystone, sunrise will be at 5:59 am and sunset at 7:45 pm (MDT).
How long will the day be tomorrow?
In Keystone, tomorrow, there will be 13h and 46min of daylight.
What is the weather forecast for Keystone for the next ten days?
In Keystone, a combination of cloudy, clear and rainy weather is anticipated for the next ten days.
Will it rain in the next ten days?
Rain is forecasted for Wednesday through Friday, next Sunday and Monday in Keystone. With light precipitation of 0.2", Wednesday and Thursday will be the wettest days.
How warm will it be in the next ten days in Keystone?
The maximum temperature will vary between 51.8°F and 64.4°F, as the minimum temperature will vary between 32°F and 46.4°F.
What will be the warmest and the coldest days?
With a maximum temperature of 64.4°F, next Sunday and Monday will be the warmest days. The coldest days will be Thursday and Friday, with a maximum of 51.8°F.

Long-term weather forecast

SatApr 19.
  • 54°F
  • 32°F
Sunny
Sunny
  • Wind: 11mph SW
  • Humidity: 25%
  • UV index: 6
  • Precip. probability: 0%
  • Precipitation: 0"
  • 6:01 am 7:44 pm MDT
SunApr 20.
  • 61°F
  • 36°F
Mostly Sunny
Mostly Sunny
  • Wind: 10mph N
  • Humidity: 29%
  • UV index: 6
  • Precip. probability: 2%
  • Precipitation: 0"
  • 5:59 am 7:45 pm MDT
MonApr 21.
  • 61°F
  • 34°F
Partly Cloudy
Partly Cloudy
  • Wind: 16mph SW
  • Humidity: 44%
  • UV index: 6
  • Precip. probability: 24%
  • Precipitation: 0"
  • 5:58 am 7:46 pm MDT
TueApr 22.
  • 57°F
  • 34°F
Mostly Sunny
Mostly Sunny
  • Wind: 10mph WNW
  • Humidity: 34%
  • UV index: 6
  • Precip. probability: 3%
  • Precipitation: 0"
  • 5:56 am 7:47 pm MDT
WedApr 23.
  • 54°F
  • 36°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 11mph E
  • Humidity: 47%
  • UV index: 5
  • Precip. probability: 24%
  • Precipitation: 0.2"
  • 5:54 am 7:48 pm MDT
ThuApr 24.
  • 52°F
  • 39°F
Showers
Showers
  • Wind: 9mph E
  • Humidity: 70%
  • UV index: 4
  • Precip. probability: 48%
  • Precipitation: 0.2"
  • 5:53 am 7:50 pm MDT
FriApr 25.
  • 52°F
  • 45°F
AM Showers
AM Showers
  • Wind: 12mph SSE
  • Humidity: 69%
  • UV index: 5
  • Precip. probability: 33%
  • Precipitation: 0.04"
  • 5:51 am 7:51 pm MDT
SatApr 26.
  • 61°F
  • 46°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 12mph SSE
  • Humidity: 62%
  • UV index: 5
  • Precip. probability: 24%
  • Precipitation: 0"
  • 5:50 am 7:52 pm MDT
SunApr 27.
  • 64°F
  • 46°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 12mph SSE
  • Humidity: 56%
  • UV index: 5
  • Precip. probability: 24%
  • Precipitation: 0.12"
  • 5:48 am 7:53 pm MDT
MonApr 28.
  • 64°F
  • 41°F
PM Showers
PM Showers
  • Wind: 12mph NW
  • Humidity: 44%
  • UV index: 7
  • Precip. probability: 32%
  • Precipitation: 0.12"
  • 5:47 am 7:54 pm MDT
During the ten-day period, cloud-filled, sun-filled and rain-soaked weather is expected.
Rain is forecasted for Wednesday through Friday, next Sunday and Monday. The days with the most rainfall will be Wednesday and Thursday, with light precipitation of 0.2".
Significant changes in temperature are expected over the next several days. The temperature is expected to swing from 51.8°F up to 64.4°F, while the nightly low temperatures will show also a considerable swing, as the minimum temperature is expected to range between 32°F and 46.4°F.
The warmest days will be next Sunday and Monday, with a maximum of 64.4°F; the coldest days will be Thursday and Friday, with a maximum of 51.8°F.
Updated: Apr 19, 2025 @ 15:39:32 UTC
Published by: Weather U.S. | About Us
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