Keystone weather live forecast

Today's maximum temperature in Keystone is expected to be 17°C. Select a day from the live weather forecast for Keystone, South Dakota, USA for more weather parameters.

Saturday
7th Nov
17

4

7

2
Sunday
8th Nov
19

4

9

3
Monday
9th Nov
14

4

9

2
Tuesday
10th Nov
15

4

6

2
Wednesday
11th Nov
15

5

6

2

5-day weather forecast updated at 04:02 on Saturday 7th November 2026 GMT

More about Keystone

Keystone by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for South Dakota

GO Airport Shuttle discount code: 5% off airport transfers

Discount Code

Save EXTRA 5% on airport transfers worldwide
Book private taxis & shuttle buses with discount code
Enter in coupon box on 'Reservations' page

Show discount code

******WEB

Redeem GO Airport Shuttle discount code >>

Expires at 23:59 on Thursday 31st Dec 2026

The 5-day weather forecast for South Dakota (Keystone) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Keystone weather forecast by day

Below are the detailed weather forecasts for Keystone for the next 5 days.

Keystone weather for Saturday 7th November 2026

Expect scattered clouds in Keystone, South Dakota with a maximum temperature of 17°C, maximum UV of 2 (Low) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the west.

17
°C maximum temperature
4
°C minimum temperature
scattered clouds
7
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
17
°C wind chill
12
kph wind from W

Keystone weather for Sunday 8th November 2026

Expect clear skies in Keystone, South Dakota with a maximum temperature of 19°C, maximum UV of 3 (Moderate) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 18 kph from the south-west.

19
°C maximum temperature
4
°C minimum temperature
clear skies
9
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
18
kph wind from SW

Keystone weather for Monday 9th November 2026

Expect scattered clouds in Keystone, South Dakota with a maximum temperature of 14°C, maximum UV of 2 (Low) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 8 kph from the north-west.

14
°C maximum temperature
4
°C minimum temperature
scattered clouds
9
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
14
°C wind chill
8
kph wind from NW

Keystone weather for Tuesday 10th November 2026

Expect scattered clouds in Keystone, South Dakota with a maximum temperature of 15°C, maximum UV of 2 (Low) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the west.