Keystone weather live forecast

Today's maximum temperature in Keystone is expected to be 10°C. Select a day from the live weather forecast for Keystone, South Dakota, USA for more weather parameters.

Saturday
14th Nov
10

4

7

2
Sunday
15th Nov
15

5

10

2
Monday
16th Nov
17

6

8

2
Tuesday
17th Nov
16

5

7

2
Wednesday
18th Nov
9

1

1

2

5-day weather forecast updated at 04:02 on Saturday 14th November 2026 GMT

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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 14th November 2026

Expect scattered clouds in Keystone, South Dakota with a maximum temperature of 10°C, maximum UV of 2 (Low) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the south-west.

10
°C maximum temperature
4
°C minimum temperature
scattered clouds
7
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
0
no heat & humidity
16
kph wind from SW

Keystone weather for Sunday 15th November 2026

Expect clear skies in Keystone, South Dakota with a maximum temperature of 15°C, maximum UV of 2 (Low) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the south-west.

15
°C maximum temperature
5
°C minimum temperature
clear skies
10
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
0
no heat & humidity
11
kph wind from SW

Keystone weather for Monday 16th November 2026

Expect scattered clouds in Keystone, South Dakota with a maximum temperature of 17°C, maximum UV of 2 (Low) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the south-west.

17
°C maximum temperature
6
°C minimum temperature
scattered clouds
8
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
0
no heat & humidity
11
kph wind from SW

Keystone weather for Tuesday 17th November 2026

Expect scattered clouds in Keystone, South Dakota with a maximum temperature of 16°C, maximum UV of 2 (Low) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 9 kph from the west.

16
°C maximum temperature
5
°C minimum temperature
scattered clouds
7
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
16
°C wind chill
9
kph wind from W

Keystone weather for Wednesday 18th November 2026

Expect mostly cloudy with light rain in Keystone, South Dakota with a maximum temperature of 9°C, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 0-2 mm of rainfall expected with 45% chance of some rain and a light breeze of 11 kph from the west.