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Keystone weather live forecast
Tomorrow's maximum temperature in Keystone is expected to be 70°F.
-
Tuesday
15th Jul -
Wednesday
16th Jul -
Thursday
17th Jul -
Friday
18th Jul -
Saturday
19th Jul
5-day weather forecast updated at 04:03 on Tuesday 15th July 2025 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 Tuesday 15th July 2025
Expect isolated thunderstorms in Keystone, South Dakota with a maximum temperature of 70°F, maximum UV of 6 (High) and 4 hours of bright sunshine. There are 5-10 mm of rainfall expected with 75% chance of some rain and a gentle breeze of 11 mph from the north.
- °F maximum temperature
- °F minimum temperature
- isolated thunderstorms
- hours of sunshine
- UV index (High)
- % chance of some rain
- mm of rainfall expected
- °F wind chill
- mph wind from N
Keystone weather for Wednesday 16th July 2025
Expect isolated thunderstorms in Keystone, South Dakota with a maximum temperature of 55°F, maximum UV of 3 (Moderate) and no hours of bright sunshine. There are 10-20 mm of rainfall expected with 67% chance of some rain and a light breeze of 6 mph from the north-east.
- °F maximum temperature
- °F minimum temperature
- isolated thunderstorms
- hours of sunshine
- UV index (Moderate)
- % chance of some rain
- mm of rainfall expected
- °F wind chill
- mph wind from NE
Keystone weather for Thursday 17th July 2025
Expect broken clouds in Keystone, South Dakota with a maximum temperature of 70°F, maximum UV of 3 (Moderate) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 9 mph from the south.
- °F maximum temperature
- °F minimum temperature
- broken clouds
- hours of sunshine
- UV index (Moderate)
- mm of rainfall expected
- no heat & humidity
- mph wind from S
Keystone weather for Friday 18th July 2025
Expect isolated thunderstorms in Keystone, South Dakota with a maximum temperature of 79°F, maximum UV of 8 (Very High) and 11 hours of bright sunshine. There are 2-5 mm of rainfall expected with 35% chance of some rain and a light breeze of 7 mph from the north-east.
- °F maximum temperature
- °F minimum temperature
- isolated thunderstorms
- hours of sunshine
- UV index (Very High)
- % chance of some rain
- mm of rainfall expected
- °F wind chill
- mph wind from NE
Keystone weather for Saturday 19th July 2025
Expect isolated thunderstorms in Keystone, South Dakota with a maximum temperature of 77°F, maximum UV of 8 (Very High) and 5 hours of bright sunshine. There are 5-10 mm of rainfall expected with 48% chance of some rain and a light breeze of 7 mph from the south-east.
- °F maximum temperature
- °F minimum temperature
- isolated thunderstorms
- hours of sunshine
- UV index (Very High)
- % chance of some rain
- mm of rainfall expected
- °F wind chill
- mph wind from SE
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Metric (°C) | Imperial (°F)
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