Weather forecast for todayKeystone, SD
Weather forecast for today
Current condition 7:45 am MDT
- 46°F
- Feels like:43°F
Sunny
- Precipitation: 0"
- Wind: 5mphW 280°
- Humidity: 39%
- Dewpoint: 21°F
- Pressure: 30.08"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Currently, sunshine is pouring down, making for a beautiful day.
The temperature is a frosty 46.4°F, the apparent temperature is slightly different, computed to be a chilly 42.8°F. The current temperature is near the lowest predicted 48.2°F for today.
The temperature is a frosty 46.4°F, the apparent temperature is slightly different, computed to be a chilly 42.8°F. The current temperature is near the lowest predicted 48.2°F for today.
Saturday Oct 17, 2026
- 77°F
- 48°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 7mphWSW 257°
- Humidity: 24%
- UV index: 4
- Sunrise: 7:11 am MDT
- Sunset: 6:06 pm MDT
- details ▼
On Saturday, October 17, conditions will remain bright with clear skies.
Temperature readings will considerable fluctuate from a daytime peak of a warm 77°F to a nighttime low of a chilly 48.2°F.
Today, it will be warmer, and the temperature will align more with September's typical maximum of 71.4°F.
Sunrise was at 7:11 am and sunset will be at 6:06 pm; the daylight will last for 10h and 56min.
Temperature readings will considerable fluctuate from a daytime peak of a warm 77°F to a nighttime low of a chilly 48.2°F.
Today, it will be warmer, and the temperature will align more with September's typical maximum of 71.4°F.
Sunrise was at 7:11 am and sunset will be at 6:06 pm; the daylight will last for 10h and 56min.
Hourly overview
Hourly temperatures
Warmest hour: 2 pm 75°C.
Coldest hour: 8 am 48°C.
Coldest hour: 8 am 48°C.
Chance of precipitation
Highest chance: 8 am - 12 am 0%.
Hourly weather forecast
- 8 am
- 48°F
- Feels like:46°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 6mphW 273°
- Humidity: 36%
- Pressure: 30.06"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 9 am
- 55°F
- Feels like:54°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 5mphW 267°
- Humidity: 31%
- Pressure: 30.03"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 10 am
- 63°F
- Feels like:63°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphW 267°
- Humidity: 27%
- Pressure: 30"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 11 am
- 70°F
- Feels like:70°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphWSW 258°
- Humidity: 20%
- Pressure: 29.97"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 12 pm
- 72°F
- Feels like:72°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphWSW 247°
- Humidity: 18%
- Pressure: 29.94"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 1 pm
- 75°F
- Feels like:75°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphSW 233°
- Humidity: 17%
- Pressure: 29.91"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 2 pm
- 75°F
- Feels like:75°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 5mphSW 233°
- Humidity: 16%
- Pressure: 29.88"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 3 pm
- 75°F
- Feels like:75°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 6mphWSW 254°
- Humidity: 16%
- Pressure: 29.85"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 4 pm
- 73°F
- Feels like:73°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 6mphWSW 244°
- Humidity: 19%
- Pressure: 29.85"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 5 pm
- 70°F
- Feels like:70°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 6mphWSW 253°
- Humidity: 25%
- Pressure: 29.85"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 pm
- 64°F
- Feels like:64°F
Mostly Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 6mphW 263°
- Humidity: 32%
- Pressure: 29.88"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:06 pm
- 7 pm
- 61°F
- Feels like:61°F
Mostly Clear
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 6mphW 263°
- Humidity: 32%
- Pressure: 29.88"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 8 pm
- 59°F
- Feels like:57°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 7mphW 260°
- Humidity: 33%
- Pressure: 29.88"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 9 pm
- 57°F
- Feels like:55°F
Mostly Clear
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 9mphW 265°
- Humidity: 33%
- Pressure: 29.88"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 57°F
- Feels like:54°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 9mphW 269°
- Humidity: 35%
- Pressure: 29.88"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 11 pm
- 55°F
- Feels like:54°F
Mostly Clear
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 9mphW 276°
- Humidity: 36%
- Pressure: 29.85"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Today, in Keystone, primarily mostly clear and occasionally cloudy weather is predicted.
The temperature will vary between the lowest temperature of 48.2°F and the highest temperature of 75.2°F. The warmest part of the day will be from 1 pm to 3 pm.
Today, the expected high matches September's average of 71.4°F more than October's. The minimum temperature will be also more alike with September's average low of 51.1°F than October's typical value of 36.7°F.
The temperature will vary between the lowest temperature of 48.2°F and the highest temperature of 75.2°F. The warmest part of the day will be from 1 pm to 3 pm.
Today, the expected high matches September's average of 71.4°F more than October's. The minimum temperature will be also more alike with September's average low of 51.1°F than October's typical value of 36.7°F.
Updated: Oct 17, 2026 @ 13:45:10 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
At 7:45 am MDT, the temperature is 46.4°F.
On Saturday, skies will stay clear and sunny.
Today, the maximum temperature will be 77°F, while the minimum temperature will be 48.2°F.
Today, the highest temperature will be significantly higher than the average maximum of 54°F in October. Today, the lowest temperature will be also notably higher than the average low of 36.7°F.
Today, the highest temperature will be significantly higher than the average maximum of 54°F in October. Today, the lowest temperature will be also notably higher than the average low of 36.7°F.
On Saturday, in Keystone, sunrise was at 7:11 am and sunset will be at 6:06 pm (MDT).
In Keystone, today, there will be 10h and 56min of daylight.
Keystone, South Dakota, USA
- en: Keystone, South Dakota, USA
- es: Keystone, Dakota del Sur, EE.UU.
- hr: Kiston, Južna Dakota, SAD
- mk: Kiston, Južna Dakota, SAD
- sr: Kiston, Južna Dakota, SAD
- zh: 基斯通, 南达科他州, 美国
- Latitude: 43.895544°
- Longitude: -103.418246°
- Elevation: 4331 ft
- Current time: 7:45am MDT
- Sunrise: 7:11 am MDT
- Sunset: 6:06 pm MDT
- Timezone: America/Denver
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