Weather forecast for tomorrowSummit, SD
Weather forecast for tomorrow
Sunday Oct 18, 2026
- 66°F
- 37°F
Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 17mphWNW 293°
- Humidity: 48%
- UV index: 3
- Sunrise: 7:48 am CDT
- Sunset: 6:37 pm CDT
- details ▼
Tomorrow, on Sunday, October 18, sunshine will likely continue with scattered clouds at most.
Temperature values will vary noticeably, extending from a comfortable 66.2°F to a wintry 37.4°F.
The predicted high will feel warmer, consistent with September's climate average of 72.5°F.
Sunrise will be at 7:48 am and sunset at 6:37 pm; tomorrow's daylight will last for 10h and 49min.
Temperature values will vary noticeably, extending from a comfortable 66.2°F to a wintry 37.4°F.
The predicted high will feel warmer, consistent with September's climate average of 72.5°F.
Sunrise will be at 7:48 am and sunset at 6:37 pm; tomorrow's daylight will last for 10h and 49min.
Hourly overview
Hourly temperatures
Warmest hour: 3 pm 64°C.
Coldest hour: 6 am 45°C.
Coldest hour: 6 am 45°C.
Chance of precipitation
Highest chance: 6 am 2%.
Hourly weather forecast
- 12 am
- 50°F
- Feels like:45°F
Clear / Wind
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 21mphSW 216°
- Humidity: 53%
- Pressure: 29.97"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 48°F
- Feels like:41°F
Mostly Clear / Wind
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 22mphSW 219°
- Humidity: 57%
- Pressure: 29.94"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 46°F
- Feels like:39°F
Mostly Clear / Wind
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 21mphSW 224°
- Humidity: 60%
- Pressure: 29.94"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 45°F
- Feels like:37°F
Partly Cloudy
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 19mphSW 229°
- Humidity: 64%
- Pressure: 29.94"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 7:48 am
- 8 am
- 45°F
- Feels like:37°F
Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 16mphSW 230°
- Humidity: 68%
- Pressure: 29.97"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 am
- 52°F
- Feels like:46°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 13mphWSW 237°
- Humidity: 58%
- Pressure: 30"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 12 pm
- 61°F
- Feels like:59°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 9mphW 269°
- Humidity: 43%
- Pressure: 30"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 2 pm
- 64°F
- Feels like:64°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 7mphNNW 348°
- Humidity: 37%
- Pressure: 30"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 4 pm
- 64°F
- Feels like:64°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 8mphN 4°
- Humidity: 37%
- Pressure: 30"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 6 pm
- 61°F
- Feels like:59°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 7mphNNE 23°
- Humidity: 42%
- Pressure: 30.06"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:37 pm
- 8 pm
- 52°F
- Feels like:52°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 5mphNNE 12°
- Humidity: 53%
- Pressure: 30.12"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 48°F
- Feels like:46°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 6mphNNE 14°
- Humidity: 59%
- Pressure: 30.15"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, primarily dry and sunny and occasionally cloudy weather is forecasted.
The temperature will be between a minimum of 44.6°F and a maximum of 64.4°F. The feels-like temperature will be between a minimum of 37.4°F and a maximum of 64.4°F. The warmest part of the day will be from 2 pm to 4 pm.
Tomorrow, the expected high matches September's average of 72.5°F more than October's. The minimum temperature will be close to October's average low of 40.1°F.
The temperature will be between a minimum of 44.6°F and a maximum of 64.4°F. The feels-like temperature will be between a minimum of 37.4°F and a maximum of 64.4°F. The warmest part of the day will be from 2 pm to 4 pm.
Tomorrow, the expected high matches September's average of 72.5°F more than October's. The minimum temperature will be close to October's average low of 40.1°F.
Updated: Oct 18, 2026 @ 00:13:37 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
On Sunday, skies will stay clear and sunny.
Tomorrow, the maximum temperature will be 66.2°F, while the minimum temperature will be 37.4°F.
Tomorrow, the maximum temperature will be uncommonly higher than the average highest temperature of 55.2°F in October. The lowest temperature will be in line with the average low of 40.1°F.
Tomorrow, the maximum temperature will be uncommonly higher than the average highest temperature of 55.2°F in October. The lowest temperature will be in line with the average low of 40.1°F.
On Sunday, in Summit, sunrise will be at 7:48 am and sunset at 6:37 pm (CDT).
In Summit, tomorrow, there will be 10h and 49min of daylight.
