Weather forecast for 10 daysSummit, SD
Weather forecast for the weekend
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.
10-day overview
Daily temperatures
Warmest day: Friday 73°C.
Coldest period: Sunday - Monday 55°C.
Coldest period: Sunday - Monday 55°C.
Chance of precipitation
Highest chance: Saturday 24.10. 51%.
Long-term weather forecast
- Saturday
- Oct 17, 2026
- min.
- 43°F
Partly Cloudy / Wind
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 23mphSW 219°
- Humidity: 54%
- UV index: 0
- Sunrise: 7:47 am CDT
- Sunset: 6:39 pm CDT
- details ▼
- 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 ▼
- Monday
- Oct 19, 2026
- 63°F
- 39°F
Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 11mphENE 74°
- Humidity: 55%
- UV index: 3
- Sunrise: 7:49 am CDT
- Sunset: 6:36 pm CDT
- details ▼
- Tuesday
- Oct 20, 2026
- 68°F
- 45°F
Sunny
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 16mphS 178°
- Humidity: 62%
- UV index: 3
- Sunrise: 7:51 am CDT
- Sunset: 6:34 pm CDT
- details ▼
- Wednesday
- Oct 21, 2026
- 68°F
- 43°F
Mostly Sunny
- Precip. probability: 15%
- Precipitation: 0"
- Wind: 8mphNNW 339°
- Humidity: 66%
- UV index: 3
- Sunrise: 7:52 am CDT
- Sunset: 6:32 pm CDT
- details ▼
- Thursday
- Oct 22, 2026
- 72°F
- 55°F
Mostly Sunny
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 11mphSSE 159°
- Humidity: 66%
- UV index: 3
- Sunrise: 7:53 am CDT
- Sunset: 6:31 pm CDT
- details ▼
- Friday
- Oct 23, 2026
- 73°F
- 57°F
AM Showers / Wind
- Precip. probability: 30%
- Precipitation: 0.04"
- Wind: 22mphS 170°
- Humidity: 63%
- UV index: 2
- Sunrise: 7:55 am CDT
- Sunset: 6:29 pm CDT
- details ▼
- Saturday
- Oct 24, 2026
- 64°F
- 43°F
PM Showers
- Precip. probability: 51%
- Precipitation: 0.16"
- Wind: 19mphSW 216°
- Humidity: 63%
- UV index: 2
- Sunrise: 7:56 am CDT
- Sunset: 6:27 pm CDT
- details ▼
- Sunday
- Oct 25, 2026
- 55°F
- 41°F
Partly Cloudy
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 11mphNW 315°
- Humidity: 63%
- UV index: 3
- Sunrise: 7:57 am CDT
- Sunset: 6:26 pm CDT
- details ▼
- Monday
- Oct 26, 2026
- 55°F
- 45°F
Partly Cloudy
- Precip. probability: 16%
- Precipitation: 0"
- Wind: 12mphESE 115°
- Humidity: 74%
- UV index: 3
- Sunrise: 7:59 am CDT
- Sunset: 6:24 pm CDT
- details ▼
Over the next ten days, a mix of mostly clear, dull and rain-soaked weather is predicted.
Rainfall is anticipated on Friday and next Saturday.
Significant changes in temperature are expected in the upcoming days. Highs will range from 55.4°F to 73.4°F, while the lowest nightly temperature differences will be also quite pronounced, as the minimum temperature is expected to range between 37.4°F and 57.2°F.
With the highest temperature of 73.4°F, Friday will be the warmest day; the coldest days will be next Sunday and Monday, with a maximum of 55.4°F.
Rainfall is anticipated on Friday and next Saturday.
Significant changes in temperature are expected in the upcoming days. Highs will range from 55.4°F to 73.4°F, while the lowest nightly temperature differences will be also quite pronounced, as the minimum temperature is expected to range between 37.4°F and 57.2°F.
With the highest temperature of 73.4°F, Friday will be the warmest day; the coldest days will be next Sunday and Monday, with a maximum of 55.4°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.
