Weather forecast for 10 daysChelsea, SD
Weather forecast for the weekend
Sunday Oct 18, 2026
- 70°F
- 36°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 14mphNNE 28°
- Humidity: 28%
- UV index: 3
- Sunrise: 7:55 am CDT
- Sunset: 6:44 pm CDT
- details ▼
Today, on Sunday, October 18, conditions will remain bright with clear skies.
Temperatures will see a substantial oscillation, reaching a high of a delightful 69.8°F and dropping to a low of an icy 35.6°F.
Today, it will be warmer, and the temperature will align more with September's typical maximum of 74.3°F.
Sunrise was at 7:55 am and sunset will be at 6:44 pm; the daylight will last for 10h and 50min.
Temperatures will see a substantial oscillation, reaching a high of a delightful 69.8°F and dropping to a low of an icy 35.6°F.
Today, it will be warmer, and the temperature will align more with September's typical maximum of 74.3°F.
Sunrise was at 7:55 am and sunset will be at 6:44 pm; the daylight will last for 10h and 50min.
10-day overview
Daily temperatures
Warmest day: Thursday 77°C.
Coldest day: Sunday 25.10. 54°C.
Coldest day: Sunday 25.10. 54°C.
Chance of precipitation
Highest chance: 24%.
Long-term weather forecast
- Sunday
- Oct 18, 2026
- 70°F
- 36°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 14mphNNE 28°
- Humidity: 28%
- UV index: 3
- Sunrise: 7:55 am CDT
- Sunset: 6:44 pm CDT
- details ▼
- Monday
- Oct 19, 2026
- 68°F
- 39°F
Sunny
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 10mphENE 71°
- Humidity: 53%
- UV index: 3
- Sunrise: 7:56 am CDT
- Sunset: 6:43 pm CDT
- details ▼
- Tuesday
- Oct 20, 2026
- 70°F
- 43°F
Partly Cloudy
- Precip. probability: 18%
- Precipitation: 0"
- Wind: 14mphSSE 163°
- Humidity: 69%
- UV index: 3
- Sunrise: 7:57 am CDT
- Sunset: 6:41 pm CDT
- details ▼
- Wednesday
- Oct 21, 2026
- 70°F
- 43°F
Mostly Sunny
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 9mphNE 40°
- Humidity: 71%
- UV index: 3
- Sunrise: 7:59 am CDT
- Sunset: 6:39 pm CDT
- details ▼
- Thursday
- Oct 22, 2026
- 77°F
- 59°F
Mostly Sunny
- Precip. probability: 9%
- Precipitation: 0"
- Wind: 15mphSSE 149°
- Humidity: 69%
- UV index: 3
- Sunrise: 8:00 am CDT
- Sunset: 6:38 pm CDT
- details ▼
- Friday
- Oct 23, 2026
- 75°F
- 52°F
Partly Cloudy / Wind
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 22mphSSE 160°
- Humidity: 62%
- UV index: 2
- Sunrise: 8:01 am CDT
- Sunset: 6:36 pm CDT
- details ▼
- Saturday
- Oct 24, 2026
- 59°F
- 39°F
Partly Cloudy
- Precip. probability: 13%
- Precipitation: 0"
- Wind: 14mphWNW 286°
- Humidity: 58%
- UV index: 3
- Sunrise: 8:03 am CDT
- Sunset: 6:34 pm CDT
- details ▼
- Sunday
- Oct 25, 2026
- 54°F
- 41°F
Partly Cloudy
- Precip. probability: 17%
- Precipitation: 0.08"
- Wind: 10mphNE 55°
- Humidity: 65%
- UV index: 3
- Sunrise: 8:04 am CDT
- Sunset: 6:33 pm CDT
- details ▼
- Monday
- Oct 26, 2026
- 57°F
- 43°F
Partly Cloudy
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 11mphE 95°
- Humidity: 76%
- UV index: 2
- Sunrise: 8:05 am CDT
- Sunset: 6:31 pm CDT
- details ▼
- Tuesday
- Oct 27, 2026
- 59°F
- 43°F
Mostly Cloudy
- Precip. probability: 20%
- Precipitation: 0"
- Wind: 12mphSSE 147°
- Humidity: 82%
- UV index: 2
- Sunrise: 8:07 am CDT
- Sunset: 6:30 pm CDT
- details ▼
It is expected that a combination of cloud-filled and clear weather is expected.
With a probability of 17%, rainfall is anticipated only on next Sunday. Anticipated precipitation will be minimal at 0.08".
Temperature differences will be noticeable in the coming days. Forecast highs will fluctuate between 53.6°F and 77°F, while the nightly low temperatures will show also a considerable swing, as temperatures overnight will fluctuate from 35.6°F up to 59°F.
Thursday is expected to be the warmest, reaching up to 77°F; expect the coldest day on next Sunday with a high of 53.6°F.
With a probability of 17%, rainfall is anticipated only on next Sunday. Anticipated precipitation will be minimal at 0.08".
Temperature differences will be noticeable in the coming days. Forecast highs will fluctuate between 53.6°F and 77°F, while the nightly low temperatures will show also a considerable swing, as temperatures overnight will fluctuate from 35.6°F up to 59°F.
Thursday is expected to be the warmest, reaching up to 77°F; expect the coldest day on next Sunday with a high of 53.6°F.
Updated: Oct 18, 2026 @ 19:48:11 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
Today, expect sunny weather with a crisp, clear sky.
Today, the maximum temperature will be 69.8°F, while the minimum temperature will be 35.6°F.
The maximum temperature will be notably higher than the average highest temperature of 56.3°F in October. The lowest temperature today will be relatively lower than the average low temperature.
The maximum temperature will be notably higher than the average highest temperature of 56.3°F in October. The lowest temperature today will be relatively lower than the average low temperature.
On Sunday, in Chelsea, sunrise was at 7:55 am and sunset will be at 6:44 pm (CDT).
In Chelsea, South Dakota, the length of the day today will be 10h and 50min.
