Weather forecast for 10 daysChelsea, SD
Weather forecast for the weekend
Sunday Oct 18, 2026
- 70°F
- 36°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 13mphNE 35°
- Humidity: 41%
- UV index: 3
- Sunrise: 7:55 am CDT
- Sunset: 6:44 pm CDT
- details ▼
Today, on Sunday, October 18, expect consistent sunshine and open skies.
Considerable temperature fluctuations from a high of a delightful 69.8°F to a low of an icy 35.6°F are predicted.
Today, the expected high of 69.8°F is expected to reflect September's average high 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.
Considerable temperature fluctuations from a high of a delightful 69.8°F to a low of an icy 35.6°F are predicted.
Today, the expected high of 69.8°F is expected to reflect September's average high 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 period: Thursday - Friday 75°C.
Minimum temperature: 57°C.
Minimum temperature: 57°C.
Chance of precipitation
Highest chance: Friday 23%.
Long-term weather forecast
- Sunday
- Oct 18, 2026
- 70°F
- 36°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 13mphNE 35°
- Humidity: 41%
- 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 72°
- Humidity: 52%
- UV index: 3
- Sunrise: 7:56 am CDT
- Sunset: 6:43 pm CDT
- details ▼
- Tuesday
- Oct 20, 2026
- 70°F
- 43°F
Sunny
- Precip. probability: 9%
- Precipitation: 0"
- Wind: 14mphSSE 162°
- Humidity: 68%
- UV index: 3
- Sunrise: 7:57 am CDT
- Sunset: 6:41 pm CDT
- details ▼
- Wednesday
- Oct 21, 2026
- 70°F
- 41°F
Sunny
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 9mphNNE 30°
- Humidity: 70%
- UV index: 3
- Sunrise: 7:59 am CDT
- Sunset: 6:39 pm CDT
- details ▼
- Thursday
- Oct 22, 2026
- 75°F
- 59°F
Mostly Sunny
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 12mphSE 136°
- Humidity: 71%
- 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: 23%
- Precipitation: 0"
- Wind: 22mphSSE 160°
- Humidity: 59%
- UV index: 2
- Sunrise: 8:01 am CDT
- Sunset: 6:36 pm CDT
- details ▼
- Saturday
- Oct 24, 2026
- 59°F
- 37°F
Partly Cloudy
- Precip. probability: 15%
- Precipitation: 0"
- Wind: 15mphWNW 299°
- Humidity: 63%
- UV index: 2
- Sunrise: 8:03 am CDT
- Sunset: 6:34 pm CDT
- details ▼
- Sunday
- Oct 25, 2026
- 57°F
- 41°F
Mostly Sunny
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 9mphENE 76°
- Humidity: 62%
- UV index: 3
- Sunrise: 8:04 am CDT
- Sunset: 6:33 pm CDT
- details ▼
- Monday
- Oct 26, 2026
- 59°F
- 45°F
Partly Cloudy
- Precip. probability: 22%
- Precipitation: 0"
- Wind: 12mphSE 125°
- Humidity: 74%
- UV index: 2
- Sunrise: 8:05 am CDT
- Sunset: 6:31 pm CDT
- details ▼
- Tuesday
- Oct 27, 2026
- 57°F
- 43°F
Partly Cloudy
- Precip. probability: 22%
- Precipitation: 0"
- Wind: 14mphSE 127°
- Humidity: 77%
- UV index: 2
- Sunrise: 8:07 am CDT
- Sunset: 6:30 pm CDT
- details ▼
It is expected that a combination of mostly clear and cloudy weather is anticipated.
Rainfall is not predicted in Chelsea in the upcoming days.
Expect a substantial fluctuation in daytime highs in the coming days. Forecast highs will fluctuate between 57.2°F and 75.2°F, while the variation in nighttime lows will be also notably wide, as the overnight lows will vary from 35.6°F to 59°F.
With a maximum temperature of 75.2°F, Thursday and Friday will be the warmest days; next Sunday and Tuesday, with the highest temperature of 57.2°F, will be the coldest days.
Rainfall is not predicted in Chelsea in the upcoming days.
Expect a substantial fluctuation in daytime highs in the coming days. Forecast highs will fluctuate between 57.2°F and 75.2°F, while the variation in nighttime lows will be also notably wide, as the overnight lows will vary from 35.6°F to 59°F.
With a maximum temperature of 75.2°F, Thursday and Friday will be the warmest days; next Sunday and Tuesday, with the highest temperature of 57.2°F, will be the coldest days.
Updated: Oct 18, 2026 @ 15:17:22 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, conditions will remain bright with clear skies.
Today, the maximum temperature will be 69.8°F, while the minimum temperature will be 35.6°F.
The maximum temperature today will be uncommonly higher than the average highest temperature of 56.3°F in October. Today, the lowest temperature will be a few degrees lower than the average low temperature.
The maximum temperature today will be uncommonly higher than the average highest temperature of 56.3°F in October. Today, the lowest temperature will be a few degrees 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, today, there will be 10h and 50min of daylight.
