Weather forecast for 10 daysJefferson, SD
Weather forecast for the weekend
Sunday Oct 18, 2026
- 70°F
- 41°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 17mphS 182°
- Humidity: 44%
- UV index: 4
- Sunrise: 7:43 am CDT
- Sunset: 6:39 pm CDT
- details ▼
Today, expect sunny weather with a crisp, clear sky.
Day and night temperatures will contrast sharply, from a maximum of a delightful 69.8°F to a minimum of a cold 41°F.
Today, the forecasted high of 69.8°F is more in line with September's average of 76.1°F than October's 59.9°F.
Sunrise was at 7:43 am and sunset will be at 6:39 pm; the daylight will last for 10h and 56min.
Day and night temperatures will contrast sharply, from a maximum of a delightful 69.8°F to a minimum of a cold 41°F.
Today, the forecasted high of 69.8°F is more in line with September's average of 76.1°F than October's 59.9°F.
Sunrise was at 7:43 am and sunset will be at 6:39 pm; the daylight will last for 10h and 56min.
10-day overview
Daily temperatures
Warmest period: Thursday - Friday 77°C.
Coldest period: Sunday - Monday 63°C.
Coldest period: Sunday - Monday 63°C.
Chance of precipitation
Highest chance: Saturday 41%.
Long-term weather forecast
- Sunday
- Oct 18, 2026
- 70°F
- 41°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 17mphS 182°
- Humidity: 44%
- UV index: 4
- Sunrise: 7:43 am CDT
- Sunset: 6:39 pm CDT
- details ▼
- Monday
- Oct 19, 2026
- 68°F
- 43°F
Mostly Sunny
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 10mphSE 142°
- Humidity: 62%
- UV index: 4
- Sunrise: 7:44 am CDT
- Sunset: 6:37 pm CDT
- details ▼
- Tuesday
- Oct 20, 2026
- 72°F
- 50°F
Sunny
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 14mphSSE 156°
- Humidity: 58%
- UV index: 4
- Sunrise: 7:45 am CDT
- Sunset: 6:36 pm CDT
- details ▼
- Wednesday
- Oct 21, 2026
- 75°F
- 50°F
Mostly Sunny
- Precip. probability: 15%
- Precipitation: 0"
- Wind: 8mphS 175°
- Humidity: 64%
- UV index: 4
- Sunrise: 7:46 am CDT
- Sunset: 6:34 pm CDT
- details ▼
- Thursday
- Oct 22, 2026
- 77°F
- 57°F
Partly Cloudy
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 11mphSE 143°
- Humidity: 65%
- UV index: 3
- Sunrise: 7:48 am CDT
- Sunset: 6:33 pm CDT
- details ▼
- Friday
- Oct 23, 2026
- 77°F
- 61°F
Mostly Cloudy / Wind
- Precip. probability: 17%
- Precipitation: 0.04"
- Wind: 21mphSSE 155°
- Humidity: 53%
- UV index: 3
- Sunrise: 7:49 am CDT
- Sunset: 6:31 pm CDT
- details ▼
- Saturday
- Oct 24, 2026
- 70°F
- 46°F
Showers
- Precip. probability: 41%
- Precipitation: 0.16"
- Wind: 13mphSW 216°
- Humidity: 59%
- UV index: 2
- Sunrise: 7:50 am CDT
- Sunset: 6:30 pm CDT
- details ▼
- Sunday
- Oct 25, 2026
- 63°F
- 48°F
Mostly Sunny
- Precip. probability: 17%
- Precipitation: 0.04"
- Wind: 8mphNE 56°
- Humidity: 66%
- UV index: 3
- Sunrise: 7:51 am CDT
- Sunset: 6:28 pm CDT
- details ▼
- Monday
- Oct 26, 2026
- 63°F
- 52°F
AM Showers
- Precip. probability: 30%
- Precipitation: 0.04"
- Wind: 11mphSE 130°
- Humidity: 76%
- UV index: 3
- Sunrise: 7:52 am CDT
- Sunset: 6:27 pm CDT
- details ▼
- Tuesday
- Oct 27, 2026
- 66°F
- 50°F
Mostly Cloudy
- Precip. probability: 20%
- Precipitation: 0"
- Wind: 13mphSSE 153°
- Humidity: 69%
- UV index: 2
- Sunrise: 7:54 am CDT
- Sunset: 6:26 pm CDT
- details ▼
During the ten-day period, mostly clear, cloudy and rainy weather is predicted.
Rainfall is forecasted for Friday through next Monday.
There will be a considerable variation in temperature in the upcoming period. Forecast highs will fluctuate between 62.6°F and 77°F, while the lowest nightly temperature differences will be also quite pronounced, as the minimum temperature is expected to range between 41°F and 60.8°F.
Thursday and Friday, with the highest temperature of 77°F, will be the warmest days; next Sunday and Monday, with the highest temperature of 62.6°F, will be the coldest days.
Rainfall is forecasted for Friday through next Monday.
There will be a considerable variation in temperature in the upcoming period. Forecast highs will fluctuate between 62.6°F and 77°F, while the lowest nightly temperature differences will be also quite pronounced, as the minimum temperature is expected to range between 41°F and 60.8°F.
Thursday and Friday, with the highest temperature of 77°F, will be the warmest days; next Sunday and Monday, with the highest temperature of 62.6°F, will be the coldest days.
Updated: Oct 18, 2026 @ 13:59:12 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, in Jefferson, clear skies and sunshine are anticipated.
Today, the maximum temperature will be 69.8°F, while the minimum temperature will be 41°F.
The maximum temperature will be significantly higher than the average highest temperature of 59.9°F in October. The lowest temperature today will be in line with the average low temperature.
The maximum temperature will be significantly higher than the average highest temperature of 59.9°F in October. The lowest temperature today will be in line with the average low temperature.
On Sunday, in Jefferson, sunrise was at 7:43 am and sunset will be at 6:39 pm (CDT).
In Jefferson, South Dakota, the length of the day today will be 10h and 56min.
