Weather forecast for 10 daysLyons, SD
Weather forecast for the weekend
Sunday Oct 18, 2026
- 66°F
- 37°F
Sunny
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 15mphS 189°
- Humidity: 51%
- UV index: 3
- Sunrise: 7:45 am CDT
- Sunset: 6:39 pm CDT
- details ▼
On Sunday, October 18, sunny skies are also in store, with excellent visibility.
A notable temperature range, reaching a high of an enjoyable 66.2°F and a low of an icy 37.4°F, is anticipated.
Weather conditions lean warmer, with the temperature tracking September's average high of 74.3°F.
Sunrise will be at 7:45 am and sunset at 6:39 pm; tomorrow's daylight will last for 10h and 53min.
A notable temperature range, reaching a high of an enjoyable 66.2°F and a low of an icy 37.4°F, is anticipated.
Weather conditions lean warmer, with the temperature tracking September's average high of 74.3°F.
Sunrise will be at 7:45 am and sunset at 6:39 pm; tomorrow's daylight will last for 10h and 53min.
10-day overview
Daily temperatures
Warmest period: Thursday - Friday 75°C.
Coldest day: Sunday 25.10. 63°C.
Coldest day: Sunday 25.10. 63°C.
Chance of precipitation
Highest chance: Saturday 24.10. 34%.
Long-term weather forecast
- Saturday
- Oct 17, 2026
- min.
- 41°F
Clear / Wind
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 21mphS 187°
- Humidity: 57%
- UV index: 0
- Sunrise: 7:44 am CDT
- Sunset: 6:40 pm CDT
- details ▼
- Sunday
- Oct 18, 2026
- 66°F
- 37°F
Sunny
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 15mphS 189°
- Humidity: 51%
- UV index: 3
- Sunrise: 7:45 am CDT
- Sunset: 6:39 pm CDT
- details ▼
- Monday
- Oct 19, 2026
- 66°F
- 43°F
Mostly Sunny
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 11mphESE 122°
- Humidity: 65%
- UV index: 3
- Sunrise: 7:47 am CDT
- Sunset: 6:37 pm CDT
- details ▼
- Tuesday
- Oct 20, 2026
- 68°F
- 46°F
Sunny
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 16mphSSE 161°
- Humidity: 65%
- UV index: 3
- Sunrise: 7:48 am CDT
- Sunset: 6:36 pm CDT
- details ▼
- Wednesday
- Oct 21, 2026
- 72°F
- 46°F
Mostly Sunny
- Precip. probability: 15%
- Precipitation: 0"
- Wind: 8mphS 171°
- Humidity: 69%
- UV index: 3
- Sunrise: 7:49 am CDT
- Sunset: 6:34 pm CDT
- details ▼
- Thursday
- Oct 22, 2026
- 75°F
- 55°F
Mostly Sunny
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 11mphSE 146°
- Humidity: 70%
- UV index: 3
- Sunrise: 7:50 am CDT
- Sunset: 6:32 pm CDT
- details ▼
- Friday
- Oct 23, 2026
- 75°F
- 59°F
Partly Cloudy / Wind
- Precip. probability: 18%
- Precipitation: 0"
- Wind: 22mphSSE 157°
- Humidity: 63%
- UV index: 3
- Sunrise: 7:52 am CDT
- Sunset: 6:31 pm CDT
- details ▼
- Saturday
- Oct 24, 2026
- 70°F
- 46°F
PM Showers
- Precip. probability: 34%
- Precipitation: 0.08"
- Wind: 16mphS 189°
- Humidity: 63%
- UV index: 2
- Sunrise: 7:53 am CDT
- Sunset: 6:29 pm CDT
- details ▼
- Sunday
- Oct 25, 2026
- 63°F
- 46°F
Partly Cloudy
- Precip. probability: 14%
- Precipitation: 0"
- Wind: 9mphNNW 348°
- Humidity: 68%
- UV index: 3
- Sunrise: 7:54 am CDT
- Sunset: 6:28 pm CDT
- details ▼
- Monday
- Oct 26, 2026
- 64°F
- 48°F
Partly Cloudy
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 12mphSE 135°
- Humidity: 67%
- UV index: 3
- Sunrise: 7:55 am CDT
- Sunset: 6:26 pm CDT
- details ▼
Models point to a combination of bright, overcast and wet weather is expected.
With a 34% probability, rainfall is expected only on next Saturday. The precipitation will be minimal at 0.08".
Temperature differences will be noticeable in the next ten days. Maximum temperatures are forecasted between 62.6°F and 75.2°F, while the nightly low temperatures will show also a considerable swing, as temperatures overnight will fluctuate from 37.4°F up to 59°F.
Thursday and Friday, with the highest temperature of 75.2°F, will be the warmest days; the coldest day will be next Sunday, with a maximum of 62.6°F.
With a 34% probability, rainfall is expected only on next Saturday. The precipitation will be minimal at 0.08".
Temperature differences will be noticeable in the next ten days. Maximum temperatures are forecasted between 62.6°F and 75.2°F, while the nightly low temperatures will show also a considerable swing, as temperatures overnight will fluctuate from 37.4°F up to 59°F.
Thursday and Friday, with the highest temperature of 75.2°F, will be the warmest days; the coldest day will be next Sunday, with a maximum of 62.6°F.
Updated: Oct 17, 2026 @ 21:53:26 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
Tomorrow, sunshine is expected with little to no cloud cover.
Tomorrow, the highest temperature will be 66.2°F, while the lowest temperature will be 37.4°F.
The highest temperature will be a couple of degrees higher than the average maximum of 57.2°F in October. The lowest temperature tomorrow will be also moderately lower than the average low temperature.
The highest temperature will be a couple of degrees higher than the average maximum of 57.2°F in October. The lowest temperature tomorrow will be also moderately lower than the average low temperature.
On Sunday, in Lyons, sunrise will be at 7:45 am and sunset at 6:39 pm (CDT).
In Lyons, South Dakota, tomorrow, there will be 10h and 53min of daylight.
