Weather forecast for tomorrowLyons, SD
Weather forecast for tomorrow
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.
Hourly overview
Hourly temperatures
Warmest hour: 3 pm 66°C.
Coldest hour: 6 am 43°C.
Coldest hour: 6 am 43°C.
Chance of precipitation
Highest chance: 2%.
Hourly weather forecast
- 12 am
- 48°F
- Feels like:43°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 15mphS 189°
- Humidity: 60%
- Pressure: 30.09"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 46°F
- Feels like:39°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 14mphS 189°
- Humidity: 65%
- Pressure: 30.09"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 45°F
- Feels like:37°F
Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 14mphS 188°
- Humidity: 69%
- Pressure: 30.06"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 43°F
- Feels like:36°F
Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 13mphS 184°
- Humidity: 72%
- Pressure: 30.06"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 7:45 am
- 8 am
- 43°F
- Feels like:36°F
Sunny
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 12mphS 183°
- Humidity: 74%
- Pressure: 30.06"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 am
- 50°F
- Feels like:45°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 14mphS 189°
- Humidity: 60%
- Pressure: 30.06"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 12 pm
- 59°F
- Feels like:57°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 14mphSSW 193°
- Humidity: 45%
- Pressure: 30.06"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 2 pm
- 64°F
- Feels like:63°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 14mphSSW 194°
- Humidity: 39%
- Pressure: 30.03"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 4 pm
- 66°F
- Feels like:66°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 12mphSSW 192°
- Humidity: 38%
- Pressure: 30"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 6 pm
- 63°F
- Feels like:63°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 6mphS 172°
- Humidity: 44%
- Pressure: 30.03"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:39 pm
- 8 pm
- 55°F
- Feels like:54°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 5mphSE 141°
- Humidity: 57%
- Pressure: 30.09"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 50°F
- Feels like:48°F
Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 5mphSE 143°
- Humidity: 69%
- Pressure: 30.12"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, on Sunday, a cloudless sky and mainly sunshiny weather are expected.
The temperature will be between the lowest temperature of 42.8°F and the highest temperature of 66.2°F. The feels-like temperature will be between the lowest temperature of 35.6°F and the highest temperature of 66.2°F. The warmest part of the day will be at 3 pm and 4 pm.
Tomorrow, temperatures will be more close to the climate of September than the usual maximum in October. The lowest temperature is expected to be relatively lower than the average minimum in October, typically 41.2°F.
The temperature will be between the lowest temperature of 42.8°F and the highest temperature of 66.2°F. The feels-like temperature will be between the lowest temperature of 35.6°F and the highest temperature of 66.2°F. The warmest part of the day will be at 3 pm and 4 pm.
Tomorrow, temperatures will be more close to the climate of September than the usual maximum in October. The lowest temperature is expected to be relatively lower than the average minimum in October, typically 41.2°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.
