Weather forecast for todayLyons, SD

Weather forecast for today

Current condition 2:09 pm CDT

  • 66°F
  • Feels like:
    66°F
Sunny
Sunny
  • Precipitation: 0"
  • Wind: 14mphS 190°
  • Humidity: 34%
  • Dewpoint: 37°F
  • Pressure: 30.04"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
Currently, a bright sun and a clear sky set the scene for a beautiful day.
The temperature is an enjoyable 66.2°F. The current temperature is almost at the maximum expected 68°F for today.

Sunday Oct 18, 2026

  • 68°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 14mphS 187°
  • Humidity: 37%
  • UV index: 3
  • Sunrise: 7:45 am CDT
  • Sunset: 6:39 pm CDT
  • ▼
On Sunday, in Lyons, a sun-drenched sky is anticipated.
Dramatic temperature shifts from a high of an agreeable 68°F to a low of a wintry 37.4°F are forecasted.
Today, the predicted high will be higher and much closer to September's average high of 74.3°F than October's 57.2°F.
Sunrise was at 7:45 am and sunset will be at 6:39 pm; the daylight will last for 10h and 53min.

Hourly overview

Hourly temperatures

Warmest period: 3 pm - 4 pm 68°C.
Coldest hour: 12 am 46°C.

Chance of precipitation

Highest chance: 12 am 5%.

Hourly weather forecast

  • 3 pm
  • 68°F
  • Feels like:
    68°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 14mphSSW 193°
  • Humidity: 35%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 4 pm
  • 68°F
  • Feels like:
    68°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 12mphSSW 193°
  • Humidity: 35%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 5 pm
  • 66°F
  • Feels like:
    66°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphSSW 192°
  • Humidity: 36%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 6 pm
  • 63°F
  • Feels like:
    63°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 5mphS 169°
  • Humidity: 45%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:39 pm
  • 7 pm
  • 59°F
  • Feels like:
    59°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 5mphSE 145°
  • Humidity: 51%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 8 pm
  • 54°F
  • Feels like:
    54°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 4mphESE 122°
  • Humidity: 60%
  • Pressure: 30.09"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 9 pm
  • 52°F
  • Feels like:
    50°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 5mphESE 112°
  • Humidity: 66%
  • Pressure: 30.12"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 50°F
  • Feels like:
    48°F
Clear
Clear
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 5mphESE 106°
  • Humidity: 71%
  • Pressure: 30.15"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 11 pm
  • 48°F
  • Feels like:
    46°F
Mostly Clear
Mostly Clear
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 4mphESE 114°
  • Humidity: 76%
  • Pressure: 30.15"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 12 am
  • 46°F
  • Feels like:
    45°F
Mostly Clear
Mostly Clear
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 4mphESE 109°
  • Humidity: 79%
  • Pressure: 30.18"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
For the rest of Sunday, a cloudless sky and mainly sunshiny weather are expected.
The temperature will be between a minimum of 48.2°F and a maximum of 68°F. The warmest part of the day will be at 3 pm and 4 pm.
Today, the temperature will be closer to September's norm than to October's average of 57.2°F. The lowest temperature is expected to be moderately lower than the average minimum in October, typically 41.2°F.
Updated: Oct 18, 2026 @ 19:09:19 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Currently (2:09 pm CDT) it is 66.2°F in Lyons.

On Sunday, skies are expected to be clear and full of sunshine.

Today, the highest temperature will be 68°F, while the lowest temperature will be 37.4°F.
Today, the maximum temperature will be uncommonly higher than the average highest temperature of 57.2°F in October. The lowest temperature today will be relatively lower than the average low temperature.

On Sunday, in Lyons, sunrise was at 7:45 am and sunset will be at 6:39 pm (CDT).

In Lyons, today, there will be 10h and 53min of daylight.