Weather forecast for tomorrowGroton, SD
Weather forecast for tomorrow
Monday Oct 19, 2026
- 68°F
- 43°F
Sunny
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 11mphENE 78°
- Humidity: 51%
- UV index: 3
- Sunrise: 7:54 am CDT
- Sunset: 6:40 pm CDT
- details ▼
On Monday, in Groton, the forecast calls for abundant sunshine.
Temperature is expected to swing from a high of an agreeable 68°F to a low of a chilly 42.8°F.
The temperature of 68°F aligns more with what is typical in September than what is normal in October.
Sunrise will be at 7:54 am and sunset at 6:40 pm; tomorrow's daylight will last for 10h and 46min.
Temperature is expected to swing from a high of an agreeable 68°F to a low of a chilly 42.8°F.
The temperature of 68°F aligns more with what is typical in September than what is normal in October.
Sunrise will be at 7:54 am and sunset at 6:40 pm; tomorrow's daylight will last for 10h and 46min.
Hourly overview
Hourly temperatures
Warmest hour: 3 pm 66°C.
Coldest hour: 6 am 37°C.
Coldest hour: 6 am 37°C.
Chance of precipitation
Highest chance: 6 am 3%.
Hourly weather forecast
- 12 am
- 46°F
- Feels like:43°F
Mostly Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 6mphNNE 31°
- Humidity: 60%
- Pressure: 30.21"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 43°F
- Feels like:37°F
Mostly Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 7mphNNE 32°
- Humidity: 70%
- Pressure: 30.24"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 39°F
- Feels like:34°F
Mostly Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 7mphNE 38°
- Humidity: 75%
- Pressure: 30.24"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 37°F
- Feels like:34°F
Partly Cloudy
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 7mphNE 40°
- Humidity: 80%
- Pressure: 30.27"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 7:54 am
- 8 am
- 39°F
- Feels like:34°F
Sunny
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 7mphNE 49°
- Humidity: 79%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 am
- 50°F
- Feels like:46°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 8mphENE 65°
- Humidity: 61%
- Pressure: 30.27"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 12 pm
- 61°F
- Feels like:59°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 10mphE 80°
- Humidity: 41%
- Pressure: 30.24"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 2 pm
- 66°F
- Feels like:66°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 11mphE 94°
- Humidity: 36%
- Pressure: 30.21"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 4 pm
- 66°F
- Feels like:66°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 11mphE 101°
- Humidity: 35%
- Pressure: 30.18"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 6 pm
- 63°F
- Feels like:61°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 10mphE 96°
- Humidity: 42%
- Pressure: 30.15"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:40 pm
- 8 pm
- 54°F
- Feels like:52°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 8mphE 96°
- Humidity: 58%
- Pressure: 30.18"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 50°F
- Feels like:48°F
Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 8mphESE 114°
- Humidity: 69%
- Pressure: 30.18"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, on Monday, primarily dry and sunny and occasionally cloud-filled weather is forecasted.
The temperature will be between a minimum of 37.4°F and a maximum of 66.2°F. The warmest part of the day will be from 2 pm to 4 pm.
The highest temperature is more in line with September's average maximum of 74.3°F than October's usual of 56.3°F. The minimum temperature will be alike with October's average low of 40.1°F.
The temperature will be between a minimum of 37.4°F and a maximum of 66.2°F. The warmest part of the day will be from 2 pm to 4 pm.
The highest temperature is more in line with September's average maximum of 74.3°F than October's usual of 56.3°F. The minimum temperature will be alike with October's average low of 40.1°F.
Updated: Oct 18, 2026 @ 10:34:22 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 Monday, in Groton, conditions remain stable and sunny, with little cloud presence.
Tomorrow, the highest temperature in Groton will be 68°F, while the lowest temperature will be 42.8°F.
The maximum temperature will be notably higher than the average highest temperature of 56.3°F in October. The lowest temperature will be in line with the average low of 40.1°F.
The maximum temperature will be notably higher than the average highest temperature of 56.3°F in October. The lowest temperature will be in line with the average low of 40.1°F.
On Monday, in Groton, sunrise will be at 7:54 am and sunset at 6:40 pm (CDT).
In Groton, the length of the day tomorrow will be 10h and 46min.
