Weather forecast for tomorrowSun Prairie, WI
Weather forecast for tomorrow
Sunday Oct 18, 2026
- 64°F
- 39°F
Sunny
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 17mphSSW 207°
- Humidity: 53%
- UV index: 4
- Sunrise: 7:14 am CDT
- Sunset: 6:09 pm CDT
- details ▼
On Sunday, October 18, the forecast calls for abundant sunshine.
The expected temperature range extends from a high of an enjoyable 64.4°F to a low of a wintry 39.2°F.
Tomorrow, it will be warmer, and the temperature will align more with September's typical maximum of 70.7°F.
Sunrise will be at 7:14 am and sunset at 6:09 pm; tomorrow's daylight will last for 10h and 55min.
The expected temperature range extends from a high of an enjoyable 64.4°F to a low of a wintry 39.2°F.
Tomorrow, it will be warmer, and the temperature will align more with September's typical maximum of 70.7°F.
Sunrise will be at 7:14 am and sunset at 6:09 pm; tomorrow's daylight will last for 10h and 55min.
Hourly overview
Hourly temperatures
Warmest hour: 3 pm 63°C.
Coldest period: 3 am - 6 am 41°C.
Coldest period: 3 am - 6 am 41°C.
Chance of precipitation
Highest chance: 3%.
Hourly weather forecast
- 12 am
- 43°F
- Feels like:37°F
Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 10mphSSW 208°
- Humidity: 65%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 43°F
- Feels like:37°F
Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 9mphSSW 211°
- Humidity: 69%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 41°F
- Feels like:36°F
Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 9mphSSW 209°
- Humidity: 72%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 41°F
- Feels like:36°F
Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 10mphSSW 211°
- Humidity: 73%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 7:14 am
- 8 am
- 43°F
- Feels like:36°F
Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 11mphSSW 209°
- Humidity: 72%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 am
- 50°F
- Feels like:45°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 16mphSSW 207°
- Humidity: 58%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 12 pm
- 57°F
- Feels like:54°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 17mphSSW 207°
- Humidity: 47%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 2 pm
- 63°F
- Feels like:59°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 16mphSSW 209°
- Humidity: 43%
- Pressure: 30.27"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 4 pm
- 63°F
- Feels like:61°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 16mphSSW 204°
- Humidity: 43%
- Pressure: 30.24"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 6 pm
- 59°F
- Feels like:55°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 11mphSSW 199°
- Humidity: 49%
- Pressure: 30.27"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:09 pm
- 8 pm
- 54°F
- Feels like:50°F
Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 9mphSSW 197°
- Humidity: 63%
- Pressure: 30.27"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 52°F
- Feels like:48°F
Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 9mphSSW 205°
- Humidity: 66%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, on Sunday, bright skies and dry conditions are anticipated.
The temperature will be between the lowest temperature of 41°F and the highest temperature of 62.6°F. The warmest part of the day will be from 2 pm to 4 pm.
The temperature tomorrow will feel more similar to September's average high of 70.7°F than the usual for October. The lowest temperature tomorrow will be in line with October's average minimum.
The temperature will be between the lowest temperature of 41°F and the highest temperature of 62.6°F. The warmest part of the day will be from 2 pm to 4 pm.
The temperature tomorrow will feel more similar to September's average high of 70.7°F than the usual for October. The lowest temperature tomorrow will be in line with October's average minimum.
Updated: Oct 17, 2026 @ 15:26:18 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 Sunday, expect bright skies and plenty of sunshine.
Tomorrow, the maximum temperature will be 64.4°F, while the minimum temperature will be 39.2°F.
The highest temperature tomorrow will be a few degrees higher than the average maximum temperature in October. The lowest temperature will be in line with the average low of 41.7°F.
The highest temperature tomorrow will be a few degrees higher than the average maximum temperature in October. The lowest temperature will be in line with the average low of 41.7°F.
On Sunday, in Sun Prairie, sunrise will be at 7:14 am and sunset at 6:09 pm (CDT).
Tomorrow, the daylight will last for 10h and 55min.
