Weather forecast for tomorrowAlton, IA
Weather forecast for tomorrow
Monday Oct 19, 2026
- 66°F
- 43°F
Mostly Sunny
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 9mphSSE 149°
- Humidity: 63%
- UV index: 4
- Sunrise: 7:42 am CDT
- Sunset: 6:35 pm CDT
- details ▼
On Monday, in Alton, a crisp, sunny atmosphere is also likely.
The highest temperature will be a breezy 66.2°F, while the lowest temperature will be a frosty 42.8°F.
Anticipated temperatures are trending slightly warmer than October's climate norm of 58.1°F.
Sunrise will be at 7:42 am and sunset at 6:35 pm; tomorrow's daylight will last for 10h and 52min.
The highest temperature will be a breezy 66.2°F, while the lowest temperature will be a frosty 42.8°F.
Anticipated temperatures are trending slightly warmer than October's climate norm of 58.1°F.
Sunrise will be at 7:42 am and sunset at 6:35 pm; tomorrow's daylight will last for 10h and 52min.
Hourly overview
Hourly temperatures
Warmest hour: 3 pm 64°C.
Coldest hour: 6 am 41°C.
Coldest hour: 6 am 41°C.
Chance of precipitation
Highest chance: 6 am 7%.
Hourly weather forecast
- 12 am
- 48°F
- Feels like:45°F
Clear
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 6mphS 175°
- Humidity: 74%
- Pressure: 30.18"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 45°F
- Feels like:41°F
Partly Cloudy
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 6mphS 170°
- Humidity: 82%
- Pressure: 30.21"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 43°F
- Feels like:39°F
Partly Cloudy
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 5mphSSE 167°
- Humidity: 88%
- Pressure: 30.21"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 41°F
- Feels like:39°F
Partly Cloudy
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 4mphSSE 159°
- Humidity: 94%
- Pressure: 30.21"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 7:42 am
- 8 am
- 43°F
- Feels like:39°F
Partly Cloudy
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 4mphSE 137°
- Humidity: 93%
- Pressure: 30.24"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 am
- 50°F
- Feels like:48°F
Partly Cloudy
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 6mphSSE 150°
- Humidity: 78%
- Pressure: 30.27"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 12 pm
- 59°F
- Feels like:57°F
Mostly Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 7mphSSE 152°
- Humidity: 57%
- Pressure: 30.24"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 2 pm
- 64°F
- Feels like:64°F
Mostly Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 8mphSSE 151°
- Humidity: 47%
- Pressure: 30.21"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 4 pm
- 64°F
- Feels like:64°F
Mostly Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 9mphSSE 155°
- Humidity: 44%
- Pressure: 30.18"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 6 pm
- 63°F
- Feels like:63°F
Mostly Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 7mphSE 142°
- Humidity: 49%
- Pressure: 30.18"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:35 pm
- 8 pm
- 55°F
- Feels like:54°F
Mostly Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 4mphESE 122°
- Humidity: 66%
- Pressure: 30.21"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 50°F
- Feels like:50°F
Clear
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 4mphSE 137°
- Humidity: 77%
- Pressure: 30.24"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, a combination of mostly clear and cloudy weather is anticipated.
The temperature will be between the lowest temperature of 41°F and the highest temperature of 64.4°F. The warmest part of the day will be from 2 pm to 5 pm.
The highest temperature will be moderately higher than October's average maximum of 58.1°F. The minimum temperature will be also similar to October's average low of 42.6°F.
The temperature will be between the lowest temperature of 41°F and the highest temperature of 64.4°F. The warmest part of the day will be from 2 pm to 5 pm.
The highest temperature will be moderately higher than October's average maximum of 58.1°F. The minimum temperature will be also similar to October's average low of 42.6°F.
Updated: Oct 18, 2026 @ 05:54:57 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, clear skies with only minor cloud interruptions are in the outlook.
Tomorrow, the highest temperature in Alton will be 66.2°F, while the lowest temperature will be 42.8°F.
The highest temperature will be slightly warmer than the average maximum of 58.1°F in October. The lowest temperature will be in line with the average low of 42.6°F.
The highest temperature will be slightly warmer than the average maximum of 58.1°F in October. The lowest temperature will be in line with the average low of 42.6°F.
On Monday, in Alton, sunrise will be at 7:42 am and sunset at 6:35 pm (CDT).
In Alton, tomorrow, there will be 10h and 52min of daylight.
