Weather forecast for tomorrow
Saturday, May 3.
6:18 am
8:07 pm
EDT
8:07 pm
EDT
Mostly Cloudy
81°F / 61°F
- Wind: 11mph SSW
- Humidity: 63%
- Precip. probability: 24%
- Precipitation: 0.71"
- UV index: 8
On Saturday, in Alton, mostly cloudy conditions are also expected.
With a low probability, moderate precipitation is predicted for tomorrow. Temperature span will be from a high of a moderately hot 80.6°F to a low of a comfortable 60.8°F.
The maximum heat index, which integrates air moisture with ambient temperature, is assessed at 82.4°F.
The temperature is forecasted to correspond with the average May peak of 78.3°F.
Sunrise will be at 6:18 am and sunset at 8:07 pm; tomorrow's daylight will last for 13h and 49min.
With a low probability, moderate precipitation is predicted for tomorrow. Temperature span will be from a high of a moderately hot 80.6°F to a low of a comfortable 60.8°F.
The maximum heat index, which integrates air moisture with ambient temperature, is assessed at 82.4°F.
The temperature is forecasted to correspond with the average May peak of 78.3°F.
Sunrise will be at 6:18 am and sunset at 8:07 pm; tomorrow's daylight will last for 13h and 49min.
Frequently asked questions
What is the weather forecast for Alton for tomorrow?
Tomorrow, thick clouds will linger with little clearing expected.
Will it rain tomorrow?
Moderate precipitation of 0.71" is forecasted. The chance of rainfall is 24%.
What will be the maximum temperature tomorrow in Alton?
Tomorrow, the maximum temperature will be 80.6°F, while the minimum temperature will be 60.8°F. The maximum heat index, which integrates air moisture with ambient temperature, is assessed at 82.4°F.
The highest temperature will be in line with the average maximum of 78.3°F in May. The lowest temperature tomorrow will be also in line with the average low temperature.
The highest temperature will be in line with the average maximum of 78.3°F in May. The lowest temperature tomorrow will be also in line with the average low temperature.
When are sunrise and sunset tomorrow?
On Saturday, in Alton, sunrise will be at 6:18 am and sunset at 8:07 pm (EDT).
How long will the day be tomorrow?
In Alton, tomorrow, there will be 13h and 49min of daylight.
Hourly weather forecast
12 am
- 68°F
- Feels like:
68°F
Mostly Cloudy
- Wind: 5mph SSW
- Pressure: 29.91"Hg
- Humidity: 72%
- Precip. probability: 7%
- Precipitation: 0"
- Visibility: 10mi
2 am
- 68°F
- Feels like:
68°F
Mostly Cloudy
- Wind: 6mph SSW
- Pressure: 29.91"Hg
- Humidity: 79%
- Precip. probability: 3%
- Precipitation: 0"
- Visibility: 10mi
4 am
- 66°F
- Feels like:
66°F
Partly Cloudy
- Wind: 6mph SSW
- Pressure: 29.91"Hg
- Humidity: 83%
- Precip. probability: 13%
- Precipitation: 0"
- Visibility: 10mi
6 am
- 64°F
- Feels like:
64°F
Partly Cloudy
- Wind: 6mph SSW
- Pressure: 29.91"Hg
- Humidity: 86%
- Precip. probability: 8%
- Precipitation: 0"
- Visibility: 7mi
Sunrise: 6:18 am
8 am
- 66°F
- Feels like:
66°F
Partly Cloudy
- Wind: 7mph SSW
- Pressure: 29.94"Hg
- Humidity: 85%
- Precip. probability: 7%
- Precipitation: 0"
- Visibility: 9mi
10 am
- 72°F
- Feels like:
73°F
Mostly Cloudy
- Wind: 10mph SSW
- Pressure: 29.94"Hg
- Humidity: 68%
- Precip. probability: 4%
- Precipitation: 0"
- Visibility: 10mi
12 pm
- 77°F
- Feels like:
77°F
Partly Cloudy
- Wind: 10mph SSW
- Pressure: 29.91"Hg
- Humidity: 56%
- Precip. probability: 5%
- Precipitation: 0"
- Visibility: 10mi
2 pm
- 79°F
- Feels like:
81°F
Mostly Cloudy
- Wind: 11mph S
- Pressure: 29.85"Hg
- Humidity: 52%
- Precip. probability: 15%
- Precipitation: 0"
- Visibility: 10mi
4 pm
- 79°F
- Feels like:
81°F
Mostly Cloudy
- Wind: 9mph S
- Pressure: 29.8"Hg
- Humidity: 51%
- Precip. probability: 24%
- Precipitation: 0"
- Visibility: 10mi
6 pm
- 77°F
- Feels like:
77°F
Cloudy
- Wind: 8mph S
- Pressure: 29.8"Hg
- Humidity: 54%
- Precip. probability: 15%
- Precipitation: 0"
- Visibility: 10mi
8 pm
- 72°F
- Feels like:
72°F
Showers
- Wind: 4mph S
- Pressure: 29.8"Hg
- Humidity: 67%
- Precip. probability: 44%
- Precipitation: 0.04"
- Visibility: 7mi
Sunset: 8:07 pm
10 pm
- 68°F
- Feels like:
68°F
Rain
- Wind: 5mph S
- Pressure: 29.83"Hg
- Humidity: 76%
- Precip. probability: 78%
- Precipitation: 0.16"
- Visibility: 2mi
Tomorrow, a combination of primarily dull and occasionally wet and lightning-active weather is anticipated.
Rainfall is forecasted at 3 pm, and from 8 pm to 11 pm. With moderate precipitation of 0.16", most rainfall is expected at 10 pm.
The temperature will be between the lowest temperature of 64.4°F and the highest temperature of 78.8°F. The warmest part of the day will be from 1 pm to 4 pm.
The maximum temperature will be in line with the average high of 78.3°F in May. The nighttime low tomorrow will be also consistent with May's typical minimum temperature.
Rainfall is forecasted at 3 pm, and from 8 pm to 11 pm. With moderate precipitation of 0.16", most rainfall is expected at 10 pm.
The temperature will be between the lowest temperature of 64.4°F and the highest temperature of 78.8°F. The warmest part of the day will be from 1 pm to 4 pm.
The maximum temperature will be in line with the average high of 78.3°F in May. The nighttime low tomorrow will be also consistent with May's typical minimum temperature.
Updated: May 3, 2025 @ 00:52:10 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