Weather forecast for 10 days
Alton, IL

Weather forecast for the weekend

Saturday, Apr 5.

Rain
6:36 am

7:29 pm
CDT
Rain
48°F / 37°F
  • Wind: 16mph N
  • Humidity: 86%
  • Precip. probability: 99%
  • Precipitation: 0.43"
  • UV index: 1
On Saturday, April 5, rain is also expected, making for a wet day.
The chance of rainfall for tomorrow is high, and precipitation will be moderate. A temperature range of a chilly 48.2°F to an icy 37.4°F is forecasted.
The colder conditions bring a maximum of 48.2°F, more representative of March than April.
Sunrise will be at 6:36 am and sunset at 7:29 pm; tomorrow's daylight will last for 12h and 53min.

Sunday, Apr 6.

PM Showers
6:35 am

7:30 pm
CDT
PM Showers
50°F / 32°F
  • Wind: 13mph NNE
  • Humidity: 51%
  • Precip. probability: 39%
  • Precipitation: 0.04"
  • UV index: 3
On Sunday, April 6, on-and-off showers may develop in the afternoon.
Minimal precipitation is expected. The maximum temperature will be a fresh 50°F, while the minimum temperature will be an icy 32°F.
On Sunday, the maximum temperature will be lower and more reflective of March's average high of 53.2°F than April's of 64.6°F.
Sunrise will be at 6:35 am and sunset at 7:30 pm; the daylight will last for 12h and 55min.

Frequently asked questions

What is the weather forecast for Alton for Sunday?
On Sunday, expect afternoon showers, though they should remain light and brief.
Will it rain on Sunday?
On Sunday, there is a low chance of minimal precipitation in Alton.
What will be the maximum temperature on Sunday?
On Sunday, the highest temperature will be 50°F, while the lowest temperature will be 32°F.
What is the weather forecast for Alton for the next ten days?
In Alton, weather will be unstable, and a combination of dull, mostly clear, wet and unstable weather is expected for the next ten days.
Will it rain in the next ten days?
Rainfall is expected on Friday through Sunday and Wednesday in Alton. Friday, with moderate precipitation of 0.75", will be the day with the most rainfall.
How warm will it be in the next ten days?
The maximum temperature will range between 48.2°F and 77°F, as the minimum temperature will be between 26.6°F and 57.2°F.
What will be the warmest and the coldest days?
Next Sunday will be the warmest day, with a maximum temperature of 77°F. Tomorrow will be the coldest day, with a maximum temperature of 48.2°F.

Long-term weather forecast

FriApr 4.
  • min.
  • 45°F
Thundershowers
Thundershowers
  • Wind: 14mph N
  • Humidity: 95%
  • UV index: 0
  • Precip. probability: 100%
  • Precipitation: 0.75"
  • 6:38 am 7:28 pm CDT
SatApr 5.
  • 48°F
  • 37°F
Rain
Rain
  • Wind: 16mph N
  • Humidity: 86%
  • UV index: 1
  • Precip. probability: 99%
  • Precipitation: 0.43"
  • 6:36 am 7:29 pm CDT
SunApr 6.
  • 50°F
  • 32°F
PM Showers
PM Showers
  • Wind: 13mph NNE
  • Humidity: 51%
  • UV index: 3
  • Precip. probability: 39%
  • Precipitation: 0.04"
  • 6:35 am 7:30 pm CDT
MonApr 7.
  • 59°F
  • 27°F
Mostly Sunny
Mostly Sunny
  • Wind: 16mph NW
  • Humidity: 49%
  • UV index: 7
  • Precip. probability: 6%
  • Precipitation: 0"
  • 6:33 am 7:31 pm CDT
TueApr 8.
  • 52°F
  • 37°F
Sunny
Sunny
  • Wind: 6mph SE
  • Humidity: 44%
  • UV index: 7
  • Precip. probability: 3%
  • Precipitation: 0"
  • 6:32 am 7:32 pm CDT
WedApr 9.
  • 63°F
  • 52°F
Cloudy
Cloudy
  • Wind: 16mph SSE
  • Humidity: 51%
  • UV index: 4
  • Precip. probability: 18%
  • Precipitation: 0.08"
  • 6:30 am 7:33 pm CDT
ThuApr 10.
  • 70°F
  • 46°F
Partly Cloudy
Partly Cloudy
  • Wind: 14mph W
  • Humidity: 57%
  • UV index: 6
  • Precip. probability: 24%
  • Precipitation: 0"
  • 6:29 am 7:34 pm CDT
FriApr 11.
  • 68°F
  • 46°F
Mostly Sunny
Mostly Sunny
  • Wind: 13mph NW
  • Humidity: 53%
  • UV index: 7
  • Precip. probability: 6%
  • Precipitation: 0"
  • 6:27 am 7:35 pm CDT
SatApr 12.
  • 70°F
  • 52°F
Partly Cloudy
Partly Cloudy
  • Wind: 11mph SSE
  • Humidity: 55%
  • UV index: 7
  • Precip. probability: 10%
  • Precipitation: 0"
  • 6:26 am 7:36 pm CDT
SunApr 13.
  • 77°F
  • 57°F
Partly Cloudy
Partly Cloudy
  • Wind: 12mph SSE
  • Humidity: 58%
  • UV index: 7
  • Precip. probability: 24%
  • Precipitation: 0"
  • 6:24 am 7:37 pm CDT
Over the course of the next ten days, expect shifting weather, and a mix of cloud-filled, sun-filled, wet and thunderstorm-prone weather is forecasted.
Rainfall is anticipated on Friday through Sunday and Wednesday.
The temperature will vary considerably in the coming days. The temperature is expected to swing from 48.2°F up to 77°F, while the nightly low temperatures will show also a considerable swing, as temperatures overnight will fluctuate from 26.6°F up to 57.2°F.
Next Sunday will be the warmest day, with a maximum temperature of 77°F; the lowest daytime temperature of the period will be reached on Saturday, peaking at 48.2°F.
Updated: Apr 4, 2025 @ 22:56:19 UTC
Published by: Weather U.S. | About Us
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