Alton, Illinois Weather
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Weather Forecast for Alton, Illinois : Madison County
Issued: 5:44 pm CST Feb 21, 2019 Latitude: 38.8906038 Longitude: -90.1842764 View on Google Maps

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Tonight Friday Saturday Sunday Monday Tuesday Wednesday Thursday
Cloudy on Tonight 30% chance of rain on Friday 100% chance of thunderstorms on Saturday Sunny on Sunday Sunny on Monday Partly Sunny on Tuesday Partly Sunny on Wednesday Mostly Sunny on Thursday
Low: 30°F High: 46°F High: 58°F High: 45°F High: 40°F High: 46°F High: 39°F High: 40°F
Low: 39°F Low: 35°F Low: 22°F Low: 26°F Low: 29°F Low: 23°F  
Cloudy Rain Thunderstorms Sunny Sunny Partly Sunny Partly Sunny Mostly Sunny
Cloudy on Tonight Tonight... Cloudy, with a low around 30. East wind 6 to 8 mph.

30% chance of rain Friday Friday... A 30 percent chance of showers, mainly after 5pm. Cloudy, with a high near 46. East wind around 10 mph.

60% chance of thunderstorms Friday Night Friday Night... A slight chance of showers before midnight, then a chance of showers and thunderstorms between midnight and 3am, then showers likely and possibly a thunderstorm after 3am. Cloudy, with a low around 39. East wind 7 to 9 mph. Chance of precipitation is 60%.

100% chance of thunderstorms Saturday Saturday... Showers and possibly a thunderstorm. High near 58. East wind 7 to 16 mph becoming south in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 100%.

30% chance of rain Saturday Night Saturday Night... A 30 percent chance of showers before midnight. Mostly cloudy, with a low around 35. Breezy, with a south wind 16 to 26 mph becoming west after midnight. Winds could gust as high as 45 mph.

Sunny on Sunday Sunday... Sunny, with a high near 45. Breezy.

Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 22.

Sunny on Monday Monday... Sunny, with a high near 40.

Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 26.

Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 46.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 29.

Partly Sunny on Wednesday Wednesday... Partly sunny, with a high near 39.

Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 23.

Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 40.

Current Radar Image

Sun Almanac for Alton, Illinois
Sunrise: 06:44 AM
Sunset: 5:44 PM
Civil Sunrise:06:17 AM
Civil Sunset: 6:11 PM
Nautical Sunrise: 05:46 AM
Nautical Sunset: 6:42 PM
Astro Sunrise: 05:15 AM
Astro Sunset: 7:13 PM
Moon Almanac for Alton, Illinois
Moon Phase: Waning Gibbous
Moon Illumination: 91%
Moon Age: 17.6 Days
Moon is currently above the horizon
Distance from Moon to Earth: 229,178 miles
Upcoming Lunar Events for
Next EventEvent TimeIllum

High Moon:02:42 am Fri89.7%
Moonset:08:50 am Fri87.8%
Moonrise:09:35 pm Fri83.5%
High Moon:03:34 am Sat81.3%
Moonset:09:24 am Sat79.1%
New Moon: Mon Feb 4
First Quarter: Tue Feb 12
Full Moon: Tue Feb 19
Last Quarter: Tue Feb 26
New Moon: Wed Mar 6
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.