10-Day Weather Forecast - Alton, IL
- 84|69°F
SunnyHourly detailsToday
84°FSunny. Near steady temperature in the lower 80s. Northwest winds around 5 mph.
Tonight
69°F
Mostly cloudy. Isolated showers after midnight. Lows in the mid 60s. Northeast winds around 5 mph becoming southwest after midnight. Chance of rain 20 percent.
Weekend Weather
- 82|70°F
Mostly SunnyHourly detailsDay
82°FMostly sunny. Isolated showers in the morning. Highs in the mid 80s. North winds around 5 mph. Chance of rain 20 percent.
Night
70°F
Mostly cloudy. A chance of showers with a slight chance of thunderstorms after midnight. Lows in the upper 60s. East winds around 5 mph. Chance of rain 50 percent.
- 80|65°F
ThunderstormsHourly detailsDay
80°FShowers and thunderstorms. Highs in the lower 80s. Southeast winds 10 to 15 mph becoming south in the afternoon. Chance of rain near 100 percent.
Night
65°FShowers and thunderstorms mainly in the evening. Lows in the mid 60s. Chance of rain 90 percent.
- 76|60°F
Partly SunnyHourly detailsDay
76°FMostly cloudy with a slight chance of showers and thunderstorms in the morning then partly sunny in the afternoon. Highs in the upper 70s. Chance of rain 20 percent.
Night
60°F
Partly cloudy. Lows in the lower 60s. Highs around 80.
- 78|63°FPartly CloudyHourly details
Day
78°FPartly cloudy. Lows in the lower 60s. Highs around 80.
Night
63°FPartly cloudy. A slight chance of showers after midnight. Lows in the lower 60s. Chance of rain 20 percent.
- 83|66°FMostly SunnyHourly details
Day
83°FMostly clear. Highs in the lower 80s. Lows in the lower 60s.
Night
66°F
Mostly clear. Highs in the lower 80s. Lows in the lower 60s.
- 80|65°FMostly Sunny
Day
80°FMostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 20 percent.
Night
65°F
Partly cloudy with a 35% chance for rain and thunderstorms. Low temperature around 65F. Dew point will be around 64F with an average humidity of 86%. Winds will be 3 mph from the E.
- 82|69°F
40% Chance of RainDay
82°FMostly sunny with a 40% chance for rain and thunderstorms. High temperature around 82F. Dew point will be around 67F with an average humidity of 75%. Winds will be 6 mph from the S.
Night
69°FPartly cloudy with a 40% chance for rain and thunderstorms. Low temperature around 69F. Dew point will be around 68F with an average humidity of 83%. Winds will be 5 mph from the S.
Weekend Weather
- 84|71°F50% Chance of Rain
Day
84°FPartly cloudy with a 45% chance for rain and thunderstorms. High temperature around 84F. Dew point will be around 70F with an average humidity of 75%. Winds will be 6 mph from the S.
Night
71°FPartly cloudy with a 45% chance for rain and thunderstorms. Low temperature around 71F. Dew point will be around 70F with an average humidity of 82%. Winds will be 5 mph from the S.
- 87|73°F50% Chance of Rain
Day
87°FMostly sunny with a 45% chance for rain and thunderstorms. High temperature around 87F. Dew point will be around 71F with an average humidity of 72%. Winds will be 6 mph from the SW.
Night
73°FClear with a 35% chance for rain and thunderstorms. Low temperature around 72F. Dew point will be around 72F with an average humidity of 82%. Winds will be 3 mph from the S.
