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Alton, IL Weather - Hour by Hour Forecast

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Alton, IL Weather - Hour by Hour Forecast

24 Hour Forecast

Current Conditions - Clear. Temperature is 73°F23°C, dew point 66°F19°C, humidity 78%. Wind direction is N at 0 mph0 km/h with visibility of 10 mi16 km. Barometric pressure is 29.93 in1013 mb.
Today - Partly sunny. Highs in the lower 90s. West winds 5 to 10 mph... Full Forecast
Tonight - Showers likely with a chance of thunderstorms. Lows in the upper 60s. North winds 5 to 10 mph. Chance of rain 70%... Full Forecast

Alton Hourly Weather

24 Hour Forecast Scroll
Sun, Sep 20
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Alton, IL Hourly Weather - Mostly Cloudy - 8:00 AM Alton, IL Hourly Weather - Mostly Cloudy - 9:00 AM Alton, IL Hourly Weather - Mostly Cloudy - 10:00 AM Alton, IL Hourly Weather - Mostly Cloudy - 11:00 AM Alton, IL Hourly Weather - Mostly Cloudy - 12:00 PM Alton, IL Hourly Weather - Mostly Cloudy - 1:00 PM Alton, IL Hourly Weather - Mostly Cloudy - 2:00 PM Alton, IL Hourly Weather - Mostly Cloudy - 3:00 PM Alton, IL Hourly Weather - Mostly Cloudy - 4:00 PM Alton, IL Hourly Weather - Mostly Cloudy - 5:00 PM Alton, IL Hourly Weather - Cloudy - 6:00 PM Alton, IL Hourly Weather - Cloudy - 7:00 PM Alton, IL Hourly Weather - Cloudy - 8:00 PM Alton, IL Hourly Weather - Cloudy - 9:00 PM Alton, IL Hourly Weather - Cloudy - 10:00 PM Alton, IL Hourly Weather - Cloudy - 11:00 PM Alton, IL Hourly Weather - Cloudy - 12:00 AM Alton, IL Hourly Weather - Cloudy - 1:00 AM Alton, IL Hourly Weather - Cloudy - 2:00 AM Alton, IL Hourly Weather - Cloudy - 3:00 AM Alton, IL Hourly Weather - Cloudy - 4:00 AM Alton, IL Hourly Weather - Cloudy - 5:00 AM Alton, IL Hourly Weather - Cloudy - 6:00 AM Alton, IL Hourly Weather - Cloudy - 7:00 AM
Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy
72°F22°C 78°F26°C 83°F28°C 86°F30°C 88°F31°C 91°F33°C 91°F33°C 92°F33°C 92°F33°C 89°F32°C 86°F30°C 83°F28°C 80°F27°C 77°F25°C 74°F23°C 73°F23°C 73°F23°C 72°F22°C 71°F22°C 71°F22°C 70°F21°C 69°F21°C 69°F21°C 68°F20°C
- - - - - - - - - - - - Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain
11% 11% 11% 11% 11% 11% 15% 15% 15% 15% 15% 15% 29% 29% 29% 29% 29% 29% 49% 49% 49% 49% 49% 49%
66°F19°C 68°F20°C 70°F21°C 70°F21°C 69°F21°C 69°F21°C 69°F21°C 69°F21°C 69°F21°C 69°F21°C 70°F21°C 70°F21°C 70°F21°C 70°F21°C 70°F21°C 70°F21°C 69°F21°C 69°F21°C 69°F21°C 69°F21°C 69°F21°C 69°F21°C 68°F20°C 68°F20°C
81% 71% 65% 59% 54% 49% 49% 47% 47% 52% 59% 65% 72% 79% 87% 90% 87% 90% 93% 93% 97% 100% 97% 100%
SSW SSW SSW SSW SSW SSW SSW W W NW NW N SSW SE N N N N NNE NNE NE NE NE NE
5 mph 7 mph 7 mph 7 mph 8 mph 8 mph 8 mph 9 mph 9 mph 9 mph 7 mph 7 mph 7 mph 9 mph 9 mph 9 mph 4 mph 4 mph 4 mph 4 mph 4 mph 4 mph 5 mph 5 mph
10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 6 mi10 km 6 mi10 km 5 mi8 km 5 mi8 km 5 mi8 km 5 mi8 km 5 mi8 km 3 mi5 km 3 mi5 km
Hour (CDT)
Weather
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POP
Dewpoint
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POP = Probability of Precipitation. ** Indicates missing data/values from KALN model statistics.

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Prob Precip % = Probability of Precipitation.

Alton 36 Hour Forecast

POP = Probability of Precipitation. ** Indicates missing data/values from model statistics.

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