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Weather for Alton, Illinois
current weather conditions

  Current weather conditions for
  Alton, Illinois


mostly cloudy
68 °F
[20 °C]
Feels Like
68 °F / 20 °C
Wind: 10 mph from W
Dew Point: 66 °F / 19 °C
Humidity: 94%
Pressure: 29.71 inches
Visibility: 10 miles
  Updated at 06/22/2018 06:08 am CST
observed temperature & rain for most recent 5 days
36-hour weather forecast
Today Tonight Tomorrow

overcast

High
78 °F (26 °C)
wind: 15 mph
humidity: 78%
precip: 50% chance
Tstorm: 40% chance


overcast

Overnight Low
65 °F (18 °C)
wind: 10 mph
humidity: 88%
precip: 20% chance
Tstorm: 10% chance


overcast

High
81 °F (27 °C)
wind: 8 mph
humidity: 65%
precip: 10% chance
Tstorm: 10% chance

observed daily cooling degree day for current month

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7-day weather forecast
Sat, Jun 23 Sun, Jun 24 Mon, Jun 25 Tue, Jun 26 Wed, Jun 27 Thu, Jun 28 Fri, Jun 29

overcast
65 °F ~ 81 °F
(18 °C ~ 27 °C)
Power Demand:
90%

overcast
71 °F ~ 88 °F
(22 °C ~ 31 °C)
Power Demand:
104%

Tstorm
73 °F ~ 88 °F
(23 °C ~ 31 °C)
Power Demand:
101%

Tstorm
76 °F ~ 93 °F
(24 °C ~ 34 °C)
Power Demand:
115%

Tstorm
77 °F ~ 93 °F
(25 °C ~ 34 °C)
Power Demand:
113%

clear sky
78 °F ~ 95 °F
(26 °C ~ 35 °C)
Power Demand:
119%

clear sky
77 °F ~ 95 °F
(25 °C ~ 35 °C)
Power Demand:
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Note: Power demand forecast is made relative to the Normal. See a graphical form of the power demand forecast.