Weather Report
Alton, Illinois
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Current Conditions -  °F | °C
As of 6:55 AM on Tuesday 21 May 2013 (Local Time) from KALN Reporting Station
Scattered Clouds Scattered Clouds   Feels Like: 64°
Wind Chill: 64°   Ceiling: Unl
Heat Index: 64°   Visibility: 10mi
Dew Point: 61°   Wind: 9mph
Humidity: 88%   Direction: 160° (SSE)
Pressure: 29.79"   Gusts: NA
Report Text: KALN 211155Z AUTO 16008KT 10SM SCT060 18/16 A2979 RMK AO2 P0003 60020 70039 T01800160 10182 20170 TSNO
8 AM
M Cloudy
M Cloudy 69°
9 AM
M Cloudy
M Cloudy 70°
10 AM
M Cloudy
M Cloudy 72°
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10 Day Forecast -  °F | °C
tue wed thu fri sat sun mon tue wed thu
may
21
Strong Tstms
Strong Tstms
83°
65°
may
22
P Cloudy
P Cloudy
75°
57°
may
23
P Cloudy
P Cloudy
65°
49°
may
24
M Sunny
M Sunny
71°
54°
may
25
M Cloudy
M Cloudy
72°
61°
may
26
Iso T-Storms
Iso T-Storms
71°
62°
may
27
P Cloudy
P Cloudy
80°
65°
may
28
Sct T-Storms
Sct T-Storms
82°
67°
may
29
M Cloudy
M Cloudy
82°
70°
may
30
Cloudy
Cloudy
85°
69°
Details for Tuesday, May 21
Mostly cloudy early. Scattered strong thunderstorms this afternoon. Storms may produce large hail and strong winds. High 83F. Winds SSW at 10 to 20 mph. Chance of rain 50%.
Evening: Variable clouds with strong thunderstorms, especially early. Storms may produce large hail and strong winds. Low near 65F. Winds SSW at 10 to 15 mph. Chance of rain 60%.
UV Index: 7 (High)
Ultraviolet Radiation Index
Relative Humidity: 68%
Relative Humidity
Precipitation: 60%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 65%
Cloud Coverage
Sunrise: 5:43 AM
Sunset: 8:11 PM
 
Moonrise: 4:27 PM
Moonset: 3:09 AM
Moon Phase:  Waxing Gibbous
Moonphase:
Waxing Gibbous
Wind Direction:  SSW
Direction: SSW (207°)
Speed: 16Mph(26Km, 14Kts)
Details for Wednesday, May 22
Intervals of clouds and sunshine. High near 75F. Winds WSW at 10 to 20 mph.
Evening: A few clouds. Low 57F. Winds WNW at 10 to 15 mph.
UV Index: 9 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 65%
Relative Humidity
Precipitation: 20%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 46%
Cloud Coverage
Sunrise: 5:43 AM
Sunset: 8:12 PM
 
Moonrise: 5:35 PM
Moonset: 3:45 AM
Moon Phase:  Waxing Gibbous
Moonphase:
Waxing Gibbous
Wind Direction:  WSW
Direction: WSW (250°)
Speed: 15Mph(24Km, 13Kts)
Details for Thursday, May 23
Times of sun and clouds. Highs in the mid 60s and lows in the upper 40s.
UV Index: 9 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 65%
Relative Humidity
Precipitation: 20%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 41%
Cloud Coverage
Sunrise: 5:42 AM
Sunset: 8:13 PM
 
Moonrise: 6:46 PM
Moonset: 4:25 AM
Moon Phase:  Waxing Gibbous
Moonphase:
Waxing Gibbous
Wind Direction:  NW
Direction: NW (326°)
Speed: 16Mph(26Km, 14Kts)
Details for Friday, May 24
Plenty of sun. Highs in the low 70s and lows in the mid 50s.
UV Index: 9 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 52%
Relative Humidity
Precipitation: 10%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 9%
Cloud Coverage
Sunrise: 5:41 AM
Sunset: 8:14 PM
 
Moonrise: 7:56 PM
Moonset: 5:13 AM
Moon Phase:  Full
Moonphase:
Full
Wind Direction:  ENE
Direction: ENE (74°)
Speed: 9Mph(15Km, 8Kts)
Details for Saturday, May 25
More clouds than sun. Highs in the low 70s and lows in the low 60s.
UV Index: 6 (High)
Ultraviolet Radiation Index
Relative Humidity: 59%
Relative Humidity
Precipitation: 30%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 76%
Cloud Coverage
Sunrise: 5:41 AM
Sunset: 8:15 PM
 
Moonrise: 9:03 PM
Moonset: 6:07 AM
Moon Phase:  Waning Gibbous
Moonphase:
Waning Gibbous
Wind Direction:  SSE
Direction: SSE (152°)
Speed: 10Mph(16Km, 9Kts)
Details for Sunday, May 26
Slight chance of a thunderstorm. Highs in the low 70s and lows in the low 60s.
UV Index: 6 (High)
Ultraviolet Radiation Index
Relative Humidity: 67%
Relative Humidity
Precipitation: 30%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 85%
Cloud Coverage
Sunrise: 5:40 AM
Sunset: 8:16 PM
 
Moonrise: 10:03 PM
Moonset: 7:09 AM
Moon Phase:  Waning Gibbous
Moonphase:
Waning Gibbous
Wind Direction:  ENE
Direction: ENE (77°)
Speed: 11Mph(18Km, 9Kts)
Details for Monday, May 27
Mix of sun and clouds. Highs in the low 80s and lows in the mid 60s.
UV Index: 8 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 59%
Relative Humidity
Precipitation: 20%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 53%
Cloud Coverage
Sunrise: 5:40 AM
Sunset: 8:16 PM
 
Moonrise: 10:56 PM
Moonset: 8:16 AM
Moon Phase:  Waning Gibbous
Moonphase:
Waning Gibbous
Wind Direction:  ESE
Direction: ESE (123°)
Speed: 10Mph(16Km, 9Kts)
Details for Tuesday, May 28
Scattered thunderstorms. Highs in the low 80s and lows in the upper 60s.
UV Index: 6 (High)
Ultraviolet Radiation Index
Relative Humidity: 62%
Relative Humidity
Precipitation: 40%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 82%
Cloud Coverage
Sunrise: 5:39 AM
Sunset: 8:17 PM
 
Moonrise: 11:42 PM
Moonset: 9:26 AM
Moon Phase:  Waning Gibbous
Moonphase:
Waning Gibbous
Wind Direction:  S
Direction: S (172°)
Speed: 12Mph(20Km, 10Kts)
Details for Wednesday, May 29
Considerable cloudiness. Highs in the low 80s and lows in the low 70s.
UV Index: 6 (High)
Ultraviolet Radiation Index
Relative Humidity: 67%
Relative Humidity
Precipitation: 30%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 78%
Cloud Coverage
Sunrise: 5:38 AM
Sunset: 8:18 PM
 
Moonrise: 11:59 PM
Moonset: 10:36 AM
Moon Phase:  Waning Gibbous
Moonphase:
Waning Gibbous
Wind Direction:  S
Direction: S (187°)
Speed: 12Mph(20Km, 10Kts)
Details for Thursday, May 30
Mostly Cloudy. Highs in the mid 80s and lows in the upper 60s.
UV Index: 6 (High)
Ultraviolet Radiation Index
Relative Humidity: 65%
Relative Humidity
Precipitation: 10%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 76%
Cloud Coverage
Sunrise: 5:38 AM
Sunset: 8:19 PM
 
Moonrise: 12:22 AM
Moonset: 11:44 AM
Moon Phase:  Waning Gibbous
Moonphase:
Waning Gibbous
Wind Direction:  SSW
Direction: SSW (204°)
Speed: 13Mph(21Km, 11Kts)
Chart.
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