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Alton / St. Louis Regional
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D
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Time
(cst)
Wind
(mph)
Vis.
(mi.)
WeatherSky Cond. Temperature (ºF)Relative
Humidity
PressurePrecipitation (in.)
AirDwpt6 hour altimeter
(in.)
sea level
(mb)
1 hr 3 hr6 hr
Max.Min.
2105:15SE 710.00OvercastOVC0233832 80%30.22NA
2104:55SE 710.00OvercastOVC0253832 80%30.21NA
2104:35SE 610.00OvercastOVC0253832 80%30.22NA
2104:15SE 610.00OvercastOVC0253832 79%30.21NA
2103:55SE 710.00OvercastOVC0253832 80%30.21NA
2103:35SE 810.00OvercastOVC0253833 81%30.22NA
2103:15SE 710.00OvercastOVC0253833 80%30.23NA
2102:55SE 810.00OvercastOVC0253833 81%30.23NA
2102:35SE 810.00OvercastOVC0253833 81%30.24NA
2102:15SE 710.00OvercastOVC0253833 80%30.25NA
2101:55SE 710.00OvercastOVC0273833 81%30.24NA
2101:35SE 710.00OvercastOVC0273833 79%30.24NA
2101:15SE 910.00OvercastOVC0273932 78%30.24NA
2100:55SE 710.00OvercastOVC0293833 79%30.23NA
2100:35SE 710.00OvercastOVC0293833 80%30.24NA
2100:15SE 610.00OvercastOVC0293833 81%30.25NA
2023:55SE 610.00OvercastOVC0293832 393880%30.25NA
2023:35SE 510.00OvercastOVC0293833 81%30.25NA
2023:15SE 610.00OvercastOVC0293833 80%30.26NA
2022:55SE 510.00OvercastOVC0293833 80%30.26NA
2022:35SE 310.00OvercastOVC0293832 79%30.26NA
2022:15SE 610.00OvercastOVC0293832 79%30.25NA
2021:55SE 610.00OvercastOVC0293832 79%30.25NA
2021:47SE 710.00OvercastOVC0293732 81%30.25NA
2021:35SE 610.00OvercastOVC0293832 78%30.25NA
2021:15SE 710.00OvercastOVC0293832 78%30.25NA
2020:50SE 710.00OvercastOVC0293632 87%30.25NA
2018:50SE 710.00OvercastOVC0293632 87%30.27NA
2017:50SE 710.00OvercastOVC0313932 75%30.25NA
2016:45SE 67.00OvercastOVC0333932 75%30.24NA
2011:45S 77.00OvercastOVC0173730 75%30.26NA
2010:59S 97.00OvercastBKN017 OVC0233730 75%30.28NA
2009:50S 97.00OvercastBKN029 OVC0653628 75%30.30NA
2008:55S 67.00OvercastSCT025 OVC0333628 75%30.29NA
2007:50SE 67.00OvercastBKN027 OVC0653428 81%30.28NA
2006:50E 67.00OvercastBKN029 OVC0653228 87%30.26NA
2005:35SE 37.00OvercastOVC0503329 85%30.26NA
2005:15SE 37.00OvercastSCT026 OVC0503328 84%30.26NA
2004:55E 57.00OvercastBKN028 OVC0503328 84%30.26NA
2004:35Calm7.00OvercastOVC0283328 83%30.26NA
2004:15E 37.00OvercastOVC0283328 82%30.26NA
2003:55E 37.00OvercastOVC0283328 82%30.27NA
2003:35Calm7.00OvercastBKN028 OVC0503328 81%30.27NA
2003:15E 37.00OvercastSCT028 BKN050 OVC0553328 82%30.27NA
2002:55E 57.00OvercastBKN030 SCT044 OVC0553329 84%30.27NA
2002:35E 37.00OvercastSCT030 SCT035 OVC0493329 84%30.27NA
2002:15NE 37.00OvercastBKN034 OVC0493329 85%30.27NA
2001:55E 37.00OvercastBKN032 OVC0503329 87%30.27NA
2001:35E 37.00OvercastSCT032 OVC0503329 86%30.27NA
2001:15Calm7.00OvercastOVC0503329 87%30.27NA
2000:55Calm10.00OvercastSCT033 OVC0503329 84%30.28NA
2000:35Calm10.00OvercastOVC0503328 84%30.28NA
2000:15Calm10.00OvercastOVC0503328 81%30.28NA
1923:55Calm10.00OvercastOVC0503327 343379%30.28NA
1923:35Calm10.00OvercastOVC0503327 78%30.27NA
1923:15E 310.00OvercastOVC0553327 77%30.27NA
1922:55E 310.00OvercastOVC0553326 75%30.27NA
1922:35E 310.00OvercastOVC0553326 75%30.28NA
1922:15E 310.00OvercastOVC0553327 76%30.28NA
1921:55E 310.00OvercastOVC0553426 74%30.28NA
1921:45Calm10.00OvercastOVC0553427 75%30.28NA
1921:35E 510.00OvercastOVC0553426 74%30.27NA
1921:15E 37.00OvercastOVC0553428 79%30.27NA
1915:50Vrbl 55.00Overcast with HazeBKN035 OVC0603628 75%30.29NA
1914:52Vrbl 55.00Overcast with HazeSCT038 OVC0603628 75%30.28NA
1913:58Calm5.00Overcast with HazeSCT017 OVC0363628 75%30.31NA
1912:50Vrbl 55.00Overcast with HazeSCT017 OVC0343427 75%30.30NA
1911:50Vrbl 55.00Overcast with HazeBKN013 OVC0303427 75%30.31NA
1910:45Vrbl 55.00 Fog/MistBKN013 OVC0303228 87%30.33NA
1909:50Vrbl 55.00 Fog/MistOVC0093228 87%30.33NA
1908:45Calm4.00 Fog/MistBKN009 OVC0353028 93%30.33NA
1907:50Calm4.00 Fog/MistFEW0602827 93%30.31NA
1906:50Calm6.00 Fog/MistSCT0502827 93%30.31NA
1905:35N 35.00 Fog/MistOVC0363127 88%30.28NA
1905:15Calm5.00 Fog/MistOVC0363128 88%30.29NA
1904:55Calm7.00OvercastOVC0363128 87%30.29NA
1904:35Calm7.00OvercastOVC0363127 87%30.29NA
1904:15Calm7.00OvercastSCT029 OVC0363127 87%30.29NA
1903:55Calm7.00OvercastOVC0293127 87%30.30NA
1903:35Calm7.00OvercastOVC0293127 87%30.30NA
1903:15Calm7.00OvercastOVC0293127 86%30.30NA
1902:55Calm7.00OvercastOVC0293127 86%30.30NA
1902:35NE 37.00OvercastOVC0293127 85%30.29NA
1902:15Calm7.00OvercastOVC0293127 85%30.29NA
1901:55Calm7.00OvercastOVC0293127 86%30.29NA
1901:35Calm7.00OvercastOVC0293127 86%30.29NA
1901:15Calm7.00OvercastOVC0313128 87%30.29NA
1900:55Calm7.00OvercastOVC0313128 87%30.30NA
1900:35Calm7.00OvercastOVC0313127 83%30.29NA
1900:15Calm7.00OvercastOVC0333127 83%30.30NA
1823:55Calm7.00OvercastOVC0333126 323182%30.30NA
1823:35Calm7.00OvercastOVC0333126 82%30.30NA
1823:15Calm7.00OvercastOVC0333127 82%30.30NA
1822:55Calm7.00OvercastOVC0333127 82%30.31NA
1822:35Calm7.00OvercastOVC0333126 82%30.30NA
1822:15Calm7.00OvercastOVC0333227 82%30.30NA
1821:55Calm7.00OvercastOVC0333226 81%30.29NA
1821:50E 610.00OvercastOVC0333227 80%30.29NA
1821:35Calm7.00OvercastOVC0333227 82%30.29NA
1821:15Calm7.00OvercastOVC0333227 81%30.29NA
1820:55NE 810.00OvercastOVC0333227 80%30.29NA
1819:50NE 810.00OvercastOVC0353227 80%30.29NA
1818:50N 810.00OvercastOVC0373227 80%30.27NA
1817:50NE 710.00OvercastOVC0353227 80%30.26NA
1816:50NE 610.00OvercastOVC0393425 70%30.25NA
1815:52N 610.00OvercastOVC0373423 65%30.24NA
1814:50E 610.00OvercastBKN044 OVC0803423 65%30.24NA
1813:50NE 610.00OvercastOVC0443423 65%30.24NA
1812:50Vrbl 510.00OvercastOVC0483225 75%30.25NA
1811:50NE 710.00OvercastBKN048 OVC0703225 75%30.28NA
1810:50Vrbl 57.00 Light SnowOVC0703025 80%30.31NA
1809:50Vrbl 57.00 Light SnowBKN026 OVC0503023 75%30.33NA
1808:50E 710.00OvercastOVC0652823 80%30.31NA
1807:50NE 710.00OvercastOVC0752823 80%30.31NA
1806:50NE 710.00OvercastSCT040 OVC0752823 80%30.30NA
1805:35NE 310.00OvercastOVC0752822 80%30.28NA
D
a
t
e
Time
(cst)
Wind
(mph)
Vis.
(mi.)
WeatherSky Cond. AirDwptMax.Min.Relative
Humidity
altimeter
(in.)
sea level
(mb)
1 hr3 hr6 hr
6 hour
Temperature (ºF)PressurePrecipitation (in.)

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Last Modified: June 14, 2005
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