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Alton / St. Louis Regional
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D
a
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Time
(cdt)
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.
3020:50W 610.00OvercastOVC2007272 100%29.88NA
3019:50W 610.00OvercastOVC2007575 100%29.87NA
3018:50W 710.00ClearSKC7972 79%29.85NA
3017:50W 710.00ClearSKC8173 79%29.85NA
3016:50W 1410.00OvercastOVC2008273 74%29.85NA
3015:50W 1410.00OvercastOVC2008272 70%29.87NA
3014:50SW 910.00OvercastOVC2008272 70%29.87NA
3013:50W 810.00OvercastOVC2008172 74%29.88NA
3012:50SW 910.00OvercastOVC2007972 79%29.89NA
3011:47W 710.00ClearSKC7973 84%29.90NA
3010:51W 88.00ClearSKC7773 89%29.91NA
3008:54W 57.00ClearSKC7272 100%29.91NA
3007:50SW 67.00ClearSKC7070 100%29.89NA
3006:50W 55.00 Fog/MistSKC6666 100%29.89NA
3006:35Calm3.00 Fog/MistCLR6666 100%29.88NA
3006:15Calm1.75 Fog/MistVV0076666 100%29.88NA
3005:55Calm4.00 Fog/MistCLR6666 100%29.87NA
3005:35Calm5.00 Fog/MistCLR6767 100%29.87NA
3005:15W 37.00FairCLR6767 100%29.87NA
3004:55Calm7.00FairCLR6767 100%29.87NA
3004:35Calm5.00 Fog/MistCLR6666 100%29.87NA
3004:15SW 37.00FairCLR6767 100%29.86NA
3003:55Calm7.00FairCLR6767 100%29.87NA
3003:35Calm10.00FairCLR6868 100%29.87NA
3003:15Calm10.00FairCLR6868 100%29.87NA
3002:55Calm10.00FairCLR6868 100%29.87NA
3002:35Calm10.00FairCLR6868 100%29.86NA
3002:15Calm10.00FairCLR6767 100%29.86NA
3001:55Calm10.00FairCLR6767 100%29.87NA
3001:35Calm10.00FairCLR6868 100%29.87NA
3001:15SW 310.00FairCLR6767 100%29.88NA
3000:55Calm10.00Partly CloudySCT0506868 7667100%29.88NA
3000:35Calm10.00Partly CloudySCT0506868 100%29.89NA
3000:15Calm10.00FairCLR6868 100%29.88NA
2923:35Calm10.00FairCLR6969 100%29.87NA
2923:15Calm10.00Partly CloudySCT0556969 100%29.88NA
2922:55Calm10.00FairCLR6969 100%29.88NA
2922:35Calm10.00FairCLR7070 100%29.88NA
2922:15SE 310.00FairCLR7070 100%29.87NA
2921:50Calm10.00OvercastSCT060 OVC0857373 100%29.85NA
2920:50Calm10.00OvercastSCT060 OVC0857373 100%29.85NA
2919:50Calm10.00OvercastSCT040 OVC0957575 100%29.85NA
2918:50NW 610.00Mostly CloudyBKN0407572 89%29.85NA
2917:50W 610.00Mostly CloudyBKN0407972 79%29.86NA
2916:50NW 610.00Partly CloudySCT0397972 79%29.86NA
2915:53NW 710.00Partly CloudySCT0367972 79%29.87NA
2914:50NW 910.00Partly CloudySCT0327972 79%29.88NA
2913:47NW 1210.00Mostly CloudyBKN0337770 79%29.88NA
2912:50NW 1410.00Mostly CloudyBKN0277570 83%29.88NA
2911:50NW 1210.00Mostly CloudyBKN0237370 89%29.88NA
2910:45NW 810.00Mostly CloudyBKN0197370 89%29.87NA
2909:45NW 710.00OvercastSCT013 OVC0217070 100%29.87NA
2908:45NW 610.00OvercastBKN009 OVC0146868 100%29.86NA
2906:45W 57.00Partly CloudySCT1106868 100%29.81NA
2906:35W 57.00FairCLR6767 100%29.81NA
2906:15W 37.00FairCLR6767 100%29.80NA
2905:55W 57.00FairCLR6767 100%29.79NA
2905:35W 57.00FairCLR6767 100%29.78NA
2905:15W 610.00FairCLR6767 100%29.78NA
2904:55W 810.00FairCLR6767 100%29.78NA
2904:35W 610.00FairCLR6767 100%29.77NA
2904:15SW 310.00FairCLR6767 100%29.76NA
2903:55W 610.00FairCLR6767 100%29.76NA
2903:35W 510.00FairCLR6666 100%29.76NA
2903:15W 610.00FairCLR6666 100%29.75NA
2902:55W 710.00FairCLR6868 100%29.75NA
2902:35W 810.00FairCLR6767 100%29.75NA
2902:15W 710.00FairCLR6767 100%29.76NA
2901:55W 710.00FairCLR6868 100%29.75NA
2901:35W 710.00Partly CloudySCT1206868 100%29.76NA
2901:15W 710.00 RainSCT050 SCT060 BKN1207070 100%29.76NA
2900:55W 1210.00Partly CloudySCT060 SCT070 SCT0757070 7268100%29.76NA1.02
2900:35SW 1010.00Mostly CloudySCT060 SCT070 BKN0957070 100%29.77NA
2900:15SW 1210.00Partly CloudySCT060 SCT070 SCT0807070 100%29.76NA
2823:55SW 1010.00Mostly CloudyBKN060 BKN080 BKN1006969 100%29.76NA
2823:35S 710.00OvercastBKN060 OVC0706969 100%29.77NA
2823:15SW 610.00Partly CloudySCT070 SCT1106868 100%29.78NA
2822:55S 610.00FairCLR6868 100%29.78NA
2822:35S 910.00Partly CloudySCT1106969 100%29.78NA
2822:15S 1010.00Mostly CloudySCT011 SCT025 BKN0507070 100%29.78NA
2821:48S 1210.00 RainFEW015 BKN036 OVC0607070 100%29.78NA
2820:50SW 1410.00 RainOVC0407270 94%29.80NA
2818:53SE 1210.00OvercastBKN060 OVC1107272 100%29.79NA
2817:45SE 1210.00Mostly CloudyFEW040 BKN1007372 94%29.83NA
2816:47SE 1210.00Mostly CloudyFEW040 BKN1007573 94%29.85NA
2815:48SE 1410.00OvercastFEW040 BKN110 OVC2007573 94%29.87NA
2814:45E 610.00OvercastSCT055 SCT075 OVC1007070 100%29.92NA
2810:58W 810.00Mostly CloudySCT035 BKN0507770 79%29.98NA
2809:56SW 710.00Partly CloudySCT2007570 83%29.98NA
2808:50SW 810.00Partly CloudySCT2007270 94%29.99NA
2807:55SW 810.00Partly CloudySCT2007070 100%29.99NA
2806:52SW 67.00Partly CloudySCT2006464 100%29.98NA
2806:35Calm4.00 Fog/MistSCT0426262 100%29.99NA
2806:15Calm0.75 Fog/MistBKN003 BKN0506161 100%29.98NA
2805:55Calm0.15 FogOVC0036060 100%29.98NA
2805:35Calm0.50 FogOVC0036060 100%29.98NA
2805:15Calm0.75 Fog/MistOVC0036060 100%29.98NA
2804:55Calm0.25 FogOVC0036060 100%29.98NA
2804:35Calm2.00 Fog/MistBKN0036060 100%29.98NA
2804:15Calm4.00 Fog/MistSCT0036060 100%29.98NA
2803:55Calm4.00 Fog/MistSCT0036262 100%29.97NA
2803:35Calm0.50 FogBKN0036161 100%29.98NA
2803:15Calm1.00 Fog/MistVV0076161 100%29.97NA
2802:55Calm5.00 Fog/MistCLR6262 100%29.98NA
2802:35Calm5.00 Fog/MistCLR6262 100%29.99NA
2802:15Calm3.00 Fog/MistSCT0046262 100%29.99NA
2801:55Calm0.75 Fog/MistBKN0046363 100%29.99NA
2801:35Calm1.50 Fog/MistSCT0026363 100%29.99NA
2801:15Calm2.50 Fog/MistCLR6363 100%30.00NA
2800:55Calm5.00 Fog/MistCLR6363 7463100%30.00NA
2800:35Calm2.50 Fog/MistCLR6363 100%30.00NA
2800:15Calm4.00 Fog/MistCLR6464 100%30.01NA
2723:55Calm5.00 Fog/MistCLR6464 100%30.01NA
2723:35Calm7.00FairCLR6464 100%30.01NA
2723:15Calm5.00 Fog/MistCLR6464 100%30.01NA
2722:55Calm7.00FairCLR6464 100%30.01NA
2722:35W 310.00FairCLR6767 100%30.01NA
2722:15Calm10.00FairCLR6767 100%30.01NA
D
a
t
e
Time
(cdt)
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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