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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.
2905:15SW 57.00Partly CloudySCT0507574 98%29.98NA
2904:55Calm5.00 Fog/MistSCT0507474 98%29.98NA
2904:35Calm4.00 Fog/MistCLR7474 98%29.98NA
2904:15Calm5.00 Fog/MistCLR7473 98%29.97NA
2903:55Calm7.00FairCLR7473 97%29.96NA
2903:35Calm5.00 Fog/MistCLR7474 97%29.96NA
2903:15Calm7.00FairCLR7674 96%29.96NA
2902:55Calm7.00FairCLR7574 96%29.95NA
2902:35Calm7.00FairCLR7574 96%29.95NA
2902:15Calm2.50 Fog/MistCLR7674 94%29.95NA
2901:55Calm2.50 Fog/MistCLR7775 92%29.96NA
2901:35Calm5.00 Fog/MistCLR7775 93%29.94NA
2901:15Calm7.00Partly CloudySCT038 SCT0457674 94%29.95NA
2900:55Calm7.00 Light RainSCT038 SCT0457675 847695%29.94NA
2900:35Calm7.00 Thunderstorm in VicinityCLR7675 95%29.96NA
2900:15Calm7.00 Thunderstorm in VicinityCLR7675 95%29.97NA
2823:55Calm7.00FairCLR7675 96%29.98NA
2823:35Calm7.00FairCLR7775 95%29.98NA
2823:15Calm10.00FairCLR7775 94%29.97NA
2822:55Calm10.00FairCLR7775 94%29.97NA
2822:35Calm10.00FairCLR7875 91%29.96NA
2822:15Calm10.00FairCLR7875 91%29.95NA
2821:50SE 610.00Partly CloudySCT0467977 94%29.95NA
2820:50SE 610.00Partly CloudySCT0467977 94%29.95NA
2819:50SE 610.00Mostly CloudyBKN1208177 89%29.92NA
2818:50SE 610.00OvercastOVC1508473 70%29.91NA
2817:50S 610.00OvercastOVC1508272 70%29.91NA
2816:50S 1210.00Partly CloudySCT0448673 66%29.93NA
2815:50Calm10.00Partly CloudySCT0509379 63%29.91NA
2814:50Calm10.00Partly CloudySCT0419177 63%29.94NA
2813:54Calm10.00Partly CloudyFEW060 SCT1509177 63%29.96NA
2812:54SE 610.00Partly CloudySCT1509079 71%29.97NA
2811:54S 710.00Mostly CloudyBKN1508677 75%29.98NA
2810:55Calm10.00Mostly CloudyBKN1508677 75%29.98NA
2809:55Vrbl 510.00A Few CloudsFEW2008275 79%29.97NA
2808:50Vrbl 510.00A Few CloudsFEW2507975 89%29.97NA
2807:47Vrbl 310.00A Few CloudsFEW2507572 89%29.96NA
2806:50Vrbl 310.00Mostly CloudyFEW130 BKN2007070 100%29.96NA
2806:35Calm7.00FairCLR7069 98%29.96NA
2806:15Calm7.00FairCLR7069 99%29.96NA
2805:55Calm10.00FairCLR7070 99%29.95NA
2805:35Calm10.00FairCLR7070 98%29.95NA
2805:15Calm10.00FairCLR7069 98%29.95NA
2804:55Calm10.00FairCLR6969 98%29.95NA
2804:35Calm10.00FairCLR7069 98%29.94NA
2804:15Calm10.00FairCLR7070 98%29.94NA
2803:55Calm10.00FairCLR7170 98%29.94NA
2803:35Calm10.00FairCLR7170 97%29.94NA
2803:15Calm10.00FairCLR7170 96%29.93NA
2802:55Calm10.00FairCLR7170 97%29.94NA
2802:35Calm10.00FairCLR7170 96%29.95NA
2802:15Calm10.00FairCLR7170 97%29.95NA
2801:55Calm10.00FairCLR7170 97%29.96NA
2801:35Calm10.00FairCLR7170 96%29.96NA
2801:15Calm10.00FairCLR7270 95%29.95NA
2800:55Calm10.00FairCLR7270 827195%29.96NA0.01
2800:35Calm10.00FairCLR7170 95%29.95NA
2800:15Calm10.00FairCLR7270 94%29.95NA
2723:55Calm10.00FairCLR7270 94%29.95NA
2723:35SW 610.00FairCLR7170 95%29.96NA
2723:15S 710.00FairCLR7169 93%29.95NA
2722:55S 310.00FairCLR7269 93%29.96NA
2722:35Calm10.00FairCLR7269 90%29.96NA
2722:15N 610.00Partly CloudySCT0907369 89%29.97NA
2721:50NW 1810.00Mostly CloudySCT028 BKN0707770 79%29.98NA
2720:50NW 18 G 3310.00Mostly CloudySCT028 BKN0707770 79%29.98NA
2719:50SE 610.00Mostly CloudyBKN039 BKN0708175 84%29.94NA
2718:50SE 710.00Mostly CloudyBKN031 BKN0958275 79%29.92NA
2717:50SE 710.00Partly CloudySCT0658477 79%29.89NA
2716:50E 610.00Partly CloudySCT0278872 59%29.91NA
2715:50Calm8.00Partly CloudySCT0238879 75%29.90NA
2714:50Calm6.00Mostly Cloudy with HazeSCT022 BKN0338879 75%29.94NA
2713:45Calm5.00Mostly Cloudy with HazeBKN0558679 79%29.94NA
2712:50Calm5.00Overcast with HazeOVC0218477 79%29.95NA
2711:45E 35.00Mostly Cloudy with HazeBKN0178477 79%29.96NA
2707:50S 510.00Mostly CloudyBKN0117572 89%29.96NA
2706:50S 510.00Mostly CloudySCT013 BKN2507372 94%29.94NA
2706:35S 610.00FairCLR7371 95%29.94NA
2706:15Calm10.00FairCLR7371 95%29.92NA
2705:55Calm10.00FairCLR7371 95%29.92NA
2705:35Calm10.00Partly CloudySCT0147371 94%29.92NA
2705:15Calm10.00Partly CloudySCT0147372 94%29.92NA
2704:55S 310.00Mostly CloudySCT014 SCT047 BKN0657472 92%29.92NA
2704:35Calm10.00Mostly CloudySCT016 SCT047 BKN0657472 92%29.93NA
2704:15S 310.00Mostly CloudyBKN0167573 93%29.93NA
2703:55S 510.00OvercastOVC0187673 92%29.92NA
2703:35S 710.00 Thunderstorm in VicinityOVC0207775 94%29.93NA
2703:15S 77.00OvercastSCT016 OVC0237776 96%29.92NA
2702:55Calm10.00OvercastBKN018 OVC0237775 96%29.92NA
2702:35SW 37.00OvercastOVC0197675 97%29.92NA
2702:15Calm5.00 Thunderstorm in Vicinity Fog/MistOVC0217574 98%29.92NA
2701:55Calm5.00 Fog/MistSCT023 SCT033 BKN0397574 98%29.92NA
2701:35Calm5.00 Fog/MistSCT023 BKN041 OVC0607574 98%29.93NA
2701:15Calm7.00Mostly CloudyBKN047 BKN0507575 98%29.92NA
2700:55Calm7.00Partly CloudySCT050 SCT0607574 837597%29.93NA
2700:35Calm10.00Partly CloudySCT0607674 96%29.93NA
2700:15Calm10.00Partly CloudySCT026 SCT0507674 94%29.92NA
2623:55S 310.00Partly CloudySCT0267674 95%29.93NA
2623:35S 310.00FairCLR7574 97%29.92NA
2623:15Calm7.00FairCLR7575 98%29.92NA
2622:55Calm10.00Partly CloudySCT0607675 96%29.93NA
2622:35Calm10.00Partly CloudySCT0607675 96%29.92NA
2622:15Calm10.00Mostly CloudyBKN0607675 96%29.93NA
2621:45Calm10.00Mostly CloudyBKN027 BKN0507775 94%29.92NA
2620:50Calm10.00Partly CloudySCT0267775 94%29.90NA
2619:50Calm10.00NANA8175 84%29.89NA
2617:50S 910.00Partly CloudySCT1008475 74%29.91NA
2615:51S 810.00Mostly CloudyBKN150 BKN2508273 74%29.92NA
2614:56Vrbl 610.00Mostly CloudyBKN2508473 70%29.92NA
2613:59Vrbl 610.00Mostly CloudyFEW027 BKN150 BKN2508273 74%29.92NA
2612:51N 610.00OvercastSCT019 SCT027 BKN150 OVC2507772 83%29.97NA
2611:54S 610.00OvercastBKN120 OVC2507772 83%29.95NA
2610:59S 710.00OvercastBKN120 OVC2507772 83%29.96NA
2609:48S 910.00Mostly CloudySCT004 SCT043 BKN1207372 94%29.97NA
2608:51SW 810.00 Light RainSCT008 SCT048 BKN1207272 100%29.99NA
2607:54E 810.00 Light RainBKN100 OVC1207270 94%29.95NA
2606:53NW 67.00 RainBKN008 BKN036 OVC1007270 94%29.99NA
2606:35NW 37.00 RainBKN010 BKN065 OVC1007170 95%30.00NA0.08
2606:15NW 9 G 1710.00 Thunderstorm Rain in VicinityBKN010 OVC0167270 93%30.00NA0.02
2605:55NW 16 G 2810.00 Thunderstorm Light RainBKN017 BKN042 OVC0607369 88%29.99NA
2605:35W 13 G 267.00 Light RainSCT017 BKN025 OVC0857473 94%29.96NA
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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