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Alton / St. Louis Regional
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D
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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.
2818:50SE 910.00ClearSKC3914 36%30.28NA
2817:50SE 910.00ClearSKC4310 26%30.28NA
2816:45Vrbl 910.00ClearSKC4310 26%30.28NA
2814:45Vrbl 610.00ClearSKC4110 28%30.30NA
2810:45E 1010.00A Few CloudsFEW2503418 51%30.35NA
2808:45E 610.00Partly CloudySCT2502823 80%30.31NA
2807:45E 610.00Mostly CloudyBKN2502721 80%30.30NA
2806:35E 510.00FairCLR2721 78%30.27NA
2806:15E 310.00FairCLR2721 77%30.26NA
2805:55NE 510.00FairCLR2821 75%30.24NA
2805:35E 510.00FairCLR2820 74%30.23NA
2805:15E 310.00FairCLR2822 78%30.23NA
2804:55Calm10.00FairCLR2823 82%30.22NA
2804:35Calm10.00FairCLR2724 90%30.21NA
2804:15Calm10.00FairCLR2825 89%30.21NA
2803:55Calm10.00FairCLR2725 92%30.21NA
2803:35Calm10.00FairCLR2725 93%30.21NA
2803:15Calm10.00FairCLR2824 86%30.21NA
2802:55Calm10.00FairCLR2824 84%30.21NA
2802:35Calm10.00FairCLR2822 79%30.21NA
2802:15Calm10.00FairCLR2823 83%30.21NA
2801:55Calm10.00FairCLR2824 86%30.22NA
2801:35Calm10.00FairCLR2825 86%30.21NA
2801:15Calm10.00FairCLR2824 83%30.21NA
2800:55Calm10.00FairCLR2923 392780%30.21NA
2800:35Calm10.00FairCLR2921 71%30.21NA
2800:15Calm10.00FairCLR2816 62%30.21NA
2723:55Calm10.00FairCLR2920 71%30.22NA
2723:35Calm10.00FairCLR3020 66%30.22NA
2723:15Calm10.00FairCLR3117 58%30.22NA
2722:55Calm10.00FairCLR3121 67%30.21NA
2722:35Calm10.00FairCLR3220 63%30.21NA
2722:15Calm10.00FairCLR3217 54%30.21NA
2721:50NE 610.00ClearSKC3216 51%30.20NA
2720:50N 610.00ClearSKC3418 51%30.17NA
2719:50NW 710.00Partly CloudySCT0503714 38%30.16NA
2718:50N 1210.00Partly CloudySCT0503912 33%30.15NA
2717:50NW 1510.00Mostly CloudyBKN0504116 36%30.15NA
2716:45NW 9 G 1710.00Mostly CloudyBKN0503914 36%30.15NA
2715:45NW 12 G 1610.00Mostly CloudyBKN0503914 36%30.16NA
2713:45NW 10 G 1610.00OvercastSCT042 SCT050 OVC0553919 45%30.18NA
2712:45N 810.00OvercastBKN045 OVC0503618 48%30.19NA
2711:45N 610.00OvercastSCT041 OVC0493619 52%30.19NA
2710:50N 710.00OvercastOVC0503619 52%30.19NA
2708:50N 610.00OvercastSCT028 OVC0483423 65%30.16NA
2707:50N 710.00Partly CloudySCT026 SCT1003423 65%30.14NA
2706:50N 610.00ClearSKC3425 70%30.13NA
2706:35N 510.00OvercastSCT026 BKN047 OVC0703424 68%30.12NA
2706:15N 610.00OvercastSCT027 OVC0703425 70%30.11NA
2705:55N 810.00OvercastSCT045 SCT050 OVC0703424 67%30.11NA
2705:35N 510.00OvercastSCT035 BKN043 OVC0503424 67%30.11NA
2705:15N 710.00OvercastSCT044 OVC0503526 70%30.11NA
2704:55N 510.00OvercastSCT050 OVC0653526 71%30.10NA
2704:35N 6 G 1610.00OvercastOVC0653526 70%30.09NA
2704:15N 610.00OvercastBKN065 OVC0753627 71%30.09NA
2703:55N 510.00OvercastSCT065 OVC0753626 69%30.09NA
2703:35N 610.00OvercastBKN075 OVC0953626 67%30.08NA
2703:15N 710.00OvercastOVC1103726 64%30.08NA
2702:55N 910.00OvercastOVC1103726 66%30.08NA
2702:35N 910.00OvercastOVC1103726 66%30.08NA
2702:15N 810.00Mostly CloudyBKN1203826 64%30.08NA
2701:55N 9 G 2010.00Partly CloudySCT1103826 60%30.06NA
2701:35N 1010.00Partly CloudySCT1103926 58%30.05NA
2701:15N 910.00Partly CloudySCT100 SCT1203928 63%30.05NA
2700:55N 510.00Partly CloudySCT1204027 473460%30.05NA
2700:35N 610.00Partly CloudySCT1204026 58%30.05NA
2700:15NW 610.00FairCLR3927 62%30.05NA
2623:55NW 510.00FairCLR3828 68%30.05NA
2623:35NW 510.00FairCLR3531 84%30.06NA
2623:15NW 310.00FairCLR3531 86%30.06NA
2622:55NW 310.00FairCLR3730 79%30.06NA
2622:35W 310.00FairCLR3725 63%30.06NA
2622:15W 310.00FairCLR3824 58%30.06NA
2618:45NW 1310.00ClearSKC4623 40%30.04NA
2615:53NW 1410.00ClearSKC4825 40%30.05NA
2614:55NW 14 G 1810.00ClearSKC4627 46%30.04NA
2613:50NW 13 G 2010.00Partly CloudySCT1204332 66%30.06NA
2612:50NW 1510.00Mostly CloudySCT027 BKN1204130 66%30.08NA
2611:50NW 12 G 1810.00OvercastBKN025 OVC1204132 70%30.08NA
2610:50N 9 G 1710.00OvercastBKN021 OVC1203932 75%30.08NA
2609:50NW 12 G 1810.00OvercastBKN023 OVC1203730 75%30.08NA
2608:50N 1410.00OvercastBKN021 OVC1203630 81%30.08NA
2606:50NW 7 G 187.00OvercastOVC0103737 100%30.04NA
2606:35N 67.00 Light DrizzleBKN010 OVC0183838 97%30.04NA
2606:15N 97.00 DrizzleSCT012 BKN020 OVC0493938 97%30.03NA
2605:55N 77.00 RainSCT012 BKN035 OVC0493938 98%30.02NA0.01
2605:35N 77.00 RainBKN013 OVC0173938 97%30.01NA0.01
2605:15N 77.00 Light RainOVC0134039 98%30.01NA0.01
2604:55N 67.00 DrizzleBKN009 OVC0174040 98%30.01NA
2604:35N 77.00 DrizzleBKN011 OVC0184140 97%30.01NA
2604:15N 8 G 185.00 Light RainOVC0094140 97%30.00NA
2603:55N 95.00 Light RainOVC0094140 97%29.98NA0.030.04
2603:35N 10 G 175.00 Light RainBKN007 OVC0114241 97%29.99NA0.03
2603:15N 64.00 RainOVC0094241 95%30.01NA0.01
2602:55N 8 G 207.00 RainOVC0094341 93%30.01NA
2602:35N 97.00 Light DrizzleOVC0094341 94%30.00NA
2602:15N 8 G 175.00 Light RainOVC0094341 95%29.99NA
2601:55N 12 G 185.00 RainOVC0094341 94%30.00NA0.01
2601:35N 10 G 207.00 RainOVC0094341 93%30.00NA0.01
2601:15N 13 G 235.00 Light RainOVC0094342 93%30.00NA
2600:55N 12 G 165.00 RainOVC0094442 514494%30.01NA0.070.32
2600:35N 75.00 RainOVC0094442 94%30.02NA0.05
2600:15N 12 G 165.00 RainOVC0094443 94%30.03NA0.03
2523:55N 10 G 175.00 RainBKN009 BKN016 OVC0604543 95%30.03NA0.11
2523:35N 10 G 185.00 RainBKN009 OVC0134644 95%30.04NA0.08
2523:15N 12 G 185.00 RainOVC0094745 95%30.03NA0.03
2522:55N 12 G 185.00 RainBKN009 OVC0124846 95%30.02NA0.08
2522:35N 94.00 Light RainOVC0094847 95%30.01NA0.06
2522:15N 74.00 RainSCT009 SCT024 OVC0754847 96%30.03NA0.03
2521:55NE 125.00 Light RainBKN075 OVC0854846 94%30.03NA
2520:58NE 97.00 Thunderstorm Light Rain in VicinityOVC0954846 94%30.00NA
2519:59NE 97.00OvercastOVC0955046 88%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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