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Alton / St. Louis Regional
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D
a
t
e
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.
0615:50S 17 G 2310.00Partly CloudySCT0808454 35%30.04NA
0614:50S 15 G 2110.00Partly CloudySCT0758452 33%30.07NA
0613:50S 12 G 1610.00Partly CloudySCT0708255 40%30.09NA
0612:50S 14 G 2310.00Partly CloudySCT0708254 37%30.11NA
0611:45S 1210.00Partly CloudySCT0608157 45%30.13NA
0610:50S 1210.00Partly CloudySCT2007957 48%30.14NA
0609:50S 1210.00Partly CloudySCT2007759 54%30.15NA
0608:50S 910.00Partly CloudySCT2007561 61%30.15NA
0607:50SE 510.00Partly CloudySCT2006664 94%30.16NA
0606:50Calm10.00Partly CloudySCT2005959 100%30.15NA
0606:35SE 510.00FairCLR5757 100%30.14NA
0606:15E 510.00FairCLR5656 100%30.13NA
0605:55Calm10.00FairCLR5757 100%30.12NA
0605:35Calm10.00FairCLR5757 100%30.12NA
0605:15E 310.00FairCLR5757 100%30.12NA
0604:55Calm10.00FairCLR5757 100%30.12NA
0604:35Calm10.00FairCLR5858 100%30.11NA
0604:15Calm10.00FairCLR6060 100%30.11NA
0603:55Calm10.00FairCLR5959 100%30.11NA
0603:35Calm10.00Partly CloudySCT1105959 100%30.12NA
0603:15Calm10.00Mostly CloudyBKN1106060 100%30.12NA
0602:55Calm10.00OvercastOVC1106261 99%30.12NA
0602:35Calm10.00OvercastOVC1106261 98%30.12NA
0602:15E 310.00OvercastOVC1206160 97%30.12NA
0601:55E 310.00Mostly CloudyBKN1206161 99%30.13NA
0601:35Calm7.00FairCLR6261 98%30.14NA
0601:15Calm10.00Partly CloudySCT0706361 95%30.14NA
0600:55Calm10.00FairCLR6361 786392%30.15NA
0600:35Calm10.00Partly CloudySCT0806361 94%30.15NA
0600:15Calm10.00Partly CloudySCT0806561 86%30.15NA
0523:55Calm10.00FairCLR6759 75%30.15NA
0523:35Calm7.00FairCLR6759 74%30.15NA
0523:15SE 310.00FairCLR6759 76%30.14NA
0522:55SE 510.00FairCLR6760 78%30.14NA
0522:35SE 310.00FairCLR6759 75%30.15NA
0522:15SE 310.00FairCLR6960 74%30.15NA
0521:50S 710.00Partly CloudySCT1207259 65%30.14NA
0520:50S 710.00Partly CloudySCT1207259 65%30.14NA
0519:50SE 610.00Partly CloudySCT1207361 65%30.11NA
0518:50S 710.00Mostly CloudyBKN1107755 47%30.10NA
0517:50S 1010.00Partly CloudySCT1107955 45%30.11NA
0516:50SW 1010.00OvercastOVC0907955 45%30.12NA
0515:50SW 910.00Mostly CloudyBKN070 BKN1206655 68%30.12NA
0513:50SW 910.00Mostly CloudyBKN070 BKN0808254 37%30.16NA
0512:50SW 1210.00Mostly CloudySCT070 BKN0808155 42%30.16NA
0511:47SW 910.00A Few CloudsFEW0408157 45%30.18NA
0510:50S 1210.00A Few CloudsFEW1007959 51%30.20NA
0509:54SW 1210.00Partly CloudySCT09075NA NA30.20NA
0508:50SW 910.00Mostly CloudyBKN08570NA NA30.20NA
0507:47S 810.00Mostly CloudyBKN08068NA NA30.19NA
0506:50S 910.00Mostly CloudyBKN080 BKN20063NA NA30.18NA
0506:35S 610.00Partly CloudySCT0806254 74%30.17NA
0506:15S 610.00FairCLR6253 73%30.16NA
0505:55S 610.00FairCLR6352 68%30.16NA
0505:35S 610.00FairCLR6452 65%30.15NA
0505:15S 810.00FairCLR6552 63%30.15NA
0504:55S 810.00FairCLR6552 62%30.15NA
0504:35S 810.00FairCLR6552 63%30.14NA
0504:15S 710.00FairCLR6552 63%30.14NA
0503:55S 610.00FairCLR6552 62%30.14NA
0503:35S 610.00FairCLR6651 59%30.14NA
0503:15S 810.00FairCLR6751 57%30.14NA
0502:55S 810.00FairCLR6751 57%30.15NA
0502:35S 810.00FairCLR6752 59%30.15NA
0502:15S 710.00FairCLR6751 56%30.15NA
0501:55S 810.00FairCLR6850 53%30.14NA
0501:35S 910.00FairCLR6850 52%30.14NA
0501:15S 810.00FairCLR6950 51%30.14NA
0500:55S 910.00FairCLR7050 807050%30.14NA
0500:35S 910.00Partly CloudySCT0757050 49%30.13NA
0500:15S 1010.00Mostly CloudyBKN0757150 47%30.13NA
0423:55S 1010.00OvercastOVC0757250 45%30.12NA
0423:35S 1210.00OvercastOVC0757250 45%30.11NA
0423:15S 910.00Partly CloudySCT0757250 46%30.11NA
0422:55S 810.00Partly CloudySCT0807250 46%30.10NA
0422:35S 710.00Mostly CloudyBKN0807350 45%30.10NA
0422:15S 710.00OvercastOVC0807449 41%30.11NA
0421:50SE 610.00OvercastOVC08072NA NA30.08NA
0420:50SE 610.00OvercastOVC08072NA NA30.08NA
0419:50S 710.00Mostly CloudyBKN07077NA NA30.06NA
0418:50S 810.00Partly CloudySCT07081NA NA30.05NA
0417:50SW 1210.00Mostly CloudyBKN20082NA NA30.06NA
0415:50S 1210.00Mostly CloudyBKN20082NA NA30.07NA
0413:50S 1210.00Mostly CloudySCT060 BKN2008150 34%30.11NA
0412:50S 1210.00Mostly CloudySCT045 BKN2008152 37%30.12NA
0411:45S 12 G 1610.00Mostly CloudyBKN25079NA NA30.12NA
0410:45S 1010.00Mostly CloudyBKN25075NA NA30.12NA
0407:45S 1210.00OvercastOVC11064NA NA30.08NA
0406:35S 710.00OvercastOVC1106454 69%30.07NA
0406:15S 610.00OvercastSCT075 OVC1106454 70%30.06NA
0405:55S 610.00OvercastSCT065 BKN075 OVC1106553 64%30.06NA
0405:35S 610.00OvercastOVC0606652 61%30.04NA
0405:15S 610.00OvercastOVC0606651 58%30.03NA
0404:55S 610.00Mostly CloudyBKN060 BKN1206651 58%30.02NA
0404:35S 710.00Partly CloudySCT1206650 56%30.02NA
0404:15S 710.00OvercastOVC1206749 54%30.01NA
0403:55S 810.00Mostly CloudyBKN1206749 53%30.01NA
0403:35S 810.00Mostly CloudyBKN1206749 53%30.00NA
0403:15S 910.00Mostly CloudyBKN1206749 52%30.00NA
0402:55S 810.00Mostly CloudyBKN1206749 52%30.00NA
0402:35S 810.00Mostly CloudyBKN1206748 51%30.00NA
0402:15S 910.00Mostly CloudyBKN1206848 49%30.01NA
0401:55S 810.00Mostly CloudyBKN1206847 48%30.01NA
0401:35S 910.00Partly CloudySCT1206947 46%30.01NA
0401:15S 810.00FairCLR6947 46%30.01NA
0400:55S 810.00FairCLR6947 776845%30.01NA
0400:35S 910.00FairCLR7046 43%30.01NA
0400:15S 1010.00FairCLR7046 42%30.00NA
0323:55S 1010.00FairCLR7146 41%29.99NA
0323:35S 1210.00FairCLR7145 39%29.98NA
0323:15S 910.00FairCLR7145 39%29.98NA
0322:55S 810.00FairCLR7145 39%29.97NA
0322:35S 810.00 Light RainCLR7045 40%29.97NA
0322:15SE 610.00FairCLR7144 38%29.98NA
0321:50S 1410.00Partly CloudySCT2006845 43%29.98NA
0320:50S 1410.00Partly CloudySCT2007343 33%29.97NA
0319:50S 1410.00Mostly CloudyBKN2007537 25%29.96NA
0318:50S 1410.00Mostly CloudyBKN2007736 22%29.95NA
0316:50S 14 G 2310.00Partly CloudySCT2008139 23%29.94NA
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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