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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.
2513:50S 1210.00Partly CloudySCT0458268 62%29.98NA
2512:50S 1410.00Mostly CloudyFEW035 BKN2007968 70%30.00NA
2511:45S 1210.00Mostly CloudySCT027 BKN2007764 65%30.02NA
2506:45S 1310.00OvercastBKN015 OVC0237070 100%29.94NA
2506:35S 1510.00OvercastBKN015 OVC0246969 100%29.94NA
2506:15S 1510.00OvercastBKN017 OVC0256969 100%29.93NA
2505:55S 16 G 2110.00OvercastSCT019 OVC0256969 100%29.93NA
2505:35S 17 G 2310.00OvercastSCT014 BKN019 OVC0496969 100%29.92NA
2505:15S 1310.00OvercastSCT015 OVC0206969 100%29.91NA
2504:55S 16 G 2210.00OvercastBKN020 BKN029 OVC0456969 100%29.91NA
2504:35S 15 G 2210.00Mostly CloudySCT015 SCT032 BKN0476868 100%29.91NA
2504:15S 1510.00Mostly CloudySCT013 BKN019 BKN0706868 100%29.90NA
2503:55S 14 G 1710.00OvercastOVC0136868 100%29.89NA
2503:35S 1310.00OvercastOVC0156868 100%29.89NA
2503:15S 14 G 2010.00OvercastBKN011 OVC0176868 100%29.89NA
2502:55S 14 G 2110.00 RainOVC0136868 100%29.89NA
2502:35S 1310.00OvercastOVC0136969 100%29.89NA
2502:15S 14 G 2210.00OvercastOVC0136969 100%29.89NA
2501:55S 16 G 2110.00OvercastOVC0156969 100%29.89NA
2501:35SE 15 G 2110.00OvercastBKN015 OVC0276969 100%29.89NA
2501:15S 1410.00OvercastBKN013 BKN018 OVC0276868 100%29.89NA
2500:55SE 18 G 2510.00Mostly CloudyBKN013 BKN018 BKN0436868 7967100%29.90NA0.35
2500:35SE 1210.00Partly CloudySCT015 SCT0206868 100%29.91NA
2500:15SE 1010.00FairCLR6767 100%29.90NA
2423:55SE 10 G 1610.00Partly CloudySCT047 SCT0556767 100%29.91NA0.01
2423:35SE 1310.00Partly CloudySCT047 SCT055 SCT0856767 100%29.91NA0.01
2423:15SE 810.00 Light RainSCT085 SCT1206969 100%29.91NA0.01
2422:55SE 12 G 2010.00 Thunderstorm Light Rain in VicinitySCT1107070 100%29.92NA0.08
2422:35S 13 G 1710.00 Light RainSCT035 SCT049 BKN1107070 100%29.92NA0.06
2422:15SE 910.00OvercastSCT037 BKN048 OVC0656969 100%29.92NA0.04
2421:50S 126.00OvercastSCT017 BKN060 OVC0907070 100%29.93NA
2420:50S 1210.00Mostly CloudySCT048 BKN1107768 74%29.92NA
2419:50S 1610.00Mostly CloudyBKN1007964 61%29.91NA
2418:50S 1410.00Mostly CloudySCT060 BKN1207964 61%29.91NA
2417:50SE 18 G 2810.00Mostly CloudyBKN065NANA NA29.92NA
2416:45S 18 G 2510.00Mostly CloudySCT048 SCT065 BKN1108266 58%29.92NA
2411:50S 13 G 2110.00Mostly CloudySCT041 BKN1108166 62%30.03NA
2410:55S 1310.00Mostly CloudySCT060 BKN0857568 78%30.05NA
2409:54S 1410.00Mostly CloudySCT043 SCT065 BKN2007564 69%30.06NA
2408:52S 1210.00Partly CloudySCT0657263 73%30.08NA
2407:56SE 1210.00Mostly CloudySCT050 BKN2006861 78%30.10NA
2406:50SE 910.00Partly CloudySCT050 SCT1506459 83%30.11NA
2406:35E 910.00Partly CloudySCT0556458 82%30.11NA
2406:15E 910.00Partly CloudySCT0496457 80%30.10NA
2405:55E 1010.00OvercastOVC0496357 81%30.11NA
2405:35E 810.00Mostly CloudyBKN0496356 79%30.11NA
2405:15E 910.00FairCLR6456 76%30.11NA
2404:55E 810.00Partly CloudySCT1206456 77%30.11NA
2404:35E 510.00Partly CloudySCT1206456 77%30.11NA
2404:15E 610.00FairCLR6456 75%30.11NA
2403:55E 610.00FairCLR6457 80%30.11NA
2403:35E 610.00FairCLR6457 80%30.12NA
2403:15E 610.00FairCLR6457 79%30.12NA
2402:55E 310.00FairCLR6457 79%30.13NA
2402:35NE 610.00FairCLR6457 76%30.14NA
2402:15NE 310.00FairCLR6656 71%30.14NA
2401:55E 510.00FairCLR6556 72%30.13NA
2401:35E 610.00FairCLR6556 71%30.14NA
2401:15E 510.00FairCLR6556 71%30.14NA
2400:55E 710.00FairCLR6656 726470%30.14NA
2400:35E 510.00FairCLR6556 71%30.15NA
2400:15E 710.00FairCLR6655 69%30.15NA
2323:55E 510.00FairCLR6456 76%30.16NA
2323:35E 610.00FairCLR6655 69%30.15NA
2323:15E 610.00FairCLR6555 71%30.16NA
2322:55E 310.00FairCLR6655 69%30.16NA
2322:35E 610.00FairCLR6655 68%30.17NA
2322:15E 510.00FairCLR6555 72%30.18NA
2321:50SE 710.00ClearSKC6854 60%30.17NA
2320:50SE 710.00Partly CloudySCT1206854 60%NANA
2319:50SE 910.00Mostly CloudyBKN1307052 53%30.17NA
2318:50SE 910.00Mostly CloudyBKN0807252 50%30.17NA
2317:50S 1210.00Partly CloudySCT2007352 47%30.18NA
2316:45SE 1410.00Partly CloudySCT2007750 39%30.20NA
2310:57S 1210.00Partly CloudySCT1807354 50%30.32NA
2309:52S 910.00Partly CloudySCT1007052 53%30.33NA
2308:54SE 610.00Mostly CloudySCT090 BKN1106857 69%30.34NA
2307:54Calm10.00Mostly CloudyBKN0906461 88%30.33NA
2306:50Calm10.00OvercastOVC1106161 100%30.32NA
2306:35Calm10.00OvercastBKN100 OVC1206060 100%30.32NA
2306:15Calm10.00OvercastOVC1006060 100%30.31NA
2305:55Calm10.00 Light RainBKN1106060 99%30.30NA
2305:35Calm10.00Mostly CloudySCT100 BKN1206059 97%30.30NA
2305:15Calm10.00Mostly CloudyBKN1106059 97%30.30NA
2304:55Calm10.00Mostly CloudyBKN1106059 97%30.30NA
2304:35S 510.00Mostly CloudyBKN1105959 100%30.29NA
2304:15Calm10.00Mostly CloudyBKN1106060 97%30.29NA
2303:55S 310.00OvercastOVC1106060 100%30.28NA
2303:35Calm10.00OvercastOVC1106060 99%30.28NA
2303:15Calm10.00OvercastOVC1106060 99%30.27NA
2302:55Calm10.00OvercastOVC1106060 100%30.26NA
2302:35Calm10.00OvercastOVC1106060 100%30.26NA
2302:15Calm10.00OvercastOVC1106159 95%30.26NA
2301:55Calm10.00OvercastOVC1106160 96%30.26NA
2301:35Calm10.00OvercastOVC1106060 100%30.26NA
2301:15SE 310.00OvercastOVC1106060 100%30.25NA
2300:55Calm10.00OvercastOVC1206059 706096%30.26NA
2300:35Calm10.00Mostly CloudyBKN1206159 93%30.25NA
2300:15Calm10.00Partly CloudySCT1206160 96%30.25NA
2223:55Calm10.00Partly CloudySCT1206160 96%30.25NA
2223:35Calm10.00FairCLR6259 92%30.26NA
2223:15Calm10.00FairCLR6159 91%30.26NA
2222:55Calm10.00FairCLR6159 93%30.26NA
2222:35Calm10.00FairCLR6158 89%30.27NA
2222:15Calm10.00FairCLR6257 85%30.27NA
2221:45Calm10.00OvercastOVC1506455 73%30.26NA
2216:52W 610.00OvercastOVC1507343 33%30.22NA
2215:53W 810.00OvercastOVC1807348 41%30.23NA
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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