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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.
2403:15SE 67.00OvercastBKN009 OVC0137271 97%30.07NA
2402:55SE 67.00Mostly CloudyBKN007 BKN0137271 97%30.07NA
2402:35SE 67.00Mostly CloudyBKN0097271 96%30.07NA
2402:15SE 610.00OvercastOVC0097371 95%30.08NA
2401:55SE 710.00OvercastOVC0097371 96%30.08NA
2401:35SE 710.00OvercastOVC0097371 95%30.09NA
2401:15SE 710.00OvercastOVC0097271 96%30.09NA
2400:55SE 610.00OvercastBKN009 OVC1107271 736996%30.09NA
2400:35SE 810.00OvercastSCT009 OVC1207270 95%30.09NA
2400:15SE 810.00Partly CloudySCT009 SCT014 SCT1207270 95%30.09NA
2323:55SE 710.00FairCLR7169 95%30.09NA
2323:35SE 710.00FairCLR7069 95%30.10NA
2323:15E 710.00Partly CloudySCT0247068 93%30.10NA
2322:55SE 710.00Mostly CloudyBKN0267068 93%30.10NA
2322:35SE 710.00Mostly CloudyBKN0287068 93%30.10NA
2322:15SE 610.00Partly CloudySCT0287067 92%30.10NA
2321:47SE 910.00Partly CloudySCT1307066 88%30.10NA
2320:50SE 910.00Mostly CloudyBKN1307068 94%30.11NA
2319:47SE 710.00OvercastBKN120 OVC2007268 88%30.11NA
2318:55SE 710.00OvercastBKN022 OVC1007268 88%30.12NA
2317:49SE 910.00OvercastBKN022 OVC0507368 83%30.12NA
2316:50SE 810.00OvercastOVC0227368 83%30.15NA
2315:50S 910.00OvercastOVC0227368 83%30.16NA
2314:48SE 910.00OvercastSCT025 BKN055 OVC1007266 83%30.16NA
2312:50SE 1210.00OvercastOVC0266866 94%30.21NA
2310:50S 910.00OvercastSCT048 OVC0557364 74%30.22NA
2309:50S 910.00OvercastSCT043 OVC0707364 74%30.23NA
2308:50SE 610.00Mostly CloudyBKN0477066 88%30.22NA
2307:50SE 610.00Partly CloudySCT0476463 94%30.20NA
2306:50SE 610.00Partly CloudySCT0465959 100%30.20NA
2306:35Calm7.00FairCLR5958 97%30.20NA
2306:15E 310.00Partly CloudySCT0445858 99%30.19NA
2305:55E 310.00FairCLR5858 98%30.18NA
2305:35E 310.00FairCLR5857 97%30.18NA
2305:15Calm10.00FairCLR5857 98%30.17NA
2304:55E 310.00FairCLR5858 99%30.17NA
2304:35Calm10.00FairCLR5858 99%30.17NA
2304:15Calm10.00FairCLR5858 98%30.18NA
2303:55Calm10.00FairCLR5857 97%30.17NA
2303:35E 310.00FairCLR5857 99%30.17NA
2303:15Calm10.00FairCLR5858 97%30.17NA
2302:55Calm10.00FairCLR5858 98%30.17NA
2302:35Calm10.00FairCLR5857 97%30.17NA
2302:15Calm10.00FairCLR5959 97%30.17NA
2301:55Calm10.00FairCLR6059 97%30.17NA
2301:35Calm10.00FairCLR6058 95%30.18NA
2301:15Calm10.00FairCLR6260 94%30.18NA
2300:55Calm10.00FairCLR6260 746094%30.18NA
2300:35Calm10.00FairCLR6260 93%30.18NA
2300:15Calm10.00FairCLR6259 92%30.19NA
2223:55SE 310.00FairCLR6159 92%30.18NA
2223:35SE 310.00FairCLR6259 92%30.18NA
2223:15SE 310.00FairCLR6059 94%30.18NA
2222:55E 310.00FairCLR6259 90%30.18NA
2222:35SE 310.00FairCLR6360 89%30.18NA
2222:15SE 310.00FairCLR6360 89%30.18NA
2221:48SE 610.00ClearSKC6359 88%30.18NA
2220:48SE 610.00A Few CloudsFEW2006461 88%30.16NA
2219:47SE 610.00A Few CloudsFEW2007061 73%30.14NA
2218:49SE 710.00A Few CloudsFEW2007561 61%30.13NA
2217:50SE 710.00A Few CloudsFEW2007957 48%30.14NA
2216:50SE 610.00A Few CloudsFEW2007955 45%30.15NA
2215:47S 810.00A Few CloudsFEW2007954 42%30.16NA
2214:50Calm10.00ClearSKC7954 42%30.17NA
2213:50Calm10.00ClearSKC7955 45%30.18NA
2212:50Calm10.00ClearSKC7754 44%30.20NA
2211:45Calm10.00Partly CloudyFEW040 SCT2507755 47%30.21NA
2210:45S 510.00Partly CloudySCT2507555 50%30.22NA
2209:45Calm10.00ClearSKC7261 69%30.22NA
2208:45Calm10.00ClearSKC6659 78%30.21NA
2207:45Calm10.00ClearSKC5959 100%30.20NA
2206:45Calm10.00Partly CloudySCT2505555 100%30.18NA
2206:35Calm7.00FairCLR5555 99%30.18NA
2206:15Calm5.00 Fog/MistCLR5554 99%30.17NA
2205:55Calm10.00FairCLR5555 99%30.16NA
2205:35Calm10.00FairCLR5554 99%30.16NA
2205:15Calm3.00 Fog/MistCLR5555 99%30.16NA
2204:55Calm7.00FairCLR5656 99%30.15NA
2204:35Calm7.00FairCLR5656 100%30.15NA
2204:15Calm5.00 Fog/MistCLR5656 99%30.15NA
2203:55Calm4.00 Fog/MistCLR5555 99%30.14NA
2203:35Calm7.00FairCLR5756 99%30.14NA
2203:15Calm5.00 Fog/MistCLR5656 99%30.14NA
2202:55Calm4.00 Fog/MistCLR5757 99%30.13NA
2202:35Calm10.00FairCLR5756 97%30.13NA
2202:15Calm10.00FairCLR5756 99%30.12NA
2201:55Calm4.00 Fog/MistCLR5757 99%30.12NA
2201:35Calm10.00FairCLR5858 99%30.12NA
2201:15Calm10.00FairCLR5958 99%30.12NA
2200:55Calm10.00FairCLR5857 725897%30.12NA
2200:35Calm10.00FairCLR5959 98%30.12NA
2200:15Calm10.00FairCLR5958 98%30.12NA
2123:55Calm10.00FairCLR6059 96%30.12NA
2123:35Calm10.00FairCLR6058 96%30.12NA
2123:15Calm10.00FairCLR6159 94%30.11NA
2122:55Calm10.00FairCLR6159 95%30.11NA
2122:35Calm10.00FairCLR6259 90%30.11NA
2122:15Calm10.00FairCLR6259 89%30.11NA
2121:50Calm10.00ClearSKC5959 100%30.11NA
2120:50Calm10.00ClearSKC6459 83%30.09NA
2118:50NW 710.00Partly CloudySCT0607257 61%30.06NA
2117:50NW 1210.00Partly CloudySCT0607555 50%30.05NA
2116:50NW 1210.00Partly CloudySCT0607557 54%30.04NA
2115:50NW 1210.00Partly CloudySCT0507557 54%30.04NA
2114:50NW 1210.00Partly CloudySCT0507557 54%30.04NA
2113:54NW 1210.00Partly CloudySCT0457557 54%30.05NA
2112:59NW 910.00Partly CloudySCT0457359 61%30.05NA
2111:47W 910.00Partly CloudySCT0387361 65%30.05NA
2110:52NW 910.00A Few CloudsFEW0407259 65%30.04NA
2109:52W 710.00ClearSKC6861 78%30.02NA
2108:50NW 1210.00ClearSKC6461 88%30.01NA
2107:53W 1210.00ClearSKC6361 94%29.99NA
2106:50W 610.00ClearSKC5957 94%29.97NA
2106:35W 310.00FairCLR5857 97%29.96NA
2106:15W 510.00FairCLR5858 97%29.95NA
2105:55W 610.00FairCLR5958 98%29.95NA
2105:35W 610.00FairCLR5958 97%29.93NA
2105:15W 710.00FairCLR6058 96%29.93NA
2104:55W 610.00FairCLR6059 96%29.93NA
2104:35W 610.00FairCLR6059 96%29.93NA
2104:15W 510.00FairCLR6059 96%29.92NA
2103:55W 610.00FairCLR6160 96%29.92NA
2103:35W 610.00FairCLR6160 96%29.92NA
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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