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Alton / St. Louis Regional
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D
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Time
(cst)
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.
0512:53NW 1410.00Partly CloudySCT034191 45%30.56NA
0511:50NW 13 G 2310.00Mostly CloudyBKN034193 49%30.57NA
0510:50N 710.00Partly CloudySCT034191 45%30.57NA
0509:45NW 1410.00Partly CloudyFEW050 SCT20018-2 41%30.55NA
0508:50N 610.00ClearSKC18-2 41%30.54NA
0505:35N 510.00FairCLR160 50%30.44NA
0505:15N 610.00FairCLR160 50%30.45NA
0504:55N 610.00FairCLR161 51%30.45NA
0504:35N 510.00FairCLR171 49%30.44NA
0504:15NE 610.00FairCLR172 54%30.43NA
0503:55Calm10.00FairCLR163 57%30.43NA
0503:35Calm10.00FairCLR163 57%30.39NA
0503:15Calm10.00FairCLR172 52%30.40NA
0502:55Calm10.00FairCLR172 52%30.40NA
0502:35Calm10.00FairCLR182 50%30.41NA
0502:15Calm10.00FairCLR182 50%30.40NA
0501:55NW 310.00FairCLR183 51%30.41NA
0501:35Calm10.00FairCLR193 51%30.41NA
0501:15NW 310.00FairCLR193 50%30.40NA
0500:55N 310.00FairCLR194 50%30.39NA
0500:35NW 510.00FairCLR204 50%30.38NA
0500:15N 510.00FairCLR203 47%30.36NA
0423:55NW 310.00Partly CloudySCT120213 222146%30.39NA
0423:35N 510.00Partly CloudySCT110213 45%30.38NA
0423:15NW 310.00FairCLR213 46%30.39NA
0422:55NW 310.00FairCLR213 46%30.40NA
0422:35N 310.00Partly CloudySCT120212 44%30.36NA
0422:15NW 310.00Partly CloudySCT120212 44%30.39NA
0421:55NW 610.00FairCLR212 42%30.38NA
0421:35N 610.00Partly CloudySCT120211 41%30.37NA
0421:15NW 610.00Partly CloudySCT120210 40%30.39NA
0417:48N 1210.00OvercastOVC09523-0 36%30.30NA
0416:54N 1410.00OvercastOVC09523-2 33%30.28NA
0415:50N 810.00OvercastOVC080213 45%30.25NA
0414:50N 10 G 2110.00OvercastSCT065 OVC080211 42%30.26NA
0413:50NW 10 G 1610.00OvercastSCT055 OVC070211 42%30.24NA
0412:50NW 710.00OvercastBKN034 OVC050193 49%30.24NA
0411:45N 1510.00OvercastOVC055211 42%30.25NA
0410:50NW 1410.00OvercastOVC060215 49%30.24NA
0409:50NW 1610.00OvercastOVC060195 53%30.22NA
0408:50NW 1610.00OvercastOVC060199 63%30.20NA
0407:50N 1610.00OvercastOVC055199 63%30.16NA
0406:50NW 16 G 2510.00OvercastOVC0552314 68%30.12NA
0405:35N 16 G 2110.00OvercastOVC0472819 68%30.06NA
0405:15N 12 G 1810.00OvercastOVC0452918 65%30.05NA
0404:55NW 12 G 2610.00OvercastSCT015 OVC0433019 65%30.04NA
0404:35NW 14 G 2010.00OvercastBKN017 BKN024 OVC0433225 78%30.03NA
0404:15NW 10 G 1610.00OvercastOVC0173226 79%30.02NA
0403:55NW 13 G 2010.00OvercastOVC0173227 81%30.01NA
0403:35NW 1310.00OvercastOVC0193429 83%30.02NA
0403:15NW 810.00OvercastBKN023 OVC0443430 85%29.99NA
0402:55NW 510.00OvercastOVC0463430 87%29.99NA
0402:35NW 37.00OvercastOVC0463431 92%29.98NA
0402:15NW 67.00OvercastSCT038 OVC0463332 94%29.99NA
0401:55NW 57.00 DrizzleOVC0383432 92%29.98NA
0401:35NW 37.00OvercastOVC0363432 93%29.97NA
0401:15NW 57.00OvercastOVC0363432 93%29.98NA
0400:55Calm7.00 Light RainOVC0363432 92%29.97NA
0400:35Calm7.00 Light DrizzleOVC0343432 92%29.96NA
0400:15Calm7.00 RainSCT024 OVC0323432 92%29.93NA
0323:55N 55.00 Light RainSCT024 BKN030 OVC0653533 413592%29.96NA0.020.02
0323:35Calm5.00 Light RainSCT012 BKN024 OVC0303532 89%29.94NA0.01
0323:15N 55.00 RainBKN010 BKN017 OVC0223634 93%29.96NA
0322:55N 64.00 Light RainBKN010 BKN014 OVC0233735 95%29.96NA
0322:35N 57.00 DrizzleSCT010 SCT015 OVC0233735 93%29.93NA
0322:15N 67.00OvercastOVC0203736 94%29.93NA
0321:55NW 57.00OvercastOVC0163836 93%29.93NA
0321:50NW 77.00 Light DrizzleOVC0063937 93%29.92NA
0321:35NW 57.00 Light DrizzleSCT006 OVC0163836 93%29.93NA
0321:15NW 77.00OvercastOVC0063937 94%29.92NA
0320:50NW 77.00 Light DrizzleOVC0063937 93%29.92NA
0319:50NW 67.00OvercastOVC0204137 87%29.88NA
0318:50W 77.00OvercastOVC0203736 93%29.88NA
0317:50W 65.00 Fog/MistOVC0253737 100%29.85NA
0316:50W 76.00 Fog/MistOVC0283939 100%29.82NA
0315:50NW 73.00 Fog/MistOVC0223939 100%29.83NA
0312:50SW 92.00 Fog/MistOVC0094139 93%29.80NA
0311:48S 123.00 Fog/MistOVC0113937 93%29.81NA
0310:47S 146.00 Fog/MistOVC0093936 87%29.79NA
0309:54S 175.00 Fog/MistOVC0093736 93%29.80NA
0308:52S 175.00 Fog/MistOVC0093634 93%29.82NA
0307:48S 154.00 Light Drizzle Fog/MistOVC0133432 93%29.85NA
0306:50S 135.00 Light Drizzle Fog/MistOVC0153228 87%29.89NA
0305:35SE 710.00OvercastOVC0193223 70%29.95NA
0305:15SE 710.00OvercastOVC0193223 69%29.98NA
0304:55SE 910.00OvercastOVC0193222 67%29.98NA
0304:35SE 910.00OvercastOVC0193222 67%29.99NA
0304:15SE 910.00OvercastOVC0213222 65%30.01NA
0303:55SE 910.00OvercastOVC0213221 65%30.00NA
0303:35SE 1010.00OvercastOVC0213221 64%30.01NA
0303:15E 910.00OvercastOVC0233221 64%30.03NA
0302:55SE 710.00OvercastOVC0213221 65%30.05NA
0302:35SE 910.00OvercastOVC0213220 63%30.05NA
0302:15SE 1010.00OvercastOVC0213220 62%30.06NA
0301:55SE 1210.00OvercastOVC0233219 60%30.08NA
0301:35SE 1410.00OvercastBKN023 OVC0303119 61%30.09NA
0301:15SE 1210.00OvercastOVC0283119 61%30.10NA
0300:55SE 1010.00OvercastOVC0283119 61%30.13NA
0300:35SE 1210.00OvercastOVC0323119 62%30.12NA
0300:15SE 1010.00OvercastOVC0323119 61%30.15NA
0223:55SE 810.00OvercastBKN032 OVC0393018 312861%30.19NA
0223:35E 1210.00OvercastOVC0393017 59%30.17NA
0223:15SE 1010.00OvercastOVC0373017 59%30.21NA
0222:55SE 1010.00OvercastOVC0373017 58%30.23NA
0222:35SE 910.00OvercastOVC0423017 59%30.25NA
0222:15SE 1010.00OvercastOVC0423017 59%30.26NA
0221:55SE 910.00OvercastOVC0422917 60%30.27NA
0221:50E 610.00OvercastOVC0483016 55%30.29NA
0221:35E 710.00OvercastOVC0443015 54%30.28NA
0221:15E 810.00OvercastOVC0463016 56%30.27NA
0220:50E 610.00OvercastOVC0483016 55%30.29NA
0219:50E 710.00Mostly CloudyBKN2002816 59%30.31NA
0218:50E 510.00Mostly CloudyBKN2002816 59%30.34NA
0217:50E 710.00Mostly CloudyBKN2003014 51%30.36NA
0216:50E 910.00Mostly CloudyBKN2003214 47%30.38NA
0215:50SE 910.00Mostly CloudyBKN2003414 44%30.41NA
0214:50E 910.00Mostly CloudyBKN2003414 44%30.45NA
D
a
t
e
Time
(cst)
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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