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Alton / St. Louis Regional
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D
a
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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.
3120:50E 610.00Partly CloudySCT1207264 78%29.92NA
3119:50E 610.00Partly CloudySCT0607564 69%29.91NA
3118:50NE 610.00Partly CloudySCT1207966 65%29.88NA
3117:50E 610.00Partly CloudySCT1208164 58%29.88NA
3116:50S 910.00Mostly CloudySCT044 BKN1208266 58%29.91NA
3114:50Calm10.00Partly CloudySCT1008164 58%29.94NA
3113:50Calm10.00Mostly CloudyBKN1007764 65%29.95NA
3112:50SE 910.00OvercastSCT065 OVC1007364 74%29.98NA
3111:47N 910.00OvercastFEW018 BKN080 OVC1506863 83%29.99NA
3110:49NE 710.00OvercastBKN060 OVC1207064 83%29.99NA
3109:50N 710.00OvercastFEW050 BKN110 OVC2006863 83%29.99NA
3108:50NE 810.00OvercastSCT036 BKN050 OVC1506664 94%30.01NA
3107:50SW 910.00 ThunderstormBKN050 OVC1206863 83%30.01NA
3106:50Calm10.00OvercastBKN065 OVC1506661 83%29.99NA
3106:35Calm10.00Partly CloudySCT0806662 84%29.98NA
3106:15Calm10.00Mostly CloudySCT070 BKN0806662 89%29.98NA
3105:55Calm10.00Mostly CloudyBKN070 BKN0806562 90%29.98NA
3105:35Calm10.00Partly CloudySCT0706562 89%29.98NA
3105:15Calm10.00Mostly CloudyBKN0706562 92%29.98NA
3104:55Calm10.00FairCLR6562 90%29.98NA
3104:35Calm10.00Partly CloudySCT1206562 90%29.98NA
3104:15Calm10.00Partly CloudySCT1206562 89%29.98NA
3103:55Calm10.00Mostly CloudyBKN1106562 88%29.98NA
3103:35Calm10.00Mostly CloudyBKN1106660 82%29.98NA
3103:15Calm10.00Partly CloudySCT1106760 80%29.98NA
3102:55Calm10.00Partly CloudySCT1206760 80%29.98NA
3102:35Calm10.00Partly CloudySCT1206761 81%29.98NA
3102:15Calm10.00FairCLR6761 80%29.98NA
3101:55Calm10.00FairCLR6662 86%29.98NA
3101:35Calm10.00FairCLR6761 80%29.98NA
3101:15Calm10.00FairCLR6761 81%29.98NA
3100:55Calm10.00FairCLR6961 746774%29.98NA
3100:35W 310.00FairCLR6862 81%29.98NA
3100:15W 310.00FairCLR6761 79%29.98NA
3023:55W 610.00FairCLR6761 80%29.98NA
3023:35W 610.00FairCLR7061 74%29.98NA
3023:15W 510.00FairCLR6862 80%29.99NA
3022:55Calm10.00FairCLR6862 81%29.98NA
3022:35Calm10.00FairCLR6862 81%29.98NA
3022:15Calm10.00FairCLR6962 77%29.98NA
3021:50SW 610.00Mostly CloudyBKN1207059 69%29.98NA
3020:50SW 610.00Mostly CloudyBKN1207059 69%29.98NA
3019:50N 610.00OvercastOVC0707259 65%30.01NA
3018:50N 610.00OvercastOVC0707561 61%30.01NA
3017:50S 610.00Mostly CloudyBKN1208163 54%29.98NA
3016:50SW 610.00Mostly CloudyBKN1208261 48%29.98NA
3015:50Calm10.00Mostly CloudyBKN0658461 45%29.99NA
3014:50Calm10.00Partly CloudySCT0758459 43%30.01NA
3013:50Calm10.00Partly CloudySCT0908657 38%30.03NA
3012:50Calm10.00Mostly CloudyBKN0608259 45%30.04NA
3011:47W 710.00Mostly CloudySCT035 BKN2508461 45%30.06NA
3010:53W 810.00Partly CloudySCT2508163 54%30.07NA
3009:55W 710.00Mostly CloudyFEW050 BKN2507966 65%30.08NA
3008:47W 710.00Partly CloudyFEW050 SCT2507564 69%30.09NA
3007:55SW 810.00Partly CloudyFEW050 SCT2507264 78%30.08NA
3006:50Calm10.00Partly CloudyFEW060 SCT2506463 94%30.07NA
3006:35Calm10.00FairCLR6362 97%30.07NA
3006:15Calm10.00FairCLR6160 98%30.07NA
3005:55Calm1.25 Fog/MistVV0076160 98%30.06NA
3005:35Calm10.00FairCLR6161 99%30.06NA
3005:15Calm10.00FairCLR6060 97%30.06NA
3004:55Calm10.00FairCLR6261 98%30.05NA
3004:35Calm10.00FairCLR6161 98%30.05NA
3004:15Calm10.00FairCLR6160 97%30.04NA
3003:55Calm10.00FairCLR6160 97%30.04NA
3003:35Calm10.00FairCLR6362 97%30.04NA
3003:15Calm10.00FairCLR6462 95%30.05NA
3002:55Calm10.00FairCLR6361 93%30.05NA
3002:35Calm10.00FairCLR6361 93%30.05NA
3002:15Calm10.00FairCLR6562 90%30.06NA
3001:55Calm10.00FairCLR6562 88%30.05NA
3001:35Calm10.00FairCLR6662 87%30.05NA
3001:15Calm10.00FairCLR6562 89%30.04NA
3000:55Calm10.00FairCLR6562 826488%30.05NA
3000:35Calm10.00FairCLR6461 92%30.05NA
3000:15Calm10.00FairCLR6562 89%30.05NA
2923:55Calm10.00FairCLR6662 85%30.05NA
2923:35Calm10.00FairCLR6662 86%30.05NA
2923:15Calm10.00FairCLR6762 83%30.06NA
2922:55Calm10.00FairCLR6861 79%30.06NA
2922:35Calm10.00FairCLR6761 81%30.06NA
2922:15Calm10.00FairCLR7062 75%30.06NA
2921:50Calm10.00ClearSKC7261 69%30.06NA
2920:50NW 710.00ClearSKC7261 69%30.06NA
2919:50NW 710.00Partly CloudySCT2007759 54%30.05NA
2918:50NW 1210.00Partly CloudySCT0658255 40%30.04NA
2917:50NW 1210.00Partly CloudySCT0658455 37%30.04NA
2916:48NW 910.00Partly CloudySCT065 SCT0808455 37%30.06NA
2915:54W 910.00A Few CloudsFEW0908455 37%30.07NA
2914:50W 1210.00Partly CloudySCT0908257 42%30.09NA
2913:52W 910.00Partly CloudySCT0558459 43%30.10NA
2912:50NW 810.00Partly CloudySCT0508159 48%30.11NA
2911:50W 710.00Partly CloudySCT0458159 48%30.12NA
2910:55W 810.00A Few CloudsFEW0257963 58%30.10NA
2909:53W 610.00ClearSKC7761 57%30.10NA
2908:59W 810.00ClearSKC7364 74%30.10NA
2907:59SW 510.00ClearSKC7264 78%30.09NA
2906:47Calm10.00ClearSKC6463 94%30.07NA
2906:35Calm10.00FairCLR6361 94%30.07NA
2906:15Calm7.00FairCLR6261 97%30.07NA
2905:55Calm10.00FairCLR6261 97%30.06NA
2905:35Calm10.00FairCLR6260 94%30.05NA
2905:15Calm10.00FairCLR6260 93%30.05NA
2904:55Calm10.00FairCLR6259 92%30.04NA
2904:35Calm10.00FairCLR6460 88%30.03NA
2904:15Calm10.00FairCLR6461 91%30.03NA
2903:55Calm10.00Partly CloudySCT0606560 86%30.03NA
2903:35Calm10.00Mostly CloudyBKN0606461 90%30.03NA
2903:15Calm10.00Partly CloudySCT0606461 89%30.03NA
2902:55Calm10.00Partly CloudySCT0506561 89%30.03NA
2902:35Calm10.00Partly CloudySCT0606561 87%30.02NA
2902:15Calm10.00Mostly CloudyBKN0606561 88%30.02NA
2901:55Calm10.00Partly CloudySCT0606760 79%30.03NA
2901:35Calm10.00FairCLR6760 78%30.02NA
2901:15Calm10.00FairCLR6761 81%30.03NA
2900:55Calm10.00FairCLR6861 796879%30.02NA
2900:35S 710.00FairCLR6962 78%30.02NA
2900:15W 810.00FairCLR6964 83%30.00NA
2823:55W 910.00FairCLR7166 84%29.98NA
2823:35Calm10.00FairCLR7266 82%29.98NA
2823:15SW 710.00FairCLR7366 78%29.98NA
2822:55S 610.00FairCLR7366 79%29.98NA
2822:35S 910.00FairCLR7366 79%29.99NA
2822:15S 810.00FairCLR7466 77%29.99NA
2821:45S 1810.00ClearSKC7366 78%29.99NA
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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