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Alton / St. Louis Regional
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WeatherSky Cond. Temperature (ºF)Relative
PressurePrecipitation (in.)
AirDwpt6 hour altimeter
sea level
1 hr 3 hr6 hr
1006:35W 710.00FairCLR125 72%30.16NA
1006:15W 810.00FairCLR125 72%30.16NA
1005:55W 810.00FairCLR125 171271%30.16NA
1005:35W 910.00FairCLR135 70%30.15NA
1005:15NW 1010.00FairCLR135 70%30.16NA
1004:55W 1010.00FairCLR136 72%30.16NA
1004:35NW 1010.00FairCLR146 71%30.17NA
1004:15NW 1010.00FairCLR146 71%30.16NA
1003:55NW 1210.00FairCLR146 69%30.15NA
1003:35NW 1010.00FairCLR146 69%30.15NA
1003:15NW 1510.00FairCLR146 70%30.15NA
1002:55NW 13 G 2010.00FairCLR156 68%30.15NA
1002:35W 14 G 2010.00Partly CloudySCT029156 68%30.15NA
1002:15NW 13 G 1610.00Mostly CloudyBKN029156 69%30.15NA
1001:55W 1310.00Mostly CloudyBKN029156 69%30.15NA
1001:35NW 12 G 1810.00OvercastOVC029156 66%30.14NA
1001:15NW 910.00 Light SnowOVC027167 69%30.14NA
1000:55NW 12 G 207.00 Light SnowOVC027168 70%30.14NA
1000:35NW 13 G 1710.00 Light SnowOVC029178 70%30.14NA
1000:15NW 10 G 2210.00OvercastOVC029177 66%30.14NA
0923:55NW 12 G 2010.00Partly CloudySCT029166 201666%30.13NA
0923:35NW 13 G 2410.00FairCLR167 66%30.13NA
0923:15NW 14 G 2310.00Partly CloudySCT034177 64%30.13NA
0922:55NW 10 G 2010.00Mostly CloudyBKN032188 64%30.12NA
0922:35NW 10 G 1610.00Mostly CloudyBKN032198 65%30.13NA
0922:15NW 10 G 1610.00Partly CloudySCT032198 65%30.12NA
0921:50NW 13 G 2010.00ClearSKC199 63%30.11NA
0920:50NW 13 G 2010.00ClearSKC199 63%30.11NA
0919:50NW 710.00ClearSKC187 62%30.10NA
0918:50W 810.00Partly CloudySCT080189 68%30.09NA
0917:50W 910.00Partly CloudySCT0851910 68%30.07NA
0916:50NW 2510.00Mostly Cloudy and BreezyBKN0392112 68%30.06NA
0915:50NW 1810.00OvercastSCT029 OVC0372112 68%30.05NA
0914:50NW 2110.00Overcast and BreezyBKN027 OVC0341910 68%30.04NA
0913:50NW 218.00 Light Snow and BreezySCT028 OVC0301910 68%30.02NA
0912:50NW 168.00 Light SnowOVC0281910 68%30.01NA
0911:45NW 17 G 266.00 Light SnowOVC0241910 68%30.01NA
0910:51NW 18 G 284.00 Light SnowOVC025189 68%30.01NA
0909:50NW 17 G 265.00 Light SnowBKN024 OVC1501810 73%29.99NA
0908:45NW 172.00 Light SnowOVC0171812 79%29.98NA
0907:52NW 18 G 284.00 Light SnowOVC021189 68%29.96NA
0906:50NW 16 G 234.00 Light SnowOVC0221812 79%29.94NA
0906:35NW 1010.00 Light SnowSCT025 OVC0351811 73%29.93NA
0906:15NW 9 G 1810.00OvercastSCT025 OVC0371811 72%29.93NA
0905:55NW 9 G 177.00 Light SnowOVC0391911 211873%29.92NA
0905:35NW 910.00 Light SnowBKN039 OVC1001911 72%29.91NA
0905:15NW 13 G 2310.00OvercastSCT021 BKN039 OVC0951811 72%29.91NA
0904:55NW 12 G 185.00 Light SnowSCT019 BKN030 OVC0371813 78%29.90NA
0904:35NW 14 G 224.00 Light SnowSCT020 OVC0301914 83%29.90NA
0904:15W 142.50 Light SnowSCT014 BKN025 OVC0361915 86%29.90NA
0903:55NW 15 G 265.00 Light SnowSCT017 BKN030 OVC0371913 78%29.89NA
0903:35W 173.00 Light SnowSCT016 OVC0221915 84%29.89NA
0903:15W 142.50 Light SnowSCT018 BKN025 OVC0321915 84%29.89NA
0902:55W 15 G 204.00 Light SnowSCT021 BKN032 OVC0501914 82%29.89NA
0902:35W 135.00 Light SnowSCT028 BKN039 OVC0601815 86%29.90NA
0902:15W 125.00 Light SnowSCT021 SCT027 OVC0421914 83%29.90NA
0901:55NW 14 G 225.00 Light SnowSCT023 BKN028 OVC0371914 81%29.91NA
0901:35W 20 G 257.00 Light SnowSCT020 BKN037 OVC0431914 79%29.91NA
0901:15W 21 G 285.00 Light Snow and BreezySCT020 SCT029 OVC0431914 79%29.91NA
0900:55W 20 G 257.00 Light SnowSCT021 BKN029 OVC0432013 74%29.91NA
0900:35W 13 G 1710.00 Light SnowSCT023 OVC0272015 78%29.91NA
0900:15NW 15 G 2110.00 Light SnowOVC0252114 77%29.91NA
0823:55W 16 G 2210.00OvercastSCT021 BKN029 OVC0402115 222177%29.91NA
0823:35W 1010.00 Light SnowSCT024 BKN028 OVC0402115 79%29.91NA
0823:15W 1610.00OvercastSCT022 OVC0272115 77%29.92NA
0822:55W 15 G 2010.00 Light SnowOVC0272115 77%29.92NA
0822:35W 16 G 2310.00OvercastBKN029 OVC0372114 73%29.92NA
0822:15W 16 G 2210.00OvercastOVC0312113 71%29.93NA
0821:50W 15 G 264.00 Light SnowOVC0242116 80%29.95NA
0820:50W 15 G 264.00 Light SnowOVC0242116 80%29.95NA
0819:50NW 16 G 2610.00OvercastOVC0282114 74%29.95NA
0818:50NW 17 G 2110.00 Light SnowOVC0272116 80%29.95NA
0817:50W 15 G 214.00 Light SnowOVC0262118 86%29.95NA
0816:50NW 16 G 2410.00 Light SnowOVC0452314 68%29.93NA
0815:50NW 212.50 Light Snow and BreezyBKN022 OVC0272316 74%29.91NA
0814:50NW 233.00 Light Snow and BreezySCT028 OVC0382316 74%29.90NA
0813:50W 238.00 Light Snow and BreezyOVC0292314 68%29.88NA
0812:45W 255.00 Light Snow and BreezyBKN017 OVC0302518 74%29.86NA
0811:45NW 15 G 243.00 Light SnowSCT021 OVC0272519 80%29.87NA
0809:45W 18 G 261.75 Light SnowSCT009 OVC0142723 86%29.85NA
0808:45W 17 G 241.50 Light SnowOVC0152723 86%29.83NA
0807:50W 22 G 3110.00Overcast and BreezyOVC0213023 75%29.80NA
0806:50W 17 G 3010.00OvercastSCT023 OVC0313225 75%29.78NA
0806:35W 16 G 2210.00OvercastOVC0333223 69%29.78NA
0806:15W 18 G 2610.00OvercastOVC0353322 65%29.77NA
0805:55W 14 G 2210.00OvercastOVC0353423 383465%29.77NA
0805:35W 17 G 2210.00OvercastOVC0373423 65%29.77NA
0805:15W 1610.00OvercastSCT026 OVC0363426 71%29.77NA
0804:55W 18 G 2610.00OvercastOVC0263526 71%29.77NA
0804:35W 20 G 2510.00OvercastBKN026 BKN041 OVC0503529 77%29.77NA
0804:15W 1510.00OvercastSCT024 BKN050 OVC0553530 81%29.77NA
0803:55W 14 G 2210.00OvercastBKN024 OVC0503530 80%29.77NA
0803:35W 1210.00OvercastSCT019 BKN024 OVC0503531 85%29.78NA
0803:15W 1510.00OvercastBKN020 BKN030 OVC0503531 87%29.79NA
0802:55W 1510.00OvercastOVC0233531 86%29.79NA
0802:35W 1010.00OvercastBKN023 OVC0333531 88%29.80NA
0802:15W 1210.00OvercastSCT015 SCT026 OVC0333432 91%29.80NA
0801:55W 167.00 RainSCT015 BKN020 OVC0343532 88%29.81NA
0801:35W 17 G 2410.00OvercastSCT027 BKN035 OVC0903729 74%29.81NA
0801:15W 1810.00OvercastSCT070 BKN090 OVC1203728 72%29.80NA
0800:55W 1210.00OvercastSCT050 SCT090 OVC1103729 75%29.81NA
0800:35W 1410.00OvercastSCT049 BKN070 OVC0903730 76%29.82NA
0800:15W 15 G 1810.00OvercastSCT060 OVC1003731 77%29.83NA
0723:55W 910.00OvercastSCT070 SCT080 OVC1003631 463283%29.83NA
0723:35W 610.00OvercastSCT049 BKN060 OVC0953631 81%29.84NA
0723:15W 810.00Mostly CloudyBKN060 BKN070 BKN1103631 80%29.85NA
0722:55W 1010.00Mostly CloudySCT032 SCT045 BKN0703731 79%29.86NA
0722:35W 1610.00 DrizzleSCT048 BKN060 OVC0753731 79%29.86NA
0722:15SW 1210.00Mostly CloudySCT060 SCT075 BKN1003430 84%29.86NA
0721:50Calm10.00ClearSKC3228 87%29.86NA
0720:50NW 510.00Partly CloudySCT075 SCT1103630 81%29.90NA
0719:45W 2310.00Overcast and BreezySCT047 BKN065 OVC1104332 66%29.90NA
0718:50SW 710.00OvercastSCT050 BKN065 OVC0854532 61%29.88NA
0717:45SW 710.00OvercastOVC1104532 61%29.90NA
0716:45W 1410.00Partly CloudySCT2004630 53%29.90NA
0715:45W 15 G 2210.00Partly CloudySCT1105030 47%29.90NA
0714:45W 2110.00Mostly Cloudy and BreezyBKN1104830 50%29.89NA
0713:45SW 1810.00OvercastOVC1004830 50%29.89NA
0712:45W 20 G 2310.00Mostly CloudyBKN2005030 47%29.91NA
0711:47SW 14 G 2110.00Mostly CloudyBKN2005030 47%29.93NA
0710:48W 17 G 2810.00Mostly CloudyBKN2005028 43%29.95NA
0709:55SW 14 G 2510.00Mostly CloudyBKN2004630 53%29.96NA
0708:56S 1410.00Mostly CloudyBKN2004328 57%29.99NA
0707:52S 1210.00Partly CloudySCT1503727 65%30.01NA
0706:50SW 1210.00NANA3425 70%30.03NA
WeatherSky Cond. AirDwptMax.Min.Relative
sea level
1 hr3 hr6 hr
6 hour
Temperature (ºF)PressurePrecipitation (in.)

National Weather Service
Southern Region Headquarters
Fort Worth, Texas
Last Modified: June 14, 2005
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