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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)PressurePrecipitation (in.)
AirDwpt6 hour altimeter
(in.)
sea level
(mb)
1 hr 3 hr6 hr
Max.Min.
2515:50NE 610.00FairCLR8250 30.21NA
2514:47E 610.00ClearSKC8450 30.23NA
2513:50NE 710.00ClearSKC8454 30.25NA
2512:50NE 710.00ClearSKC8255 30.27NA
2511:50E 910.00ClearSKC8157 30.28NA
2510:50Vrbl 310.00ClearSKC7761 30.29NA
2509:50Vrbl 38.00ClearSKC7261 30.29NA
2508:50Calm7.00ClearSKC6661 30.29NA
2507:50Calm6.00 Fog/MistSKC6159 30.28NA
2506:50Calm3.00 Shallow Fog Fog/MistFEW2505957 30.27NA
2506:45Calm1.25 Fog/MistVV0075957 30.27NA
2506:25Calm0.50 FogVV0055957 30.27NA
2506:05Calm1.50 Fog/MistVV0075757 30.27NA
2505:45Calm2.50 Fog/MistNA5959 30.27NA
2505:25Calm2.00 Fog/MistNA5959 30.26NA
2505:05Calm1.25 Fog/MistVV0075957 30.26NA
2504:45Calm2.50 Fog/MistNA6159 30.26NA
2504:25Calm4.00 Fog/MistCLR6159 30.26NA
2504:05Calm1.50 Fog/MistVV0076159 30.25NA
2503:45Calm3.00 Fog/MistNA6161 30.25NA
2503:25Calm4.00 Fog/MistCLR6361 30.25NA
2503:05Calm5.00 Fog/MistCLR6361 30.25NA
2502:45Calm7.00FairCLR6461 30.26NA
2502:25Calm7.00FairCLR6461 30.26NA
2502:05Calm7.00FairCLR6461 30.26NA
2501:45Calm7.00FairCLR6461 30.26NA
2501:25Calm10.00FairCLR6663 30.26NA
2501:05Calm10.00FairCLR6663 30.26NA
2500:45N 310.00FairCLR6663 30.26NA
2500:25Calm10.00FairCLR6663 30.26NA
2500:05N 510.00FairCLR6863 30.26NA
2423:45Calm10.00FairCLR6863 30.26NA
2423:25Calm10.00FairCLR6863 30.26NA
2423:05Calm10.00FairCLR6863 30.26NA
2422:45Calm10.00FairCLR6863 30.26NA
2422:25Calm10.00FairCLR6864 30.26NA
2422:05Calm10.00FairCLR6864 30.26NA
2421:52Vrbl 610.00ClearSKC6864 30.26NA
2421:45Calm10.00FairCLR6864 30.26NA
2421:25Calm7.00FairCLR6664 30.26NA
2421:05Calm7.00FairCLR6864 30.26NA
2420:46Vrbl 510.00ClearSKC6864 30.25NA
2420:45Calm7.00FairCLR6864 30.25NA
2420:25Calm7.00FairCLR7066 30.25NA
2420:05Calm10.00FairCLR7066 30.25NA
2419:46Calm10.00ClearSKC7066 30.24NA
2418:48Vrbl 510.00Partly CloudySCT2507568 30.23NA
2417:49Vrbl 610.00Mostly CloudyBKN2508261 30.23NA
2416:50Vrbl 710.00Mostly CloudyFEW040 BKN2508457 30.23NA
2415:48Vrbl 610.00Mostly CloudyFEW030 BKN2508459 30.23NA
2414:55N 610.00Mostly CloudyFEW030 BKN2508255 30.24NA
2412:55NW 610.00Mostly CloudyFEW030 BKN2508161 30.27NA
2411:50NW 710.00Mostly CloudyFEW030 BKN2508166 30.28NA
2409:50NW 77.00Mostly CloudyFEW100 BKN2507064 30.31NA
2408:52Calm6.00 Fog/MistSCT075 BKN2506361 30.31NA
2407:50Calm6.00 Fog/MistBKN075 BKN2505957 30.30NA
2406:50Calm5.00 Fog/MistBKN0605959 30.28NA
2406:45Calm4.00 Fog/MistSCT075 SCT0905959 30.28NA
2406:25Calm3.00 Fog/MistNA5959 30.27NA
2406:05Calm5.00 Fog/MistSCT070 BKN0905957 30.26NA
2405:45Calm3.00 Fog/MistNA5959 30.26NA
2405:25Calm2.50 Fog/MistNA5957 30.26NA
2405:05Calm3.00 Fog/MistNA5957 30.25NA
2404:45Calm4.00 Fog/MistCLR6159 30.25NA
2404:25Calm3.00 Fog/MistNA5959 30.25NA
2404:05Calm4.00 Fog/MistSCT070 BKN0906159 30.24NA
2403:45Calm5.00 Fog/MistSCT070 SCT0806159 30.24NA
2403:25Calm5.00 Fog/MistSCT0806159 30.24NA
2403:05Calm3.00 Fog/MistNA6159 30.23NA
2402:45Calm3.00 Fog/MistNA6159 30.24NA
2402:25Calm4.00 Fog/MistCLR6159 30.25NA
2402:05Calm4.00 Fog/MistCLR6159 30.25NA
2401:45Calm3.00 Fog/MistNA6161 30.25NA
2401:25Calm5.00 Fog/MistCLR6361 30.25NA
2401:05E 35.00 Fog/MistCLR6363 30.25NA
2400:45E 35.00 Fog/MistCLR6361 30.25NA
2400:25Calm3.00 Fog/MistNA6361 30.25NA
2400:05Calm2.50 Fog/MistNA6363 30.25NA
2323:45Calm5.00 Fog/MistCLR6363 30.26NA
2323:25Calm3.00 Fog/MistNA6363 30.26NA
2323:05Calm4.00 Fog/MistSCT1006463 30.26NA
2322:45Calm4.00 Fog/MistSCT1006463 30.26NA
2322:25Calm3.00 Fog/MistNA6664 30.26NA
2322:05Calm4.00 Fog/MistCLR6463 30.25NA
2321:47Vrbl 37.00ClearSKC6664 30.25NA
2321:45Calm5.00 Fog/MistCLR6664 30.25NA
2321:25Calm5.00 Fog/MistCLR6664 30.25NA
2321:05Calm5.00 Fog/MistCLR6664 30.24NA
2320:47Vrbl 57.00ClearSKC6864 30.24NA
2320:45Calm7.00FairCLR6864 30.24NA
2320:25Calm7.00FairCLR6864 30.23NA
2320:05Calm7.00FairCLR7064 30.23NA
2319:49Vrbl 67.00ClearSKC7064 30.22NA
2318:46SE 77.00A Few CloudsFEW2507564 30.21NA
2317:54SE 810.00A Few CloudsFEW0608161 30.21NA
2316:55SE 910.00A Few CloudsFEW0558261 30.21NA
2315:46SE 97.00Partly CloudySCT0558457 30.22NA
2314:50SE 87.00A Few CloudsFEW0808459 30.23NA
2313:50SE 910.00ClearSKC8257 30.26NA
2312:55E 910.00ClearSKC8163 30.28NA
2311:50E 610.00ClearSKC7761 30.30NA
2310:52E 710.00ClearSKC7361 30.31NA
2309:52E 78.00ClearSKC7061 30.32NA
2308:50E 66.00Clear with HazeSKC6459 30.32NA
2307:50Calm5.00 Fog/MistSKC5957 30.31NA
2306:50Calm5.00 Fog/MistSKC5755 30.29NA
2306:45Calm5.00 Fog/MistCLR5755 30.29NA
2306:25Calm5.00 Fog/MistCLR5757 30.29NA
2306:05Calm5.00 Fog/MistCLR5757 30.29NA
2305:45Calm4.00 Fog/MistCLR5755 30.29NA
2305:25Calm3.00 Fog/MistNA5755 30.28NA
2305:05Calm3.00 Fog/MistNA5757 30.28NA
2304:45Calm4.00 Fog/MistCLR5957 30.27NA
2304:25Calm4.00 Fog/MistCLR5957 30.27NA
2304:05Calm3.00 Fog/MistNA5757 30.27NA
2303:45Calm5.00 Fog/MistCLR5957 30.27NA
2303:25Calm5.00 Fog/MistCLR5755 30.26NA
2303:05Calm5.00 Fog/MistCLR5957 30.27NA
2302:45Calm5.00 Fog/MistCLR5957 30.27NA
2302:25Calm7.00FairCLR6157 30.27NA
2302:05Calm7.00FairCLR6159 30.27NA
2301:45Calm7.00FairCLR6159 30.27NA
2301:25E 37.00FairCLR6159 30.27NA
2301:05Calm7.00FairCLR6159 30.27NA
2300:45Calm7.00FairCLR6359 30.27NA
2300:25Calm10.00FairCLR6359 30.27NA
2300:05E 37.00FairCLR6359 30.27NA
2223:45Calm7.00FairCLR6359 30.27NA
2223:25E 37.00FairCLR6361 30.27NA
2223:05E 35.00 Fog/MistCLR6361 30.27NA
2222:45Calm7.00FairCLR6361 30.27NA
2222:25E 35.00 Fog/MistCLR6361 30.27NA
2222:05Calm7.00FairCLR6461 30.27NA
2221:49Vrbl 510.00ClearSKC6463 30.27NA
2221:45Calm7.00FairCLR6463 30.27NA
2221:25E 37.00FairCLR6663 30.26NA
2221:05E 37.00FairCLR6663 30.27NA
2220:49Vrbl 610.00ClearSKC6463 30.26NA
2220:45E 57.00FairCLR6663 30.26NA
2220:25Calm7.00FairCLR6663 30.26NA
2220:05Calm10.00FairCLR6863 30.26NA
2219:52E 710.00ClearSKC6863 30.25NA
2218:50E 910.00Partly CloudySCT2507563 30.25NA
2217:48E 910.00Mostly CloudyBKN2507961 30.25NA
2216:48E 1210.00Partly CloudySCT2508157 30.24NA
D
a
t
e
Time
(cdt)
Wind
(mph)
Vis.
(mi.)
WeatherSky Cond. AirDwptMax.Min.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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