Weather archive in Alton (airport), METAR
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Weather statistics
| Date / Local time | T | Po | P | U | DD | Ff | ff10 | WW | W'W' | c | VV | Td | |
| 2026 August 18, Tuesday | 17:50 | 29 84 | 747.8 29.44 996.98 996.98 | 762.0 30 1015.92 1015.92 | 62 | Wind blowing from the west-northwest | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | No clouds No clouds No clouds | 16.0 9.9 | 21 70 | |||
16:50 | 29 84 | 747.8 29.44 996.98 996.98 | 762.0 30 1015.92 1015.92 | 55 | Variable wind direction | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | No clouds No clouds No clouds | 16.0 9.9 | 19 66 | ||||
15:50 | 29 84 | 748.1 29.45 997.38 997.38 | 762.3 30.01 1016.32 1016.32 | 55 | Wind blowing from the south-southwest | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | No clouds No clouds No clouds | 16.0 9.9 | 19 66 | ||||
14:50 | 29 84 | 748.1 29.45 997.38 997.38 | 762.3 30.01 1016.32 1016.32 | 55 | Wind blowing from the west | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | No clouds No clouds No clouds | 16.0 9.9 | 19 66 | ||||
13:50 | 29 84 | 748.6 29.47 998.05 998.05 | 762.8 30.03 1016.98 1016.98 | 55 | Wind blowing from the south | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | No clouds No clouds No clouds | 16.0 9.9 | 19 66 | ||||
12:50 | 29 84 | 749.3 29.5 998.98 998.98 | 763.5 30.06 1017.92 1017.92 | 55 | Wind blowing from the south-west | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | No clouds No clouds No clouds | 16.0 9.9 | 19 66 | ||||
11:50 | 28 82 | 749.6 29.51 999.38 999.38 | 763.8 30.07 1018.32 1018.32 | 55 | Variable wind direction | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | No clouds No clouds No clouds | 16.0 9.9 | 18 64 | ||||
10:50 | 27 81 | 749.7 29.52 999.52 999.52 | 764.0 30.08 1018.58 1018.58 | 58 | Wind blowing from the south-west | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | Scattered clouds (40-50%) 960 m3149 feet Scattered clouds (4/10-5/10) 960 m3149 feet Scattered clouds (3-4 oktas) 960 m3149 feet | 16.0 9.9 | 18 64 | ||||
09:50 | 25 77 | 749.4 29.5 999.12 999.12 | 763.8 30.07 1018.32 1018.32 | 69 | Wind blowing from the south | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | No clouds No clouds No clouds | 16.0 9.9 | 19 66 | ||||
08:50 | 22 72 | 749.3 29.5 998.98 998.98 | 763.8 30.07 1018.32 1018.32 | 88 | Calm, no wind | Calm | No clouds No clouds No clouds | 16.0 9.9 | 20 68 | ||||
07:50 | 21 70 | 749.2 29.5 998.85 998.85 | 763.8 30.07 1018.32 1018.32 | 88 | Calm, no wind | Calm | No clouds No clouds No clouds | 16.0 9.9 | 19 66 | ||||
06:50 | 18 64 | 748.8 29.48 998.32 998.32 | 763.5 30.06 1017.92 1017.92 | 100 | Calm, no wind | Calm | No clouds No clouds No clouds | 11.2 7.0 | 18 64 | ||||
06:35 | 18 64 | 749.1 29.49 998.72 998.72 | 763.8 30.07 1018.32 1018.32 | 94 | Calm, no wind | Calm | Mist | No clouds No clouds No clouds | 4.8 3.0 | 17 63 | |||
06:15 | 763.8 30.07 1018.32 1018.32 | Calm, no wind | Calm | Mist | Vertical visibility 210 m689 feet Vertical visibility 210 m689 feet Vertical visibility 210 m689 feet | 2.4 1.5 | |||||||
05:55 | 17 63 | 749.0 29.49 998.58 998.58 | 763.8 30.07 1018.32 1018.32 | 100 | Calm, no wind | Calm | Mist | No clouds No clouds No clouds | 6.4 4.0 | 17 63 | |||
05:35 | 18 64 | 749.1 29.49 998.72 998.72 | 763.8 30.07 1018.32 1018.32 | 94 | Calm, no wind | Calm | Mist | No clouds No clouds No clouds | 4.0 2.5 | 17 63 | |||
05:15 | 18 64 | 749.3 29.5 998.98 998.98 | 764.0 30.08 1018.58 1018.58 | 94 | Calm, no wind | Calm | Mist | No clouds No clouds No clouds | 8.0 5.0 | 17 63 | |||
04:55 | 18 64 | 749.1 29.49 998.72 998.72 | 763.8 30.07 1018.32 1018.32 | 94 | Calm, no wind | Calm | Mist | Vertical visibility 210 m689 feet Vertical visibility 210 m689 feet Vertical visibility 210 m689 feet | 1.6 1.0 | 17 63 | |||
04:35 | 18 64 | 749.3 29.5 998.98 998.98 | 764.0 30.08 1018.58 1018.58 | 100 | Calm, no wind | Calm | Mist | No clouds No clouds No clouds | 8.0 5.0 | 18 64 | |||
04:15 | 764.0 30.08 1018.58 1018.58 | Calm, no wind | Calm | Mist | Vertical visibility 210 m689 feet Vertical visibility 210 m689 feet Vertical visibility 210 m689 feet | 2.4 1.5 | |||||||
03:55 | 18 64 | 749.1 29.49 998.72 998.72 | 763.8 30.07 1018.32 1018.32 | 100 | Calm, no wind | Calm | Mist | No clouds No clouds No clouds | 8.0 5.0 | 18 64 | |||
03:35 | 18 64 | 749.1 29.49 998.72 998.72 | 763.8 30.07 1018.32 1018.32 | 100 | Calm, no wind | Calm | No clouds No clouds No clouds | 11.2 7.0 | 18 64 | ||||
03:15 | 18 64 | 749.1 29.49 998.72 998.72 | 763.8 30.07 1018.32 1018.32 | 100 | Calm, no wind | Calm | Fog | Vertical visibility 150 m492 feet Vertical visibility 150 m492 feet Vertical visibility 150 m492 feet | 0.8 0.5 | 18 64 | |||
02:55 | 19 66 | 748.8 29.48 998.32 998.32 | 763.5 30.06 1017.92 1017.92 | 94 | Calm, no wind | Calm | Mist | Vertical visibility 210 m689 feet Vertical visibility 210 m689 feet Vertical visibility 210 m689 feet | 2.0 1.2 | 18 64 | |||
02:35 | 19 66 | 748.8 29.48 998.32 998.32 | 763.5 30.06 1017.92 1017.92 | 94 | Calm, no wind | Calm | No clouds No clouds No clouds | 11.2 7.0 | 18 64 | ||||
02:15 | 19 66 | 748.8 29.48 998.32 998.32 | 763.5 30.06 1017.92 1017.92 | 94 | Calm, no wind | Calm | No clouds No clouds No clouds | 11.2 7.0 | 18 64 | ||||
01:55 | 19 66 | 748.8 29.48 998.32 998.32 | 763.5 30.06 1017.92 1017.92 | 100 | Calm, no wind | Calm | Mist | Vertical visibility 210 m689 feet Vertical visibility 210 m689 feet Vertical visibility 210 m689 feet | 1.6 1.0 | 19 66 | |||
01:35 | 19 66 | 748.8 29.48 998.32 998.32 | 763.5 30.06 1017.92 1017.92 | 100 | Calm, no wind | Calm | Mist | No clouds No clouds No clouds | 8.0 5.0 | 19 66 | |||
01:15 | 763.8 30.07 1018.32 1018.32 | Calm, no wind | Calm | No clouds No clouds No clouds | 11.2 7.0 | ||||||||
00:55 | 20 68 | 749.4 29.5 999.12 999.12 | 764.0 30.08 1018.58 1018.58 | 94 | Calm, no wind | Calm | No clouds No clouds No clouds | 16.0 9.9 | 19 66 | ||||
00:35 | 20 68 | 749.2 29.5 998.85 998.85 | 763.8 30.07 1018.32 1018.32 | 94 | Calm, no wind | Calm | No clouds No clouds No clouds | 16.0 9.9 | 19 66 | ||||
00:15 | 20 68 | 749.4 29.5 999.12 999.12 | 764.0 30.08 1018.58 1018.58 | 94 | Calm, no wind | Calm | No clouds No clouds No clouds | 16.0 9.9 | 19 66 | ||||
| August 17, Monday | 23:55 | 20 68 | 749.4 29.5 999.12 999.12 | 764.0 30.08 1018.58 1018.58 | 94 | Calm, no wind | Calm | No clouds No clouds No clouds | 16.0 9.9 | 19 66 | |||
23:35 | 764.0 30.08 1018.58 1018.58 | Calm, no wind | Calm | No clouds No clouds No clouds | 16.0 9.9 | ||||||||
23:15 | 763.8 30.07 1018.32 1018.32 | Calm, no wind | Calm | No clouds No clouds No clouds | 16.0 9.9 | ||||||||
22:55 | 763.8 30.07 1018.32 1018.32 | Calm, no wind | Calm | No clouds No clouds No clouds | 16.0 9.9 | ||||||||
22:35 | 21 70 | 748.9 29.48 998.45 998.45 | 763.5 30.06 1017.92 1017.92 | 94 | Calm, no wind | Calm | No clouds No clouds No clouds | 16.0 9.9 | 20 68 | ||||
22:15 | 21 70 | 748.9 29.48 998.45 998.45 | 763.5 30.06 1017.92 1017.92 | 94 | Calm, no wind | Calm | No clouds No clouds No clouds | 16.0 9.9 | 20 68 | ||||
21:50 | 21 70 | 749.2 29.5 998.85 998.85 | 763.8 30.07 1018.32 1018.32 | 94 | Calm, no wind | Calm | No clouds No clouds No clouds | 16.0 9.9 | 20 68 | ||||
20:50 | 22 72 | 748.5 29.47 997.92 997.92 | 763.0 30.04 1017.25 1017.25 | 88 | Wind blowing from the north-northwest | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | No clouds No clouds No clouds | 16.0 9.9 | 20 68 | ||||
19:50 | 24 75 | 748.1 29.45 997.38 997.38 | 762.5 30.02 1016.58 1016.58 | 74 | Wind blowing from the north-northwest | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | No clouds No clouds No clouds | 16.0 9.9 | 19 66 | ||||
18:50 | 26 79 | 748.2 29.46 997.52 997.52 | 762.5 30.02 1016.58 1016.58 | 61 | Wind blowing from the north | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | No clouds No clouds No clouds | 16.0 9.9 | 18 64 | ||||
17:50 | 28 82 | 748.8 29.48 998.32 998.32 | 763.0 30.04 1017.25 1017.25 | 55 | Wind blowing from the north-northwest | Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft) | Scattered clouds (40-50%) 1350 m4428 feet Scattered clouds (4/10-5/10) 1350 m4428 feet Scattered clouds (3-4 oktas) 1350 m4428 feet | 16.0 9.9 | 18 64 | ||||