20 July 2026 Observation History, [ALN] ALTON/ST LOUIS R, timezone: America/Chicago
| Time | Wind (mph) |
Vis. (mi.) |
Sky Cond. (100s ft) |
Present Wx | Temperature (ºF) | Relative Humidity |
Pressure | Snow Depth (in) |
Precipitation (in.) | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Air | Dwpt | Feels Like | 6 hour | altimeter (in.) |
sea level (mb) |
1 hr | 3 hr | 6 hr | ||||||||
| Max. | Min. | |||||||||||||||
| 12:15 AM | NE 3 | 7 | SCT045 | 74 | 69 | 74 | 84 | 29.96 | 0.00 | M | M | |||||
| KALN 200515Z AUTO 05003KT 7SM SCT045 24/21 A2996 RMK AO2 T02360208 | ||||||||||||||||
| 12:35 AM | Calm | 7 | BKN043 | 75 | 70 | 75 | 84 | 29.96 | 0.00 | M | M | |||||
| KALN 200535Z AUTO 00000KT 7SM BKN043 24/21 A2996 RMK AO2 T02380210 | ||||||||||||||||
| 12:55 AM | Calm | 7 | SCT040 BKN048 | 74 | 70 | 74 | 84 | 74 | 86 | 29.96 | 0.00 | M | M | |||
| KALN 200555Z AUTO 00000KT 7SM SCT040 BKN048 24/21 A2996 RMK AO2 T02350210 10291 20235 403210232 | ||||||||||||||||
| 1:15 AM | E 3 | 7 | SCT048 | 73 | 69 | 73 | 87 | 29.95 | 0.00 | M | M | |||||
| KALN 200615Z AUTO 08003KT 7SM SCT048 23/21 A2995 RMK AO2 T02300208 | ||||||||||||||||
| 1:35 AM | Calm | 7 | SCT046 | 72 | 69 | 72 | 92 | 29.95 | 0.00 | M | M | |||||
| KALN 200635Z AUTO 00000KT 7SM SCT046 22/21 A2995 RMK AO2 T02200206 | ||||||||||||||||
| 1:55 AM | Calm | 7 | SCT030 | 73 | 69 | 73 | 88 | 29.94 | 0.00 | M | M | |||||
| KALN 200655Z AUTO 00000KT 7SM SCT030 23/21 A2994 RMK AO2 T02270207 | ||||||||||||||||
| 2:15 AM | Calm | 7 | CLR | 72 | 69 | 72 | 91 | 29.93 | 0.00 | M | M | |||||
| KALN 200715Z AUTO 00000KT 7SM CLR 22/21 A2993 RMK AO2 T02210206 | ||||||||||||||||
| 2:35 AM | Calm | 5 | SCT029 SCT041 | BR | 72 | 69 | 72 | 91 | 29.93 | 0.00 | M | M | ||||
| KALN 200735Z AUTO 00000KT 5SM BR SCT029 SCT041 22/20 A2993 RMK AO2 T02200204 | ||||||||||||||||
API: The IEM API webservice that provided data to this page. For more details, see documentation.
Data Notes
- For recent years, this page also optionally shows observations from the MADIS High Frequency METAR dataset. This dataset had a problem with temperatures detailed here.