29 September 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 | Calm | 10 | CLR | 52 | 49 | 52 | 89 | 30.03 | 0.00 | M | M | |||||
| KALN 290515Z AUTO 00000KT 10SM CLR 11/10 A3003 RMK AO2 T01140096 | ||||||||||||||||
| 12:35 AM | Calm | 10 | CLR | 53 | 49 | 53 | 85 | 30.03 | 0.00 | M | M | |||||
| KALN 290535Z AUTO 00000KT 10SM CLR 12/10 A3003 RMK AO2 T01190095 | ||||||||||||||||
| 12:55 AM | Calm | 10 | CLR | 53 | 50 | 53 | 67 | 52 | 88 | 30.04 | 0.00 | M | M | |||
| KALN 290555Z AUTO 00000KT 10SM CLR 12/10 A3004 RMK AO2 T01160098 10196 20114 402740114 | ||||||||||||||||
| 1:15 AM | Calm | 10 | CLR | 51 | 49 | 51 | 92 | 30.04 | 0.00 | M | M | |||||
| KALN 290615Z AUTO 00000KT 10SM CLR 11/09 A3004 RMK AO2 T01070094 | ||||||||||||||||
| 1:35 AM | Calm | 10 | CLR | 51 | 48 | 51 | 91 | 30.04 | 0.00 | M | M | |||||
| KALN 290635Z AUTO 00000KT 10SM CLR 11/09 A3004 RMK AO2 T01050091 | ||||||||||||||||
| 1:55 AM | E 3 | 10 | CLR | 51 | 48 | 51 | 89 | 30.04 | 0.00 | M | M | |||||
| KALN 290655Z AUTO 08003KT 10SM CLR 11/09 A3004 RMK AO2 T01070090 TSNO | ||||||||||||||||
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.