23 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 | ENE 6 | 10 | SCT070 | 68 | 60 | 68 | 77 | 30.12 | 0.00 | M | M | |||||
| KALN 230515Z AUTO 06005KT 10SM SCT070 20/16 A3012 RMK AO2 T02010158 | ||||||||||||||||
| 12:35 AM | NE 5 | 10 | CLR | 68 | 59 | 68 | 75 | 30.12 | 0.00 | M | M | |||||
| KALN 230535Z AUTO 05004KT 10SM CLR 20/15 A3012 RMK AO2 T01980152 TSNO | ||||||||||||||||
| 12:55 AM | NE 3 | 10 | BKN060 | 67 | 59 | 67 | 76 | 67 | 75 | 30.13 | 0.00 | M | M | |||
| KALN 230555Z AUTO 05003KT 10SM BKN060 20/15 A3013 RMK AO2 T01960150 10245 20196 402700183 | ||||||||||||||||
| 1:15 AM | NE 3 | 10 | OVC060 | 67 | 59 | 67 | 74 | 30.13 | 0.00 | M | M | |||||
| KALN 230615Z AUTO 04003KT 10SM OVC060 20/15 A3013 RMK AO2 T01950148 | ||||||||||||||||
| 1:35 AM | Calm | 10 | OVC060 | 66 | 59 | 66 | 78 | 30.13 | 0.00 | M | M | |||||
| KALN 230635Z AUTO 00000KT 10SM OVC060 19/15 A3013 RMK AO2 T01910152 TSNO | ||||||||||||||||
| 1:55 AM | Calm | 10 | OVC060 | 66 | 60 | 66 | 81 | 30.13 | 0.00 | M | M | |||||
| KALN 230655Z AUTO 00000KT 10SM OVC060 19/15 A3013 RMK AO2 T01860153 | ||||||||||||||||
| 2:15 AM | Calm | 10 | SCT060 | 65 | 59 | 65 | 81 | 30.13 | 0.00 | M | M | |||||
| KALN 230715Z AUTO 00000KT 10SM SCT060 18/15 A3013 RMK AO2 T01820151 TSNO | ||||||||||||||||
| 2:35 AM | Calm | 10 | CLR | 64 | 59 | 64 | 81 | 30.13 | 0.00 | M | M | |||||
| KALN 230735Z AUTO 00000KT 10SM CLR 18/15 A3013 RMK AO2 T01800148 | ||||||||||||||||
| 2:55 AM | Calm | 10 | CLR | 64 | 58 | 64 | 80 | 30.13 | 0.00 | M | M | |||||
| KALN 230755Z AUTO 00000KT 10SM CLR 18/15 A3013 RMK AO2 T01790145 TSNO | ||||||||||||||||
| 3:15 AM | Calm | 10 | CLR | 63 | 58 | 63 | 84 | 30.14 | 0.00 | M | M | |||||
| KALN 230815Z AUTO 00000KT 10SM CLR 17/15 A3014 RMK AO2 T01730145 TSNO | ||||||||||||||||
| 3:35 AM | Calm | 10 | CLR | 63 | 58 | 63 | 84 | 30.15 | 0.00 | M | M | |||||
| KALN 230835Z AUTO 00000KT 10SM CLR 17/15 A3015 RMK AO2 T01730145 | ||||||||||||||||
| 3:55 AM | Calm | 10 | CLR | 63 | 58 | 63 | 84 | 30.16 | 0.00 | M | M | |||||
| KALN 230855Z AUTO 00000KT 10SM CLR 17/15 A3016 RMK AO2 T01710145 | ||||||||||||||||
| 4:15 AM | Calm | 10 | CLR | 62 | 58 | 62 | 87 | 30.16 | 0.00 | M | M | |||||
| KALN 230915Z AUTO 00000KT 10SM CLR 17/15 A3016 RMK AO2 T01660145 | ||||||||||||||||
| 4:35 AM | Calm | 10 | CLR | 62 | 58 | 62 | 85 | 30.16 | 0.00 | M | M | |||||
| KALN 230935Z AUTO 00000KT 10SM CLR 17/14 A3016 RMK AO2 T01660142 | ||||||||||||||||
| 4:55 AM | Calm | 10 | CLR | 62 | 57 | 62 | 85 | 30.16 | 0.00 | M | M | |||||
| KALN 230955Z AUTO 00000KT 10SM CLR 17/14 A3016 RMK AO2 T01660141 | ||||||||||||||||
| 5:15 AM | Calm | 10 | CLR | 62 | 57 | 62 | 86 | 30.16 | 0.00 | M | M | |||||
| KALN 231015Z AUTO 00000KT 10SM CLR 16/14 A3016 RMK AO2 T01640141 | ||||||||||||||||
| 5:35 AM | ENE 5 | 10 | CLR | 61 | 57 | 61 | 86 | 30.17 | 0.00 | M | M | |||||
| KALN 231035Z AUTO 07004KT 10SM CLR 16/14 A3017 RMK AO2 T01630140 | ||||||||||||||||
| 5:55 AM | Calm | 7 | CLR | 62 | 57 | 62 | 85 | 30.17 | 0.00 | M | M | |||||
| KALN 231055Z AUTO 00000KT 7SM CLR 16/14 A3017 RMK AO2 T01640139 | ||||||||||||||||
| 6:15 AM | Calm | 5 | CLR | BR | 60 | 57 | 60 | 89 | 30.18 | 0.00 | M | M | ||||
| KALN 231115Z AUTO 00000KT 5SM BR CLR 16/14 A3018 RMK AO2 T01580140 | ||||||||||||||||
| 6:35 AM | Calm | 5 | CLR | BR | 61 | 58 | 61 | 90 | 30.18 | 0.00 | M | M | ||||
| KALN 231135Z AUTO 00000KT 5SM BR CLR 16/14 A3018 RMK AO2 T01590142 TSNO | ||||||||||||||||
| 6:50 AM | E 3 | 10 | CLR | 61 | 57 | 61 | 88 | 30.18 | 0.00 | M | M | |||||
| KALN 231150Z 09003KT 10SM CLR 16/14 A3018 | ||||||||||||||||
| 7:50 AM | E 7 | 10 | SCT045 | 64 | 57 | 64 | 77 | 30.2 | 0.00 | M | M | |||||
| KALN 231250Z 08006KT 10SM SCT045 18/14 A3020 | ||||||||||||||||
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.