Past Weather in Siena — Graph
Siena Temperature Yesterday
Maximum temperature yesterday: 51 °F (at 1:00 pm)
Minimum temperature yesterday: 44 °F (at 10:00 pm)
Average temperature yesterday: 47 °F
High & Low Weather Summary for the Past Weeks
| Temperature | Humidity | Pressure | |
|---|---|---|---|
| High | 58 °F (Jan 17, 2:00 pm) | 98% (Jan 16, 10:00 am) | 30.29 "Hg (Jan 16, 10:00 am) |
| Low | 35 °F (Jan 17, 4:00 am) | 61% (Jan 18, 1:00 pm) | 29.78 "Hg (Jan 21, 1:00 pm) |
| Average | 47 °F | 79% | 30.16 "Hg |
| * Reported Jan 8 4:00 pm — Jan 21 1:00 pm, Siena. Weather by CustomWeather, © 2026 | |||
Note: Actual official high and low records may vary slightly from our data, if they occured in-between our weather recording intervals... More about our weather records
Siena Weather History for the Previous 24 Hours
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| Conditions | Comfort | |||||||
|---|---|---|---|---|---|---|---|---|
| Time | Temp | Weather | Wind | Humidity | Barometer | Visibility | ||
| 1:00 pm Wed, Jan 21 |  | 46 °F | Cool. | 9 mph | ↑ | 71% | 29.78 "Hg | N/A |
| 10:00 am | | 43 °F | Quite cool. | 20 mph | ↑ | 73% | 29.85 "Hg | N/A |
| 9:00 am | | 42 °F | Quite cool. | 13 mph | ↑ | 75% | 29.86 "Hg | N/A |
| 8:00 am | | 41 °F | Quite cool. | 11 mph | ↑ | 77% | 29.87 "Hg | N/A |
| 7:00 am | | 42 °F | Quite cool. | 18 mph | ↑ | 77% | 29.88 "Hg | N/A |
| 4:00 am | | 43 °F | Quite cool. | 13 mph | ↑ | 74% | 29.93 "Hg | N/A |
| 2:00 am | | 43 °F | Quite cool. | 16 mph | ↑ | 74% | 29.96 "Hg | N/A |
| 1:00 am | | 43 °F | Quite cool. | 16 mph | ↑ | 73% | 29.98 "Hg | N/A |
| 12:00 am | | 43 °F | Quite cool. | 18 mph | ↑ | 71% | 30.02 "Hg | N/A |
| 10:00 pm Tue, Jan 20 | | 44 °F | Quite cool. | 18 mph | ↑ | 68% | 30.04 "Hg | N/A |
| 7:00 pm | | 45 °F | Quite cool. | 25 mph | ↑ | 70% | 30.09 "Hg | N/A |
| 4:00 pm | | 48 °F | Cool. | 20 mph | ↑ | 68% | 30.10 "Hg | N/A |
| Weather by CustomWeather, © 2026 | ||||||||