Past Weather in Waltham — Graph
Waltham Temperature Yesterday
Maximum temperature yesterday: 22 °F (at 2:51 am)
Minimum temperature yesterday: 11 °F (at 9:51 pm)
Average temperature yesterday: 17 °F
High & Low Weather Summary for the Past Weeks
| Temperature | Humidity | Pressure | |
|---|---|---|---|
| High | 51 °F (Jan 9, 11:22 pm) | 100% (Jan 8, 3:51 am) | 30.55 "Hg (Jan 8, 3:51 am) |
| Low | 8 °F (Jan 21, 7:51 am) | 26% (Jan 16, 2:51 pm) | 29.28 "Hg (Jan 15, 12:28 pm) |
| Average | 32 °F | 75% | 29.92 "Hg |
| * Reported Jan 6 5:51 pm — Jan 21 5:51 pm, Waltham. 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
Waltham Weather History for the Previous 24 Hours
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| Conditions | Comfort | |||||||
|---|---|---|---|---|---|---|---|---|
| Time | Temp | Weather | Wind | Humidity | Barometer | Visibility | ||
| 5:51 pm Wed, Jan 21 |  | 25 °F | Mostly cloudy. | 9 mph | ↑ | 48% | 30.33 "Hg | 10 mi |
| 4:51 pm | | 24 °F | Mostly cloudy. | 5 mph | ↑ | 42% | 30.37 "Hg | 10 mi |
| 3:51 pm |  | 24 °F | Sunny. | 9 mph | ↑ | 38% | 30.39 "Hg | 10 mi |
| 2:51 pm | | 25 °F | Sunny. | 12 mph | ↑ | 32% | 30.39 "Hg | 10 mi |
| 1:51 pm | | 24 °F | Sunny. | 10 mph | ↑ | 33% | 30.41 "Hg | 10 mi |
| 12:51 pm | | 23 °F | Sunny. | 6 mph | ↑ | 35% | 30.45 "Hg | 10 mi |
| 11:51 am | | 22 °F | Sunny. | 14 mph | ↑ | 35% | 30.48 "Hg | 10 mi |
| 10:51 am | | 19 °F | Sunny. | 14 mph | ↑ | 39% | 30.51 "Hg | 10 mi |
| 9:51 am | | 17 °F | Sunny. | 13 mph | ↑ | 39% | 30.55 "Hg | 10 mi |
| 8:51 am | | 11 °F | Sunny. | 3 mph | ↑ | 53% | 30.55 "Hg | 10 mi |
| 7:51 am | | 8 °F | Sunny. | 3 mph | ↑ | 57% | 30.55 "Hg | 10 mi |
| 6:51 am |  | 9 °F | Clear. | 3 mph | ↑ | 55% | 30.54 "Hg | 10 mi |
| 5:51 am | | 9 °F | Clear. | 5 mph | ↑ | 52% | 30.53 "Hg | 10 mi |
| 4:51 am | | 9 °F | Clear. | 3 mph | ↑ | 55% | 30.53 "Hg | 10 mi |
| 3:51 am | | 9 °F | Clear. | No wind | ↑ | 55% | 30.50 "Hg | 10 mi |
| 2:51 am | | 9 °F | Clear. | 3 mph | ↑ | 52% | 30.51 "Hg | 10 mi |
| 1:51 am | | 10 °F | Clear. | 7 mph | ↑ | 48% | 30.50 "Hg | 10 mi |
| 12:51 am | | 10 °F | Clear. | 3 mph | ↑ | 50% | 30.48 "Hg | 10 mi |
| 11:51 pm Tue, Jan 20 | | 11 °F | Clear. | 3 mph | ↑ | 48% | 30.47 "Hg | 10 mi |
| 10:51 pm | | 11 °F | Clear. | 7 mph | ↑ | 48% | 30.46 "Hg | 10 mi |
| 9:51 pm | | 11 °F | Clear. | 7 mph | ↑ | 46% | 30.43 "Hg | 10 mi |
| 8:51 pm | | 13 °F | Clear. | 3 mph | ↑ | 42% | 30.42 "Hg | 10 mi |
| 7:51 pm | | 13 °F | Clear. | 5 mph | ↑ | 46% | 30.39 "Hg | 10 mi |
| Weather by CustomWeather, © 2026 | ||||||||