Past Weather in Merrimack — Graph
Merrimack Temperature Yesterday
Maximum temperature yesterday: 30 °F (at 1:53 am)
Minimum temperature yesterday: 4 °F (at 11:53 pm)
Average temperature yesterday: 18 °F
High & Low Weather Summary for the Past Weeks
| Temperature | Humidity | Pressure | |
|---|---|---|---|
| High | 58 °F (Nov 26, 2:36 pm) | 97% (Nov 26, 12:53 am) | 30.54 "Hg (Nov 26, 12:53 am) |
| Low | -1 °F (Dec 9, 1:53 am) | 33% (Dec 8, 12:53 pm) | 29.60 "Hg (Nov 27, 12:35 am) |
| Average | 31 °F | 70% | 30.04 "Hg |
| * Reported Nov 24 5:53 am — Dec 9 5:53 am, Merrimack. Weather by CustomWeather, © 2025 | |||
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
Merrimack Weather History for the Previous 24 Hours
Scroll right to see more
| Conditions | Comfort | |||||||
|---|---|---|---|---|---|---|---|---|
| Time | Temp | Weather | Wind | Humidity | Barometer | Visibility | ||
| 5:53 am Tue, Dec 9 |  | -1 °F | Clear. | No wind | ↑ | 79% | 30.28 "Hg | 10 mi |
| 4:53 am | | -1 °F | Clear. | 5 mph | ↑ | 79% | 30.27 "Hg | 10 mi |
| 3:53 am | | 1 °F | Clear. | 5 mph | ↑ | 75% | 30.27 "Hg | 10 mi |
| 2:53 am | | 0 °F | Clear. | No wind | ↑ | 79% | 30.29 "Hg | 10 mi |
| 1:53 am | | -1 °F | Clear. | No wind | ↑ | 82% | 30.29 "Hg | 10 mi |
| 12:53 am |  | 2 °F | Passing clouds. | No wind | ↑ | 80% | 30.29 "Hg | 10 mi |
| 11:53 pm Mon, Dec 8 | | 4 °F | Passing clouds. | 3 mph | ↑ | 73% | 30.31 "Hg | 10 mi |
| 10:53 pm | | 5 °F | Passing clouds. | No wind | ↑ | 69% | 30.32 "Hg | 10 mi |
| 9:53 pm | | 10 °F | Passing clouds. | 7 mph | ↑ | 58% | 30.32 "Hg | 10 mi |
| 8:53 pm | | 8 °F | Passing clouds. | 3 mph | ↑ | 60% | 30.34 "Hg | 10 mi |
| 7:53 pm | | 14 °F | Passing clouds. | 5 mph | ↑ | 47% | 30.34 "Hg | 10 mi |
| 6:53 pm | | 14 °F | Passing clouds. | 5 mph | ↑ | 49% | 30.33 "Hg | 10 mi |
| 5:53 pm | | 16 °F | Passing clouds. | 9 mph | ↑ | 43% | 30.32 "Hg | 10 mi |
| 4:53 pm | | 16 °F | Passing clouds. | 10 mph | ↑ | 45% | 30.31 "Hg | 10 mi |
| 3:53 pm |  | 19 °F | Scattered clouds. | 9 mph | ↑ | 38% | 30.30 "Hg | 10 mi |
| 2:53 pm | | 21 °F | Scattered clouds. | 16 mph | ↑ | 34% | 30.27 "Hg | 10 mi |
| 1:53 pm | | 22 °F | Passing clouds. | 16 mph | ↑ | 33% | 30.26 "Hg | 10 mi |
| 12:53 pm | | 21 °F | Scattered clouds. | 22 mph | ↑ | 33% | 30.25 "Hg | 10 mi |
| 11:53 am | | 21 °F | Scattered clouds. | 15 mph | ↑ | 36% | 30.26 "Hg | 10 mi |
| 10:53 am | | 20 °F | Scattered clouds. | 18 mph | ↑ | 38% | 30.27 "Hg | 10 mi |
| 9:53 am | | 20 °F | Scattered clouds. | 17 mph | ↑ | 40% | 30.26 "Hg | 10 mi |
| 8:53 am | | 20 °F | Scattered clouds. | 23 mph | ↑ | 45% | 30.25 "Hg | 10 mi |
| 7:53 am | | 19 °F | Scattered clouds. | 10 mph | ↑ | 57% | 30.21 "Hg | 10 mi |
| Weather by CustomWeather, © 2025 | ||||||||