Past Weather in Merrimack — Graph
Merrimack Temperature Yesterday
Maximum temperature yesterday: 24 °F (at 11:53 pm)
Minimum temperature yesterday: 5 °F (at 7:53 am)
Average temperature yesterday: 15 °F
High & Low Weather Summary for the Past Weeks
| Temperature | Humidity | Pressure | |
|---|---|---|---|
| High | 58 °F (Nov 26, 2:36 pm) | 97% (Nov 22, 3:53 am) | 30.54 "Hg (Nov 22, 3:53 am) |
| Low | 5 °F (Dec 5, 7:53 am) | 35% (Nov 29, 1:53 pm) | 29.60 "Hg (Nov 27, 12:35 am) |
| Average | 33 °F | 72% | 30.02 "Hg |
| * Reported Nov 21 1:53 am — Dec 6 1:53 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
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| Conditions | Comfort | |||||||
|---|---|---|---|---|---|---|---|---|
| Time | Temp | Weather | Wind | Humidity | Barometer | Visibility | ||
| 1:53 am Sat, Dec 6 |  | 24 °F | Overcast. | No wind | ↑ | 57% | 30.02 "Hg | 10 mi |
| 12:53 am | | 23 °F | Overcast. | No wind | ↑ | 60% | 30.04 "Hg | 10 mi |
| 11:53 pm Fri, Dec 5 | | 24 °F | Overcast. | No wind | ↑ | 52% | 30.06 "Hg | 10 mi |
| 11:32 pm | | 23 °F | Overcast. | 3 mph | ↑ | 55% | 30.00 "Hg | 10 mi |
| 10:53 pm | | 23 °F | Mostly cloudy. | No wind | ↑ | 55% | 30.08 "Hg | 10 mi |
| 9:53 pm | | 23 °F | Overcast. | 5 mph | ↑ | 50% | 30.11 "Hg | 10 mi |
| 8:53 pm | | 22 °F | Overcast. | 6 mph | ↑ | 50% | 30.13 "Hg | 10 mi |
| 7:53 pm | | 22 °F | Overcast. | 6 mph | ↑ | 46% | 30.14 "Hg | 10 mi |
| 6:53 pm | | 20 °F | Mostly cloudy. | 6 mph | ↑ | 45% | 30.14 "Hg | 10 mi |
| 5:53 pm | | 19 °F | Overcast. | 7 mph | ↑ | 45% | 30.16 "Hg | 10 mi |
| 4:53 pm |  | 19 °F | Passing clouds. | 7 mph | ↑ | 43% | 30.17 "Hg | 10 mi |
| 3:53 pm |  | 20 °F | Partly sunny. | 6 mph | ↑ | 40% | 30.18 "Hg | 10 mi |
| 2:53 pm |  | 22 °F | Scattered clouds. | 9 mph | ↑ | 35% | 30.20 "Hg | 10 mi |
| 1:53 pm | | 20 °F | Scattered clouds. | 7 mph | ↑ | 40% | 30.23 "Hg | 10 mi |
| 12:53 pm | | 19 °F | Scattered clouds. | 7 mph | ↑ | 38% | 30.27 "Hg | 10 mi |
| 11:53 am | | 16 °F | Scattered clouds. | No wind | ↑ | 40% | 30.30 "Hg | 10 mi |
| 10:53 am | | 13 °F | Scattered clouds. | 3 mph | ↑ | 46% | 30.34 "Hg | 10 mi |
| 9:53 am |  | 10 °F | Sunny. | 3 mph | ↑ | 45% | 30.37 "Hg | 10 mi |
| 8:53 am | | 7 °F | Sunny. | No wind | ↑ | 52% | 30.38 "Hg | 10 mi |
| 7:53 am | | 5 °F | Sunny. | No wind | ↑ | 60% | 30.38 "Hg | 10 mi |
| 6:53 am |  | 6 °F | Clear. | No wind | ↑ | 52% | 30.37 "Hg | 10 mi |
| 5:53 am | | 7 °F | Clear. | 6 mph | ↑ | 50% | 30.36 "Hg | 10 mi |
| 4:53 am | | 7 °F | Clear. | 7 mph | ↑ | 50% | 30.34 "Hg | 10 mi |
| 3:53 am | | 8 °F | Clear. | 10 mph | ↑ | 49% | 30.34 "Hg | 10 mi |
| Weather by CustomWeather, © 2025 | ||||||||