Currently: 44 °F. Partly sunny. (Weather station: Manchester Airport, USA). See more current weatherPast Weather in Merrimack — Graph
Merrimack Temperature Yesterday
Maximum temperature yesterday: 55 °F (at 3:53 pm)
Minimum temperature yesterday: 27 °F (at 6:53 am)
Average temperature yesterday: 42 °F
High & Low Weather Summary for the Past Weeks
| Temperature | Humidity | Pressure | |
|---|---|---|---|
| High | 76 °F (Mar 10, 3:53 pm) | 100% (Mar 7, 1:53 am) | 30.56 "Hg (Mar 7, 1:53 am) |
| Low | 22 °F (Mar 18, 5:53 am) | 19% (Mar 9, 4:53 pm) | 29.22 "Hg (Mar 17, 2:53 am) |
| Average | 40 °F | 67% | 29.99 "Hg |
| * Reported Mar 6 11:53 am — Mar 21 12:53 pm, Merrimack. 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
Merrimack Weather History for the Previous 24 Hours
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| Conditions | Comfort | |||||||
|---|---|---|---|---|---|---|---|---|
| Time | Temp | Weather | Wind | Humidity | Barometer | Visibility | ||
| 12:53 pm Sat, Mar 21 | | 45 °F | Partly sunny. | 20 mph | ↑ | 49% | 29.93 "Hg | 10 mi |
| 11:53 am | | 45 °F | Partly sunny. | 18 mph | ↑ | 53% | 29.91 "Hg | 10 mi |
| 10:53 am | | 46 °F | Partly sunny. | 22 mph | ↑ | 56% | 29.90 "Hg | 10 mi |
| 9:53 am | | 45 °F | Partly sunny. | 13 mph | ↑ | 60% | 29.89 "Hg | 10 mi |
| 8:53 am |  | 42 °F | Overcast. | 15 mph | ↑ | 76% | 29.85 "Hg | 10 mi |
| 8:23 am | | 41 °F | Mostly cloudy. | 9 mph | ↑ | 82% | 29.80 "Hg | 10 mi |
| 7:53 am | | 41 °F | Mostly cloudy. | 14 mph | ↑ | 82% | 29.84 "Hg | 10 mi |
| 6:53 am | | 41 °F | Mostly cloudy. | 9 mph | ↑ | 82% | 29.80 "Hg | 10 mi |
| 5:53 am |  | 42 °F | Mostly cloudy. | 8 mph | ↑ | 85% | 29.77 "Hg | 10 mi |
| 4:53 am | | 42 °F | Mostly cloudy. | No wind | ↑ | 89% | 29.75 "Hg | 10 mi |
| 4:01 am | | 42 °F | Mostly cloudy. | 5 mph | ↑ | 89% | 29.70 "Hg | 10 mi |
| 2:53 am | | 42 °F | Overcast. | No wind | ↑ | 89% | 29.75 "Hg | 10 mi |
| 1:53 am | | 42 °F | Mostly cloudy. | 8 mph | ↑ | 89% | 29.77 "Hg | 10 mi |
| 12:53 am | | 42 °F | Overcast. | 10 mph | ↑ | 89% | 29.77 "Hg | 10 mi |
| 11:53 pm Fri, Mar 20 | | 43 °F | Overcast. | 7 mph | ↑ | 86% | 29.78 "Hg | 10 mi |
| 10:53 pm | | 43 °F | Mostly cloudy. | 8 mph | ↑ | 86% | 29.80 "Hg | 10 mi |
| 9:53 pm | | 44 °F | Overcast. | 12 mph | ↑ | 85% | 29.81 "Hg | 10 mi |
| 8:53 pm | | 44 °F | Overcast. | 9 mph | ↑ | 85% | 29.83 "Hg | 10 mi |
| 7:53 pm |  | 45 °F | Light rain. Overcast. | 6 mph | ↑ | 86% | 29.83 "Hg | 10 mi |
| 6:53 pm |  | 46 °F | Light rain. Overcast. | 8 mph | ↑ | 83% | 29.82 "Hg | 7 mi |
| 5:53 pm | | 49 °F | Light rain. Overcast. | 10 mph | ↑ | 69% | 29.78 "Hg | 6 mi |
| 4:53 pm | | 54 °F | Light rain. Overcast. | 18 mph | ↑ | 49% | 29.76 "Hg | 10 mi |
| 3:53 pm | | 55 °F | More clouds than sun. | 12 mph | ↑ | 44% | 29.80 "Hg | 10 mi |
| 2:53 pm | | 54 °F | Overcast. | 14 mph | ↑ | 40% | 29.85 "Hg | 10 mi |
| Weather by CustomWeather, © 2026 | ||||||||