Merrimac Weather Forecast
- 33
- 41
Rain Likely
- 37
- 60
Rain
- 20
- 44
Partly Sunny
- 24
- 38
Mostly Cloudy
- 28
- 43
Mostly Cloudy
- 31
- 50
Chance Rain
- 27
- 47
Chance Rain
Today 15 Mar Western Essex
Partly sunny. Near steady temperature in the lower 40s. Southeast Winds 5 to 10 Mph.
Tonight 15 Mar Western Essex
Mostly cloudy. A chance of rain Showers after midnight. Locally heavy rainfall possible after midnight. Lows in the mid 30s. Southeast Winds 5 to 10 Mph. Chance of rain 50 percent.
Merrimac Temperature Statistics
March Temperature
Lawrence Municipal Airport (9.9 miles)
Lowest 2 March, 2026
6.1 °FAverage March
37.4 °FHighest 10 March, 2026
73 °F
Climate (2021–Present)
Lawrence Municipal Airport (9.9 miles)
Average Low 2021–2026
43 °FAverage 2021–2026
52 °FAverage High 2021–2026
60.9 °F