Merrimac Weather Forecast
- 64
- 73
Rain Showers Likely
- 61
- 79
Partly Sunny
- 64
- 84
Chance Rain Showers
- 59
- 82
Chance Rain Showers
- 59
- 80
Partly Sunny
- 59
- 77
Slight Chance Rain Showers
Today 17 Aug Western Essex
Cloudy. Showers Likely, mainly in the morning. Patchy fog. Humid with Highs in the mid 70s. South Winds 5 to 10 Mph. Chance of rain 60 percent.
Tonight 17 Aug Western Essex
Mostly cloudy. Patchy fog. Humid with Lows in the mid 60s. East Winds around 5 Mph in the Evening, becoming light and variable.
Merrimac Temperature Statistics
August Temperature
Lawrence Municipal Airport (9.9 miles)
Lowest 4 August, 2026
61 °FAverage August
76.1 °FHighest 6 August, 2026
90 °F
Climate (2021–2026)
Lawrence Municipal Airport (9.9 miles)
Average Low 2021–2026
42.8 °FAverage 2021–2026
51.9 °FAverage High 2021–2026
60.9 °F