Riverside (Merrimack River) Weather Forecast
- 51
- 76
Rain Showers
- 51
- 75
Mostly Sunny
- 53
- 76
Mostly Sunny
- 53
- 76
Mostly Sunny
- 53
- 76
Mostly Sunny
- 55
- 78
Partly Sunny
Today 29 Aug Western Essex
Partly sunny with a chance of Showers this Morning, then mostly cloudy with Showers with a chance of Thunderstorms this afternoon. Some Thunderstorms may produce gusty Winds, small Hail, and heavy rainfall this afternoon. Highs in the mid 70s. South Winds 10 to 15 Mph. Chance of rain 90 percent.
Tonight 29 Aug Western Essex
Mostly cloudy with Showers likely with isolated Thunderstorms in the Evening, then partly cloudy after midnight. Some Thunderstorms may produce gusty Winds, small Hail, and heavy rainfall in the evening. Lows in the lower 50s. Southwest Winds 5 to 10 Mph, becoming northwest after midnight. Chance of rain 70 percent.
Riverside (Merrimack River) Temperature Statistics
August Temperature
Lawrence Municipal Airport (5.6 miles)
Lowest 22 August, 2025
50.6 °FAverage August
70.8 °FHighest 11 August, 2025
93.7 °F
Climate (2020–Present)
Lawrence Municipal Airport (5.6 miles)
Average Low 2020–2025
43.2 °FAverage 2020–2025
52.2 °FAverage High 2020–2025
61.2 °F