Lawrenceville Weather Forecast
- 51
- 69
Slight Chance Rain Showers
- 47
- 71
Mostly Sunny
- 55
- 75
Partly Sunny
- 58
- 74
Chance Rain Showers
- 61
- 77
Rain Showers Likely
- 50
- 71
Chance Rain Showers
- 49
- 65
Partly Sunny
Today 5 Sep Northern St. Lawrence
Mostly cloudy through late Morning, then becoming partly sunny. A slight chance of Showers through late Morning, then a chance of Showers this afternoon. Highs in the lower 70s. Light and variable Winds, becoming northeast around 10 Mph this afternoon. Chance of rain 40 percent.
Tonight 5 Sep Northern St. Lawrence
Partly cloudy. A slight chance of Showers until midnight. Lows in the lower 50s. Northeast Winds around 10 Mph until Midnight, becoming light and variable. Chance of rain 20 percent.
Lawrenceville Temperature Statistics
September Temperature
Massena, Massena International-Richards Field (14.3 miles)
Lowest 2 September, 2026
59.6 °FAverage September
70.6 °FHighest 2 September, 2026
81.6 °F
Climate (2021–2026)
Massena, Massena International-Richards Field (14.3 miles)
Average Low 2021–2026
36 °FAverage 2021–2026
46.2 °FAverage High 2021–2026
55.9 °F