Grass Island Weather Forecast
- 69
- 84
Chance Thunderstorms
- 66
- 79
Partly Sunny
- 67
- 79
Mostly Sunny
- 68
- 80
Mostly Sunny
- 74
- 85
Mostly Sunny
- 72
- 87
Partly Sunny
Today 10 Jul Southern Fairfield
Patchy fog this morning. Mostly sunny this Morning, then mostly cloudy with a slight chance of Showers and Thunderstorms this afternoon. Highs in the upper 80s. Northwest Winds 5 to 10 Mph. Chance of rain 20 percent. Heat index Values in the mid 90s.
Tonight 10 Jul Southern Fairfield
Mostly cloudy. A chance of Showers and Thunderstorms in the Evening, then a slight chance of Showers after midnight. Patchy fog after midnight. Humid with Lows in the upper 60s. Northwest Winds around 5 Mph. Chance of rain 40 percent.
Grass Island Temperature Statistics
July Temperature
White Plains - Westchester County Airport (8.7 miles)
Lowest 7 July, 2026
61 °FAverage July
77.4 °FHighest 2 July, 2026
98.1 °F
Climate (2021–2026)
White Plains - Westchester County Airport (8.7 miles)
Average Low 2021–2026
45.8 °FAverage 2021–2026
54 °FAverage High 2021–2026
62.3 °F