Grammar Airport Weather Forecast
- 11
- 31
Snow Likely
- 17
- 24
Snow Likely
- 21
- 37
Chance Snow
- 20
- 32
Snow Likely
- 25
- 36
Partly Sunny
- 25
- 46
Chance Snow Showers
Today 23 Feb Ontario
Snow Showers. Additional accumulation Ranging from an inch or less across the lower Elevations to 2 to 3 Inches across the higher Terrain. Highs Ranging from the mid 20s on the Hilltops to the lower 30s across the lower Elevations. North Winds 5 to 10 Mph, increasing to 10 to 15 Mph. Chance of snow near 100 percent.
Tonight 23 Feb Ontario
Snow Showers. Additional accumulation 1 to 3 Inches. Much Colder with Lows 5 to 10 above. Northwest Winds 10 to 15 Mph. Chance of snow 90 percent.
Grammar Airport Temperature Statistics
February Temperature
Penn Yan, Penn Yan Airport (16.2 miles)
Lowest 9 February, 2026
-4 °FAverage February
22.6 °FHighest 16 February, 2026
48 °F
Climate (2021–Present)
Penn Yan, Penn Yan Airport (16.2 miles)
Average Low 2021–2026
41.8 °FAverage 2021–2026
50.4 °FAverage High 2021–2026
59.1 °F