Lewiston Weather Forecast
- 67
- 83
Rain Showers
- 64
- 76
Rain Showers
- 63
- 73
Rain Showers Likely
- 64
- 79
Mostly Sunny
- 67
- 81
Partly Sunny
- 67
- 81
Chance Rain Showers
Today 27 Jul Niagara
Mostly sunny. Highs in the mid 80s. West Winds 10 Mph or Less, becoming southwest.
Tonight 27 Jul Niagara
A chance of Showers and Thunderstorms Early, then Showers with a chance of Thunderstorms from late evening on. Lows in the mid 60s. South Winds 10 Mph or less. Chance of rain 90 percent.
Lewiston Temperature Statistics
July Temperature
Niagara Falls, Niagara Falls International Airport (6.2 miles)
Lowest 23 July, 2026
50 °FAverage July
72.5 °FHighest 1 July, 2026
90 °F
Climate (2021–2026)
Niagara Falls, Niagara Falls International Airport (6.2 miles)
Average Low 2021–2026
43 °FAverage 2021–2026
51.4 °FAverage High 2021–2026
59.7 °F