Winchester Weather Forecast
- 68
- 99
Hot
- 68
- 99
Hot
- 67
- 99
Hot
- 70
- 100
Hot
- 69
- 101
Hot
- 64
- 97
Hot
Today 4 Oct San Bernardino and Riverside County Valleys-The Inland Empire
Sunny, hot. Highs 96 to 103. Areas of Winds east 15 to 25 Mph. Gusts to 35 Mph. Becoming 40 Mph this afternoon.
Tonight 4 Oct San Bernardino and Riverside County Valleys-The Inland Empire
Clear. Lows 67 to 73. Areas of Winds east 10 to 15 Mph. Gusts to 30 Mph. Becoming 25 Mph overnight.
Winchester Temperature Statistics
October Temperature
Murrieta/Temecula French Valley (9.3 miles)
Lowest 1 October, 2026
58.3 °FAverage October
81.5 °FHighest 2 October, 2026
103.8 °F
Climate (2021–2026)
Murrieta/Temecula French Valley (9.3 miles)
Average Low 2021–2026
51.1 °FAverage 2021–2026
63.1 °FAverage High 2021–2026
78.2 °F