Winnetka Weather Forecast
- 66
- 96
Slight Chance Thunderstorms
- 63
- 89
Mostly Cloudy
- 58
- 84
Patchy Fog
- 62
- 86
Mostly Sunny
- 63
- 89
Mostly Sunny
- 64
- 91
Mostly Sunny
Today 11 Aug Western San Fernando Valley
Partly cloudy in the Morning, then sunny with a 20 percent chance of Showers and Thunderstorms in the afternoon. Highs in the upper 80s to mid 90s.
Tonight 11 Aug Western San Fernando Valley
Mostly clear in the evening then mostly cloudy. Lows in the lower to mid 60s.
Winnetka Temperature Statistics
August Temperature
Van Nuys, Van Nuys Airport (4.3 miles)
Lowest 4 August, 2026
66.7 °FAverage August
82.4 °FHighest 8 August, 2026
101.6 °F
Climate (2021–2026)
Van Nuys, Van Nuys Airport (4.3 miles)
Average Low 2021–2026
56.5 °FAverage 2021–2026
67.6 °FAverage High 2021–2026
79.5 °F