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Whittier Narrows Reservoir, CA Weather Forecast
Whittier Narrows Reservoir, CA Weather Forecast Date: 202 PM PDT Thu Aug 20 2026
The area/counties/county of: Los Angeles County San Gabriel Valley, including: East Los Angeles, El Monte, Pasadena, Pomona, and San Gabriel.or toggle through each period.
Tonight... Partly cloudy. A 20% chance of showers and thunderstorms after midnight. Lows in the mid to upper 60s.
Friday... Partly cloudy in the morning then sunny. Highs 94 to 100.
Friday Night... Clear. Lows in the mid to upper 60s.
Saturday... Sunny. Highs 94 to 100.
Saturday Night... Clear. Lows in the mid to upper 60s.
Sunday... Sunny. Highs 94 to 100.
Sunday Night... Mostly clear. Lows around 70.
Monday... Sunny. Highs in the mid 90s.
Monday Night... Mostly clear. Lows around 70.
Tuesday... Sunny. Highs 95 to 100.
Tuesday Night... Mostly clear. Lows around 70.
Wednesday... Sunny. Highs 95 to 100.
Wednesday Night... Mostly clear. Lows around 70.
POP = Probability of Precipitation
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