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Topanga, CA Weather Forecast
Topanga, CA Weather Forecast Date: 1129 PM PDT Sun Sep 20 2026
The area/counties/county of: Eastern Santa Monica Mountains Recreational Area, including: Topanga.or toggle through each period.
Tonight... Mostly cloudy. Lows in the mid 50s to lower 60s.
Monday... Cloudy in the morning then partly cloudy. Highs in the 70s to around 80 except the mid to upper 60s closer to the coast.
Monday Night... Mostly clear in the evening then mostly cloudy. Lows in the 50s to lower 60s.
Tuesday... Low clouds and fog in the morning then sunny. Highs in the 70s to around 80.
Tuesday Night... Mostly clear. Lows in the mid 50s to mid 60s.
Wednesday... Sunny except for patchy low clouds and fog in the morning. Highs in the 80s to lower 90s.
Wednesday Night... Mostly clear in the evening then partly cloudy. Lows in the upper 50s to mid 60s.
Thursday... Sunny except for patchy low clouds and fog in the morning. Highs in the 80s to around 90.
Thursday Night... Clear in the evening then partly cloudy. Lows in the lower to mid 60s.
Friday... Partly cloudy in the morning then sunny. Highs in the upper 70s to mid 80s.
Friday Night... Mostly clear in the evening then partly cloudy. Lows in the mid 60s.
Saturday... Partly cloudy in the morning then sunny. Highs in the upper 70s to mid 80s.
Saturday Night... Mostly clear in the evening then partly cloudy. Lows in the lower to mid 60s.
POP = Probability of Precipitation
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