Los Angeles Overnight Lows to Hit Mid-60s on Sep. 22
Los Angeles Overnight Lows to Hit Mid-60s on Sep. 22
US · Published Sep 20, 2026
According to recent guidance from the National Weather Service and weather models, overnight temperatures in Los Angeles on September 22, 2026, are expected to range between 63°F and 67°F (17°C to 19°C).
This forecast is attributed to a persistent marine layer and moderate onshore flow from the Pacific Ocean, which will limit radiative cooling.

Impact & Risks

The expected overnight temperatures in Los Angeles are not anticipated to pose any significant risks to residents or infrastructure. The forecasted range of 63°F to 67°F (17°C to 19°C) is typical for this time of year and aligns with historical averages. However, the presence of a marine layer and potential fog may reduce visibility during the early morning hours, which could impact drivers and early commuters. No extreme weather conditions, such as strong winds or heatwaves, are expected during this period.

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