NWS Forecast for Sierra Madre CA

National Weather Service Forecast for: Sierra Madre CA
Issued by: National Weather Service Los Angeles/Oxnard, CA

Updated: 8:42 pm PDT Jul 12, 2026

Tonight Mostly Cloudy	Monday Mostly Sunny	Monday Night Increasing Clouds	Tuesday Patchy Fog then Sunny	Tuesday Night Mostly Clear	Wednesday Hot	Wednesday Night Mostly Clear	Thursday Hot	Thursday Night Partly Cloudy
Lo 65 °F	Hi 92 °F	Lo 66 °F	Hi 98 °F	Lo 68 °F	Hi 104 °F	Lo 69 °F	Hi 96 °F	Lo 65 °F

Extreme Heat Watch
Heat Advisory

Tonight	Mostly cloudy, with a low around 65. Calm wind.
Monday	Mostly sunny, with a high near 92. Calm wind becoming southwest around 5 mph in the afternoon.
Monday Night	Increasing clouds, with a low around 66. Southwest wind around 5 mph becoming calm in the evening.
Tuesday	Patchy fog before 11am. Otherwise, cloudy through mid morning, then gradual clearing and hot, with a high near 98. Heat index values as high as 113. Light south wind becoming southwest 5 to 10 mph in the morning.
Tuesday Night	Mostly clear, with a low around 68. Southwest wind around 5 mph becoming calm in the evening.
Wednesday	Sunny and hot, with a high near 104.
Wednesday Night	Mostly clear, with a low around 69.
Thursday	Sunny and hot, with a high near 96.
Thursday Night	Partly cloudy, with a low around 65.
Friday	Mostly sunny, with a high near 90.
Friday Night	Partly cloudy, with a low around 64.
Saturday	A slight chance of showers. Mostly sunny, with a high near 89.
Saturday Night	A slight chance of showers. Mostly clear, with a low around 63.
Sunday	Sunny, with a high near 88.

Forecast from NOAA-NWS for Sierra Madre CA.