Altadena, CA Hourly Weather

Hour-by-Hour Forecast

Today's Weather Breakdown

Currently 65°F and clear. Today in Altadena, CA: high of 82°F, low of 57°F with clear. Dry conditions expected throughout the day.

Currently65°F · Clear
Today's High82°F
Today's Low57°F
Rain Chance0%

Hour-by-Hour Temperature & Rain Probability

In Altadena, CA today, temperatures start near 57°F in the early morning and climb toward a high of 82°F in the afternoon. No significant rain is expected — good conditions for outdoor plans throughout the day.

Reading the Hourly Weather Forecast

The hour-by-hour table shows temperature, feels-like temperature, precipitation probability, wind speed, humidity, and UV index for each hour of the day in Altadena. Rain probability above 40% for a given hour indicates a meaningful chance of precipitation during that window. UV index above 6 means sun protection is recommended for extended time outdoors.

Hourly forecasts are updated from live weather station data. For the full multi-day picture, see the Altadena 10-day forecast or check tomorrow's rain forecast for precipitation timing.

Hour-by-Hour Forecast for Altadena, CA

TimeTempFeels LikeRainConditions
12:00 AM66°F66°F0%Clear
1:00 AM65°F65°F0%Clear
2:00 AM63°F63°F0%Clear
3:00 AM60°F60°F0%Clear
4:00 AM60°F60°F0%Clear
5:00 AM58°F58°F0%Clear
6:00 AM57°F57°F0%Clear
7:00 AM58°F58°F0%Clear
8:00 AM62°F62°F0%Clear
9:00 AM68°F68°F0%Clear
10:00 AM69°F69°F0%Clear
11:00 AM73°F73°F0%Partially cloudy
12:00 PM76°F76°F0%Partially cloudy
1:00 PM79°F79°F0%Partially cloudy
2:00 PM82°F80°F0%Partially cloudy
3:00 PM81°F79°F0%Partially cloudy
4:00 PM80°F80°F0%Partially cloudy
5:00 PM78°F78°F0%Clear
6:00 PM75°F75°F0%Clear
7:00 PM71°F71°F0%Clear
8:00 PM72°F72°F0%Clear
9:00 PM71°F71°F0%Clear
10:00 PM68°F68°F0%Clear
11:00 PM65°F65°F0%Clear

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