Napa, CA Hourly Weather

Hour-by-Hour Forecast

Today's Weather Breakdown

Currently 61°F and clear. Today in Napa, CA: high of 83°F, low of 44°F with clear. Dry conditions expected throughout the day.

Currently61°F · Clear
Today's High83°F
Today's Low44°F
Rain Chance0%

Hour-by-Hour Temperature & Rain Probability

In Napa, CA today, temperatures start near 44°F in the early morning and climb toward a high of 83°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 Napa. 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 Napa 10-day forecast or check tomorrow's rain forecast for precipitation timing.

Hour-by-Hour Forecast for Napa, CA

TimeTempFeels LikeRainConditions
12:00 AM51°F51°F0%Clear
1:00 AM49°F49°F0%Clear
2:00 AM49°F48°F0%Clear
3:00 AM46°F46°F0%Clear
4:00 AM48°F48°F0%Clear
5:00 AM48°F48°F0%Clear
6:00 AM46°F46°F0%Clear
7:00 AM44°F44°F0%Clear
8:00 AM47°F47°F0%Clear
9:00 AM58°F58°F0%Clear
10:00 AM65°F65°F0%Clear
11:00 AM66°F66°F0%Clear
12:00 PM73°F73°F0%Clear
1:00 PM77°F77°F0%Clear
2:00 PM81°F80°F0%Clear
3:00 PM82°F80°F0%Clear
4:00 PM83°F81°F0%Clear
5:00 PM81°F80°F0%Clear
6:00 PM80°F80°F0%Partially cloudy
7:00 PM77°F77°F0%Partially cloudy
8:00 PM69°F69°F0%Partially cloudy
9:00 PM65°F65°F0%Partially cloudy
10:00 PM62°F62°F0%Partially cloudy
11:00 PM59°F59°F0%Partially cloudy

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