Hourly Weather | Tomorrow Thursday, August 13, 2026
Active Weather Warnings
Napa, California
12 AM
Cloudy Night
61°
Feels Like 57°
0
Humidity: 88%
UV Index: 0
Wind: 8 mph
1 AM
Cloudy Night
61°
Feels Like 57°
0
Humidity: 88%
UV Index: 0
Wind: 8 mph
2 AM
Cloudy Night
59°
Feels Like 57°
7
Humidity: 89%
UV Index: 0
Wind: 8 mph
3 AM
Cloudy Night
59°
Feels Like 55°
7
Humidity: 89%
UV Index: 0
Wind: 8 mph
4 AM
Cloudy Night
59°
Feels Like 55°
7
Humidity: 90%
UV Index: 0
Wind: 8 mph
5 AM
Cloudy Weather
59°
Feels Like 55°
7
Humidity: 90%
UV Index: 0
Wind: 8 mph
6 AM
Cloudy Weather
57°
Feels Like 55°
7
Humidity: 92%
UV Index: 0
Wind: 8 mph
7 AM
Cloudy Weather
59°
Feels Like 57°
5
Humidity: 91%
UV Index: 0
Wind: 7 mph
8 AM
Cloudy Weather
61°
Feels Like 57°
1
Humidity: 89%
UV Index: 1
Wind: 8 mph
9 AM
Cloudy Weather
61°
Feels Like 61°
1
Humidity: 86%
UV Index: 1
Wind: 8 mph
10 AM
Cloudy Weather
63°
Feels Like 61°
1
Humidity: 82%
UV Index: 2
Wind: 9 mph
11 AM
Cloudy Weather
63°
Feels Like 63°
1
Humidity: 79%
UV Index: 3
Wind: 10 mph
12 PM
Cloudy Weather
64°
Feels Like 68°
1
Humidity: 75%
UV Index: 5
Wind: 12 mph
1 PM
Cloudy Weather
66°
Feels Like 72°
1
Humidity: 71%
UV Index: 9
Wind: 13 mph
2 PM
Cloudy Weather
70°
Feels Like 73°
0
Humidity: 68%
UV Index: 8
Wind: 13 mph
3 PM
Cloudy Weather
70°
Feels Like 73°
0
Humidity: 64%
UV Index: 6
Wind: 14 mph
4 PM
Cloudy Weather
70°
Feels Like 70°
0
Humidity: 67%
UV Index: 4
Wind: 14 mph
5 PM
Cloudy Weather
68°
Feels Like 68°
0
Humidity: 69%
UV Index: 3
Wind: 14 mph
6 PM
Cloudy Weather
66°
Feels Like 66°
0
Humidity: 71%
UV Index: 2
Wind: 13 mph
7 PM
Cloudy Weather
64°
Feels Like 63°
0
Humidity: 74%
UV Index: 1
Wind: 12 mph
8 PM
Cloudy Weather
63°
Feels Like 59°
0
Humidity: 81%
UV Index: 0
Wind: 10 mph
9 PM
Cloudy Night
61°
Feels Like 57°
0
Humidity: 84%
UV Index: 0
Wind: 10 mph
10 PM
Cloudy Night
61°
Feels Like 57°
0
Humidity: 85%
UV Index: 0
Wind: 9 mph
11 PM
Cloudy Night
61°
Feels Like 57°
0
Humidity: 86%
UV Index: 0
Wind: 9 mph

Weather Alerts and Warnings for Napa

Minor Expected Likely

Coastal Flood Advisory

Coastal Flood Advisory issued August 11 at 11:14PM PDT until August 13 at 2:00AM PDT by NWS San Francisco CA
Aug 11, 11:14 PM Aug 13, 2:00 AM
WHAT: Up to 1.4 ft of inundation above ground level is
possible in low-lying areas near shorelines and tidal
waterways.

WHERE: Bayshore locations along the San Francisco Bay, San
Pablo Bay, and Monterey Bay.

WHEN: Until 2 AM PDT Thursday.

IMPACTS: Flooding of lots, parks, and roads with only
isolated road closures expected.

ADDITIONAL DETAILS: At the San Francisco tidal gauge, high tide
is expected to be 1.4 ft above normal (7.24 ft MLLW) at 11:49
PM Wednesday 8/12. These predictions include both astronomical
tides and roughly 3-6 inches of additional water mainly from a
combination of thermal expansion and accumulated sea level rise
since the tidal datum was established (1983- 2001). High tide
varies up to 90 minutes earlier or later along the Pacific Coast
and through the San Francisco Bay, respectively.
+ Read More
If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.
Updated: Aug 12, 7:06 AM Source: NWS Alert