🇺🇸 Weather in Vallejo
Map Overlays:
Hourly Forecast for Vallejo
07:00
14°
1%
08:00
16°
1%
09:00
17°
0%
10:00
21°
0%
11:00
23°
0%
12:00
25°
0%
13:00
27°
0%
14:00
25°
0%
15:00
24°
0%
16:00
24°
0%
17:00
23°
0%
18:00
22°
0%
19:00
20°
0%
20:00
18°
0%
21:00
16°
1%
22:00
15°
1%
23:00
14°
1%
00:00
13°
1%
01:00
12°
2%
02:00
12°
2%
03:00
11°
2%
04:00
11°
2%
05:00
11°
2%
06:00
12°
2%
14-Day Forecast for Vallejo
2026-06-06
Sunny
28° /
13°
2026-06-07
Sunny
25° /
11°
2026-06-08
Patchy rain nearby
20° /
12°
2026-06-09
Patchy rain nearby
24° /
14°
2026-06-10
Sunny
30° /
11°
2026-06-11
Sunny
35° /
15°
2026-06-12
Sunny
35° /
17°
Additional Forecasts for Vallejo
Air Quality
💨 US EPA Index 1 (Good)
CO (Carbon Monoxide) 103.0 μg/m³
O₃ (Ozone) 63.0 μg/m³
NO₂ (Nitrogen Dioxide) 2.0 μg/m³
SO₂ (Sulphur Dioxide) 0.5 μg/m³
PM2.5 (Fine particles) 3.5 μg/m³
PM10 (Coarse particles) 5.2 μg/m³
Historical Weather
Weather Forecasts for Other Cities in United States
Weather in Vallejo — FAQ
Answers refreshed each request based on current conditions in Vallejo.
What is the weather like right now in Vallejo?
Right now in Vallejo, United States the temperature is 12.8°C (feels like 12.1°C), with sunny. Relative humidity is 66% and wind is 9.0 km/h.
What is today's high and low temperature in Vallejo?
Today's forecast high in Vallejo is 27.8°C and the overnight low is 12.6°C. The diurnal range — high minus low — depends on cloud cover; clear days swing more than overcast ones.
Will it rain in Vallejo today?
The chance of precipitation in Vallejo today is 0%. Forecast accuracy is highest within the next 6 hours and decreases steadily out to 14 days.
How often does the weather here update?
Current observations refresh every 15-60 minutes from the nearest monitoring stations operated by national meteorological agencies. The hourly forecast updates approximately every hour; the 7- and 14-day outlook is recomputed several times per day.
What does 'feels like' temperature mean?
Feels-like (apparent) temperature accounts for humidity, wind chill and direct sunshine — variables that change how the human body perceives heat or cold. On hot, humid days it can be 3-7°C above the actual reading; on cold windy days it can be 5-15°C below.
Why does the temperature in Vallejo differ from nearby cities?
Even short distances can change temperatures noticeably. Vallejo's reading reflects altitude, proximity to large bodies of water, urban heat island effects, and the exact location of the monitoring stations supplying the data. Coastal cities are typically milder and more humid than inland equivalents.