10-day forecast for Napa, CA: 55° to 94°, with precipitation expected on 0 days. The table below breaks each day into morning, afternoon, evening and overnight.
94°
Best day: Sunday, August 9
80°
Worst day: Thursday, August 13
Tap any day below to see morning, afternoon, evening and overnight.
Sun, 0994° / 60°0
Morning68°feels 67°
Afternoon94°feels 89°
Evening74°feels 73°
Overnight61°feels 61°
94 °
Napa, Sunday, 9 August
Clear. High 94°, low 60°.
Pressure29.80 inHg
Wind4.8 mph SW
Humidity20%
Visibility6.2 mi
Dew point46°
Mon, 1085° / 58°0
Morning64°feels 63°
Afternoon84°feels 82°
Evening67°feels 66°
Overnight60°feels 60°
85 °
Napa, Monday, 10 August
Clear. High 85°, low 58°.
Pressure29.85 inHg
Wind5 mph SW
Humidity34%
Visibility6.2 mi
Dew point49°
Tue, 1188° / 55°0
Morning62°feels 62°
Afternoon88°feels 85°
Evening68°feels 68°
Overnight56°feels 55°
88 °
Napa, Tuesday, 11 August
Clear. High 88°, low 55°.
Pressure29.91 inHg
Wind4.9 mph S
Humidity31%
Visibility6.2 mi
Dew point49°
Wed, 1281° / 56°0
Morning62°feels 61°
Afternoon81°feels 81°
Evening64°feels 63°
Overnight56°feels 55°
81 °
Napa, Wednesday, 12 August
Clear. High 81°, low 56°.
Pressure29.85 inHg
Wind5.5 mph S
Humidity39%
Visibility6.2 mi
Dew point51°
Thu, 1380° / 56°0
Morning66°feels 66°
Afternoon76°feels 76°
Evening65°feels 65°
Overnight59°feels 59°
80 °
Napa, Thursday, 13 August
Mostly clear. High 80°, low 56°.
Pressure29.85 inHg
Wind7.3 mph S
Humidity43%
Visibility—
Dew point52°
Fri, 1485° / 56°0
Morning69°feels 68°
Afternoon82°feels 81°
Evening67°feels 67°
Overnight60°feels 59°
85 °
Napa, Friday, 14 August
Clear. High 85°, low 56°.
Pressure29.91 inHg
Wind7.9 mph S
Humidity33%
Visibility—
Dew point50°
Sat, 1586° / 56°0
Morning69°feels 68°
Afternoon83°feels 81°
Evening67°feels 66°
Overnight59°feels 59°
86 °
Napa, Saturday, 15 August
Clear. High 86°, low 56°.
Pressure30.00 inHg
Wind8.1 mph SW
Humidity31%
Visibility—
Dew point49°
Sun, 1685° / 55°0
Morning68°feels 67°
Afternoon82°feels 80°
Evening66°feels 65°
Overnight58°feels 58°
85 °
Napa, Sunday, 16 August
Overcast. High 85°, low 55°.
Pressure30.03 inHg
Wind7.6 mph SW
Humidity27%
Visibility—
Dew point45°
Mon, 1780° / 56°0
Morning66°feels 65°
Afternoon78°feels 78°
Evening66°feels 65°
Overnight60°feels 59°
80 °
Napa, Monday, 17 August
Overcast. High 80°, low 56°.
Pressure30.03 inHg
Wind7.1 mph SW
Humidity36%
Visibility—
Dew point48°
About this forecast
How reliable is a 10-day forecast?
The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.
What does the time-of-day table show?
Temperature in Napa, CA around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.
How is the best day chosen?
We weigh the daytime high against precipitation: a warm, dry day scores highest.