Napa Junction, CA Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Napa Junction, CA in one place.
Mostly sunny. High near 74, with temperatures falling to around 72 in the afternoon. North northwest wind 0 to 5 mph.
Local Weather Overview
This forecast page for Napa Junction, CA is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Nov 5, 2026 11:23 PM PST.
The active forecast window currently covers Nov 6 to Nov 12, 2026 for Napa Junction, CA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Nov 6 to Nov 12, 2026
- Latest sync
- Nov 5, 2026 11:23 PM PST
- Forecast office
- MTR
- Source
- NOAA / NWS
Daily Outlook
This Week in Napa Junction
Friday looks like the warmest upcoming period in Napa Junction at 74 degrees F.
Saturday Night is the coolest period ahead with temperatures near 42 degrees F.
The strongest winds are forecast for Thursday at about 1 to 6 mph SW.
Precipitation is mentioned in 2 upcoming forecast periods.
Forecast Details
- Last updated
- Nov 5, 2026 11:23 PM PST
- Coverage
- 7 days
- Time zone
- America/Los_Angeles
- Forecast office
- MTR
- Radar station
- KDAX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Clear, with a low around 44. North northwest wind around 1 mph.
Mostly sunny, with a high near 71. East wind 0 to 3 mph.
Patchy fog after 5am. Mostly clear, with a low around 42. West wind around 2 mph.
Patchy fog before 8am. Mostly sunny, with a high near 71.
Patchy fog after 4am. Partly cloudy, with a low around 44.
Areas of fog before 8am. Mostly sunny, with a high near 69.
Patchy fog after 5am. Mostly clear, with a low around 44.
Patchy fog before 8am. Sunny, with a high near 72.
Patchy fog after 5am. Mostly clear, with a low around 45.
Areas of fog before 9am. Mostly sunny, with a high near 69.
A chance of rain between 10pm and 5am, then a chance of rain and patchy fog. Mostly cloudy, with a low around 45.
A chance of rain and patchy fog before 4pm. Partly sunny, with a high near 66.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Nov 6
|
Mostly Sunny
|
74°F |
0 to 5 mph
NNW
|
|
Friday Night
Nov 6
|
Clear
|
44°F |
1 mph
NNW
|
|
Saturday
Nov 7
|
Mostly Sunny
|
71°F |
0 to 3 mph
E
|
|
Saturday Night
Nov 7
|
Mostly Clear then Patchy Fog
|
42°F |
2 mph
W
|
|
Sunday
Nov 8
|
Patchy Fog then Mostly Sunny
|
71°F |
2 mph
WNW
|
|
Sunday Night
Nov 8
|
Partly Cloudy then Patchy Fog
|
44°F |
2 mph
W
|
|
Monday
Nov 9
|
Areas Of Fog then Mostly Sunny
|
69°F |
0 to 3 mph
WNW
|
|
Monday Night
Nov 9
|
Mostly Clear then Patchy Fog
|
44°F |
0 to 3 mph
WNW
|
|
Tuesday
Nov 10
|
Patchy Fog then Sunny
|
72°F |
3 mph
WNW
|
|
Tuesday Night
Nov 10
|
Mostly Clear then Patchy Fog
|
45°F |
2 mph
W
|
|
Veterans Day
Nov 11
|
Areas Of Fog then Mostly Sunny
|
69°F |
0 to 5 mph
E
|
|
Wednesday Night
Nov 11
|
Chance Light Rain
|
45°F |
3 mph
SSW
|
|
Thursday
Nov 12
|
Chance Light Rain
|
66°F |
1 to 6 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Napa Junction.