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Hazardous Weather Conditions
Current conditions at
Napa, Napa County Airport (KAPC)
Lat: 38.2075°NLon: 122.27944°WElev: 33.0ft.
Clear
95°F
35°C
| Humidity | 27% |
| Wind Speed | NA NA MPH |
| Barometer | 29.82 in (1009.82 mb) |
| Dewpoint | 56°F (13°C) |
| Visibility | 10.00 mi |
| Heat Index | 93°F (34°C) |
| Last update | 03 Oct 02:54 PM PDT |
Extended Forecast for
4 Miles E Saint Helena CA
Heat Advisory October 3, 03:10pm until October 7, 10:00pm
NOW until 10:00pm Wed
Heat Advisory
Tonight
Low: 65 °F
Increasing
CloudsSunday
High: 97 °F
Hot
Sunday Night
Low: 62 °F
Mostly Clear
Monday
High: 101 °F
Hot
Monday Night
Low: 62 °F
Mostly Clear
Tuesday
High: 101 °F
Hot
Tuesday Night
Low: 60 °F
Clear
Wednesday
High: 99 °F
Hot
Detailed Forecast
Tonight
Increasing clouds, with a low around 65. Calm wind.
Sunday
Mostly cloudy and hot, with a high near 97. Calm wind.
Sunday Night
Mostly cloudy during the early evening, then becoming mostly clear, with a low around 62. Calm wind.
Monday
Sunny and hot, with a high near 101. Calm wind.
Monday Night
Mostly clear, with a low around 62. Light and variable wind.
Tuesday
Sunny and hot, with a high near 101.
Tuesday Night
Clear, with a low around 60.
Wednesday
Sunny and hot, with a high near 99.
Wednesday Night
Mostly clear, with a low around 59.
Thursday
Sunny and hot, with a high near 98.
Thursday Night
Mostly clear, with a low around 57.
Friday
Mostly sunny, with a high near 85.
Friday Night
A slight chance of rain. Patchy fog. Otherwise, mostly clear, with a low around 52.
Saturday
Patchy fog. Otherwise, mostly sunny, with a high near 78.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
4 Miles E Saint Helena CA
38.5°N 122.4°W (Elev. 476 ft)
38.5°N 122.4°W (Elev. 476 ft)
1:30 pm PDT Oct 3, 2026
3pm PDT Oct 3, 2026-6pm PDT Oct 10, 2026
Additional Resources
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