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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
84°F
29°C
| Humidity | 32% |
| Wind Speed | E 3 MPH |
| Barometer | 29.79 in (1008.81 mb) |
| Dewpoint | 52°F (11°C) |
| Visibility | 10.00 mi |
| Heat Index | 82°F (28°C) |
| Last update | 03 Oct 07:15 PM PDT |
Extended Forecast for
4 Miles SSE Saint Helena CA
Heat Advisory October 3, 07:35pm until October 7, 10:00pm
NOW until 10:00pm Wed
Heat Advisory
Tonight
Low: 65 °F
Increasing
CloudsSunday
High: 99 °F
Hot
Sunday Night
Low: 63 °F
Mostly Clear
Monday
High: 102 °F
Hot
Monday Night
Low: 63 °F
Mostly Clear
Tuesday
High: 102 °F
Hot
Tuesday Night
Low: 60 °F
Clear
Wednesday
High: 100 °F
Hot
Detailed Forecast
Tonight
Increasing clouds, with a low around 65. Calm wind.
Sunday
Mostly cloudy and hot, with a high near 99. Calm wind.
Sunday Night
Mostly cloudy during the early evening, then becoming mostly clear, with a low around 63. Calm wind.
Monday
Sunny and hot, with a high near 102. Calm wind.
Monday Night
Mostly clear, with a low around 63. Calm wind.
Tuesday
Sunny and hot, with a high near 102.
Tuesday Night
Clear, with a low around 60.
Wednesday
Sunny and hot, with a high near 100.
Wednesday Night
Mostly clear, with a low around 59.
Thursday
Sunny and hot, with a high near 99.
Thursday Night
Mostly clear, with a low around 58.
Friday
Mostly sunny, with a high near 87.
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 79.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
4 Miles SSE Saint Helena CA
38.45°N 122.41°W (Elev. 157 ft)
38.45°N 122.41°W (Elev. 157 ft)
1:30 pm PDT Oct 3, 2026
7pm PDT Oct 3, 2026-6pm PDT Oct 10, 2026
Additional Resources
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