Weather for 94574 — Saint Helena, CA
Conditions and forecast for the exact centre of ZIP code 94574 (38.514, -122.462), not a nearby airport.
93°
Clear sky
- Feels like:
- 90°
- Humidity:
- 10%
- Wind:
- 7 mph
- Dew point:
- 28°
Source updated: 11:08:36 PM · WeatherSignal checked: 11:08:36 PM
Next 12 hours in 94574
11 PM
93°
0%
12 AM
90°
0%
1 AM
83°
0%
2 AM
76°
0%
3 AM
73°
0%
4 AM
72°
0%
5 AM
71°
0%
6 AM
70°
0%
7 AM
68°
0%
8 AM
67°
0%
9 AM
66°
0%
10 AM
66°
0%
7 day forecast for 94574
Today
93° / 93°
0% rain · 7 mph wind
Saturday, Oct 17
92° / 63°
0% rain · 7 mph wind
Sunday, Oct 18
88° / 58°
0% rain · 9 mph wind
Monday, Oct 19
70° / 50°
0% rain · 9 mph wind
Tuesday, Oct 20
65° / 55°
0% rain · 9 mph wind
Wednesday, Oct 21
64° / 52°
0% rain · 4 mph wind
Thursday, Oct 22
70° / 52°
0% rain · 5 mph wind
About ZIP code 94574
94574 covers Saint Helena in California. Forecasts on this page are generated for the coordinates at the centre of the ZIP code, so small differences from a nearby city forecast are expected and usually correct.
Closest cities with full forecast pages: Santa Rosa (15 mi), Fairfield (29 mi), Vallejo (30 mi), Richmond (40 mi).
Nearby ZIP codes
Severe weather warnings are issued by the National Weather Service for counties and polygons that may not line up with ZIP code boundaries. Always follow official warnings for your exact address.
Planning your week in Saint Helena 94574, California
- The warmest afternoon ahead is today, reaching about 93°F.
- The coldest night ahead dips to about 50°F.
- This is a dry stretch — most days show rain chances under 20%, good for outdoor plans.
Common questions about Saint Helena 94574, California weather
- How accurate is the Saint Helena 94574, California forecast?
- The next 48 hours are usually reliable on temperature and sky cover, with timing that can shift by an hour or two. Days three and four are dependable for the overall pattern. Beyond that, treat the numbers as a planning direction rather than a promise — we label confidence on every day so you can judge for yourself.
- What is the best day this week in Saint Helena 94574, California?
- No day in the current outlook has a rain chance above 40%, so conditions look favorable for outdoor plans across the week.
- Where does this forecast come from?
- Forecast values come from national weather model data, and official warnings come from the National Weather Service. We show the source and the last-updated time on every page, and we never invent a number the source did not publish — missing measurements are hidden, not guessed.
- How often is this page updated?
- The forecast refreshes whenever the source model publishes new data, typically several times a day. The freshness note near the top of the page shows exactly when the numbers you are looking at were issued.
More weather for Saint Helena 94574, California
- Current weather in Saint Helena 94574, California
- Saint Helena 94574, California hourly forecast
- Saint Helena 94574, California weather tomorrow
- Saint Helena 94574, California weekend weather
- Saint Helena 94574, California weather radar
- Saint Helena 94574, California severe weather alerts
- Best time to go outside in Saint Helena 94574, California
- What happened overnight in Saint Helena 94574, California
- How accurate is the Saint Helena 94574, California forecast?
- Saint Helena 94574, California monthly weather averages
Weather in nearby cities
- Santa Rosa, CA weather · about 15 miles away
- Fairfield, CA weather · about 29 miles away
- Vallejo, CA weather · about 30 miles away
- Richmond, CA weather · about 40 miles away
- Concord, CA weather · about 44 miles away
- Berkeley, CA weather · about 45 miles away