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St. Helena, California Weather

St. Helena, California — live current conditions, hourly and 7-day forecasts, NWS alerts, aviation weather, radar and satellite imagery, tides and marine conditions for St. Helena, Napa County.

🌡️ Current Conditions
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24-Hour Forecast
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Current Conditions Detail
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7-Day Forecast
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🌊 Marine & Fishing

Tides, marine forecast and fishing conditions near St. Helena. Nearest NOAA tide station:

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✈️ Aviation Weather

Flight conditions near St. Helena — sourced from the FAA Aviation Weather Center. Nearest reporting station: locating…

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NWS Extended Forecast
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📡 Precipitation Radar

Live animated radar for St. Helena and surroundings — RainViewer.

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🛰️ Satellite Imagery

NOAA GOES-16 GEOCOLOR — live animated loop updated every 10 minutes. Shows cloud cover, storm systems and weather patterns across the continental US.

NOAA GOES-16 CONUS GEOCOLOR satellite animated loop
🛰️ GEOCOLOR loop 🌡️ Infrared (IR) 🌀 NHC Hurricane Satellite 🔗 NOAA Full Viewer

Source: NOAA/NESDIS GOES-East · Public domain · Auto-updates on page reload

🌙 Astronomy
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About St. Helena, California

St. Helena unfolds with a quiet grace in the heart of Napa Valley, a landscape sculpted by time and the persistent sun. It lies 13.9 miles east-north-east of Santa Rosa, CA (from Santa Rosa, CA: bearing 71°T), and is situated 7.8 miles south-east of Calistoga. Rolling hills, cloaked in the muted greens of vineyards, embrace the town, their slopes catching the golden light of afternoon. The air, carrying the faint, sweet perfume of ripening grapes and damp earth, hums with the gentle activity of a place that knows its own pace. Streets lined with historic buildings, their facades weathered to a soft patina, speak of a past that is not forgotten but rather woven into the present, creating a character that is both enduring and welcoming. This Californian gem, St. Helena, thrives on the bounty of its fertile soil, its economy intrinsically linked to the world-renowned wines produced in the surrounding valley. The legacy of agriculture is palpable, a deep-rooted tradition that has shaped its identity and drawn visitors from across the globe, eager to sample its celebrated vintages. Beyond the vineyards, the town retains echoes of its early days, when it served as a vital stop along the stagecoach routes, a place of respite and commerce. Today, its charm lies in this harmonious blend of agricultural heritage and a sophisticated, yet unpretentious, way of life, where the rhythm of the seasons dictates the pulse of daily existence.

LocationSt. Helena, Napa County, California
Coordinates38.505187°N, 122.470258°W
TimezonePacific Time (America/Los_Angeles)
ZIP Code(s)94574
Area Code510
Page generatedJune 2026
Weather dataOpen-Meteo (open-source), NOAA National Weather Service