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Saint Helena, California Weather

Saint Helena, California — live current conditions, hourly and 7-day forecasts, NWS alerts, aviation weather, radar and satellite imagery, tides and marine conditions for Saint 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 Saint Helena. Nearest NOAA tide station:

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✈️ Aviation Weather

Flight conditions near Saint 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 Saint 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 Saint Helena, California

Saint Helena rests in a valley sculpted by ancient forces, where the Napa River’s slow, deliberate curves mark the land. 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 a mosaic of vineyards and oak groves, rise on either side, their slopes catching the afternoon sun in shifting patterns of gold and shadow. The air here, particularly in the early morning, carries a crisp, clean scent, a blend of damp earth, ripening fruit, and the distant, faintest whisper of the Pacific. Buildings, many with a charming, weathered grace, line the main thoroughfare, their facades hinting at a history that unfolds with a gentle, unhurried pace. The story of Saint Helena is deeply intertwined with the fertile earth and the bounty it yields. Long before California’s celebrated wine country took shape, this land was home to indigenous peoples, their presence a subtle echo in the rustling leaves. Later, pioneers arrived, drawn by the promise of agriculture, and over time, the cultivation of grapes became the pulsing heart of Saint Helena’s economy. This dedication to viticulture has not only shaped its landscape but also its character, fostering a sense of quiet pride and an appreciation for the meticulous craft of winemaking. The world-renowned wineries that dot the surrounding hills are more than just businesses; they are landmarks, testaments to generations of dedication, and contribute to the sophisticated yet approachable atmosphere of Saint Helena.

LocationSaint 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