Saint Helena, CA

Current conditions, hourly and 7-day forecast, and live radar for Saint Helena, CA 94574. Right now: partly cloudy, 68°F. Data from the National Weather Service.

• Tonight: Partly cloudy, with a low around 68. Northwest wind around 2 mph.
• Thursday: Mostly sunny. High near 95, with temperatures falling to around 93 in the afternoon. Southwest wind 0 to 6 mph.
• Thursday Night: Partly cloudy, with a low around 57. West southwest wind 0 to 5 mph.
• Friday: Sunny, with a high near 89. Southwest wind 0 to 7 mph, with gusts as high as 18 mph.
• Friday Night: Mostly clear, with a low around 54. West southwest wind 3 to 7 mph, with gusts as high as 18 mph.
• Saturday: Mostly sunny, with a high near 80.