Focused Live Outlook
Lightning live risk in St. Helena, CA
Thunderstorm and lightning conditions for St. Helena, CA over the next 6–24 hours.
Updated just now. Live data typically refreshes every 5–40 minutes.
Thunderstorm alerts
0
SPC Day 1
No Day 1 signal
Current precip
0.0 mm
Humidity
100%
Historical baseline
Lightning baseline: 0/100 (Low).
Live weather
Current conditions near St. Helena, CA
Temp
58°
🌫️Fog
Feels like
59°
Feels-like temp
Humidity
100%
Relative
Wind
3 mph
10 m avg
Pressure
1009 mb
Sea-level
Rain
0 mm
Clouds 100%
Next few hours
🌫️4 AM
57°
0% rain
🌫️5 AM
56°
0% rain
🌫️6 AM
55°
0% rain
🌫️7 AM
54°
0% rain
🌫️8 AM
56°
0% rain
⛅9 AM
66°
0% rain
Next few days
🌫️Sun
104° / 54°
0% rain
🌫️Mon
96° / 55°
0% rain
☀️Tue
99° / 58°
1% rain
☁️Wed
92° / 56°
1% rain
☁️Thu
88° / 52°
1% rain
⛅Fri
91° / 54°
2% rain
☁️Sat
91° / 54°
0% rain
Live weather alerts
Active NWS advisories near St. Helena, CA
Coastal Flood Advisory
Effective local time
Coastal Flood Advisory issued August 8 at 9:29PM PDT until August 13 at 2:00AM PDT by NWS San Francisco CA
San Francisco; North Bay Interior Valleys; San Francisco Bay Shoreline; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
Source: NWS alerts feed.
Powered by NOAA, NHC, FEMA, USGS, and NSSL data. Updated every 5–40 minutes in the full product. Demo content only — not for official warning decisions.
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Live hazard map
Radar, alerts, systems, SPC, gauges · St. Helena, CAToggle live overlays with the toolbar to focus on current radar, alerts, and outlooks.