Weather
What today is good for in Mission Viejo, hour by hour, the week ahead, and the coast. From the National Weather Service.
This hour
National Weather Service forecast for Mission ViejoLoading…
Good day for…
A rule of thumb from the forecastLoading…
Hour by hour
Next 12 hoursLoading…
The week ahead
Daytime high, overnight lowLoading…
Beach and surf
Orange County coastLoading…
What the flags meanBeach, fire and emergency. Tap to open
Lifeguard beach flags
- Green. Light conditions. Rip currents are still possible.
- Yellow. Larger surf or stronger currents. Swim with caution.
- Red. Hazardous: strong rip currents or large waves. Expert swimmers only.
- Black ball, or yellow with black circles. No surfboards or skimboards in the swim area.
- Purple. Marine life such as stingrays.
Lifeguards set the flag on the sand and can change it during the day, and the meaning can differ a little by city, so read the sign at the tower. No beach publishes today’s flag online. San Clemente tower boards are updated about 8 AM, noon and 4 PM, and its surf report line is 949-492-1011. Water quality: ocbeachinfo.com. Sources: San Clemente Marine Safety and Newport Beach lifeguards.
Fire weather alerts
- Red Flag Warning
- Weather that may cause extreme fire behavior within 24 hours: strong wind, low humidity, warm and dry.
- Fire Weather Watch
- Those conditions may develop in the next 12 to 72 hours.
These are National Weather Service alerts, not flags you will see on a pole. The Fire box above shows one as soon as it is issued for Mission Viejo. Fire updates: Orange County Fire Authority.
Emergency alerts
- Warning
- Dangerous weather is happening or about to. Act now.
- Watch or advisory
- Conditions are possible, or may cause trouble. Stay aware.
For county emergency and evacuation alerts by call, text and email, sign up for AlertOC. In an emergency, call 911.
Source: National Weather Service (api.weather.gov), San Diego forecast office, for the Mission Viejo grid point, and the NWS Surf Zone Forecast for Orange County Coastal Areas. Forecasts change. This page reads the data in your browser each time it opens. Mission Viejo Post does not issue weather or emergency warnings.