Porterville, CA - Weather forecast from Theweather.com. Winds ESE at 5 to 10 mph.. Tonight Some clouds. Low 43F. Porterville 5 day forecast with weather outlook providing day and night summary including precipitation, high and low temperatures presented in Fahrenheit and Celsius, sky conditions, rain chance, sunrise, sunset, wind chill, and wind speed with direction. Porterville CA 5 Day Weather Forecast from LocalConditions.com. It is 35 degrees fahrenheit, or 2 degrees celsius and feels like 30 degrees fahrenheit. Monthly: 1981-2010 normals Winds ESE at 5 to 10 mph. Winds light and variable.. Tonight. Hour by hour weather updates and local hourly weather forecasts for Porterville, California including, temperature, precipitation, dew point, humidity and wind The barometric pressure is 30.25 - measured by inch of mercury units - and is rising since its last observation. 7-hour rain and snow forecast for Porterville, CA with 24-hour rain accumulation, radar and satellite maps of precipitation by Weather Underground. Updated: January 21, 2021 @ 12:52 pm Porterville, CA (93257) Today. . Find the most current and reliable 14 day weather forecasts, storm alerts, reports and information for Porterville, CA, US with The Weather Network. Low 42F. Porterville, CA (93257) Today. Partly cloudy this evening with more clouds for overnight. Monthly averages Porterville Longitude: -119.063, Latitude: 36.0296 Average weather Porterville, CA - 93257. Station Data. Current conditions at Porterville, Porterville Municipal Airport (KPTV) Lat: 36.03333°NLon: 119.06667°WElev: 443ft. 39.9 °F Now Feels Like 32.2 °F Porterville, Porterville Municipal Airport (3.6 miles) Relative Humidity 67% Porterville, Porterville Municipal Airport (3.6 miles); Rain Today 0in (0in Last Hour) Porterville, Porterville Municipal Airport (3.6 miles) Wind SE 6.9mph Porterville, Porterville Municipal Airport (3.6 miles) Weather conditions with updates on temperature, humidity, wind speed, snow, pressure, etc. Weather forecast, weather radar, 5-day forecast, 7-day forecast, 10-day forecast and natural disaster alerts of Porterville, CA. Sunny. High 69F. The current weather report for Porterville CA, as of 3:56 AM PST TUE NOV 10 2020, has a sky condition of Fair with the visibility of 10.00 miles. Latest weather News: Cold, wet conditions affects Sequoia Complex