Weather WorldWinchester, CA 7-Day Night Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Weather Quote O' the Day
Winchester, CA Weather Forecast
Winchester, CA Weather Forecast Date: 1257 AM PST Fri Nov 06 2026
The area/counties/county of: San Bernardino And Riverside County Valleys, including the cities of: Riverside, San Bernardino, Ontario, Moreno Valley, Fontana, Rancho Cucamonga, and Corona.or toggle through each period.
Today... Sunny. Highs 75 to 82. Areas of winds north 10 to 20 mph with gusts to 30 mph.
Tonight... Mostly clear. Lows 52 to 58. Areas of winds north 10 to 15 mph. Gusts to 25 mph...Becoming 30 mph overnight.
Saturday... Sunny. Highs 78 to 85. Areas of winds north 10 to 20 mph. Gusts to 35 mph...Becoming 30 mph in the afternoon.
Saturday Night... Clear. Lows 54 to 58. Areas of winds east 10 to 15 mph. Gusts to 25 mph in the evening.
Sunday... Sunny. Highs 80 to 87. Areas of winds east to 10 mph in the morning becoming light.
Sunday Night... Mostly clear. Lows 55 to 59.
Monday... Mostly sunny. Highs 79 to 85.
Monday Night... Mostly clear in the evening...Becoming partly cloudy. Lows 54 to 58.
Tuesday... Mostly sunny. Highs 78 to 84.
Tuesday Night... Clear. Lows 54 to 58.
Veterans Day... Sunny. Highs 78 to 84.
Wednesday Night... Clear. Lows 54 to 57.
POP = Probability of Precipitation
Winchester Radar Loop
Use the map search tool if you want to place a location marker on the radar map...