Showers and thunderstorms tonight in Rialto, CA, with a low around 61. Chances of rain run around 79% tonight. Thursday looks showers and thunderstorms, with a high near 68. Over the next 6 days, highs range from 68 to 80 with overnight lows from 55 to 58.

The National Weather Service 7-day forecast for your location, with daily and hourly temperature, chance of precipitation, wind, and conditions.