❮
Today Hourly 7 days 30 days May
❯

May 2026 Weather | Rialto, California

Today 5/16
Cloudy Weather
Day 73°
Night 55°
4
Sun 5/17
Cloudy Weather
Day 73°
Night 55°
4
Mon 5/18
Cloudy Weather
Day 84°
Night 55°
3
Tue 5/19
Cloudy Weather
Day 88°
Night 57°
1
Wed 5/20
Sunny Weather
Day 88°
Night 59°
0
Thu 5/21
Cloudy Weather
Day 88°
Night 57°
0
Fri 5/22
Cloudy Weather
Day 84°
Night 59°
3
Sat 5/23
Cloudy Weather
Day 82°
Night 57°
1
Sun 5/24
Cloudy Weather
Day 81°
Night 57°
1
Mon 5/25
Cloudy Weather
Day 81°
Night 57°
2
Tue 5/26
Cloudy Weather
Day 81°
Night 57°
0
Wed 5/27
Sunny Weather
Day 81°
Night 55°
0
Thu 5/28
Cloudy Weather
Day 82°
Night 57°
0
Fri 5/29
Cloudy Weather
Day 84°
Night 55°
25
Sat 5/30
Sunny Weather
Day 79°
Night 52°
20
Sun 5/31
Cloudy Weather
Day 79°
Night 52°
49

Explore U.S. Weather Trends

❄️ Coldest Cities in the U.S. – Live Temperature Rankings 🔥 Hottest Cities Today – Real-Time Heat Observations ⚠️ Active Weather Alerts – Warnings, Watches & Advisories 🌪️ Windiest Cities – Highest Sustained Wind Speeds 🌫️ Worst Air Quality – Cities with the Highest AQI 🍃 Best Air Quality – Cities with the Lowest AQI