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Today Hourly 7 days 30 days March
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March 2026 Weather | Ontario, California

Today 3/17
Hot Day
Day 99°
Night 63°
0
Wed 3/18
Sunny Weather
Day 97°
Night 63°
0
Thu 3/19
Hot Day
Day 99°
Night 64°
1
Fri 3/20
Hot Day
Day 97°
Night 63°
1
Sat 3/21
Cloudy Weather
Day 91°
Night 59°
5
Sun 3/22
Cloudy Weather
Day 86°
Night 57°
6
Mon 3/23
Cloudy Weather
Day 84°
Night 57°
0
Tue 3/24
Sunny Weather
Day 82°
Night 55°
0
Wed 3/25
Sunny Weather
Day 86°
Night 55°
0
Thu 3/26
Cloudy Weather
Day 90°
Night 55°
1
Fri 3/27
Cloudy Weather
Day 86°
Night 57°
0
Sat 3/28
Cloudy Weather
Day 84°
Night 55°
0
Sun 3/29
Cloudy Weather
Day 82°
Night 54°
0
Mon 3/30
Cloudy Weather
Day 73°
Night 48°
10
Tue 3/31
Sunny Weather
Day 77°
Night 50°
20

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