❮
Today Hourly 7 days 30 days September
❯

September 2026 Weather | Santa Clara, California

Today 9/18
Cloudy Night
Day 75°
Night 57°
0
Sat 9/19
Cloudy Weather
Day 82°
Night 57°
0
Sun 9/20
Cloudy Weather
Day 75°
Night 57°
2
Mon 9/21
Cloudy Weather
Day 75°
Night 57°
1
Tue 9/22
Cloudy Weather
Day 79°
Night 57°
0
Wed 9/23
Sunny Weather
Day 84°
Night 57°
1
Thu 9/24
Sunny Weather
Day 90°
Night 59°
2
Fri 9/25
Sunny Weather
Day 84°
Night 61°
0
Sat 9/26
Cloudy Weather
Day 79°
Night 57°
0
Sun 9/27
Cloudy Weather
Day 79°
Night 59°
0
Mon 9/28
Sunny Weather
Day 81°
Night 57°
0
Tue 9/29
Sunny Weather
Day 81°
Night 57°
0
Wed 9/30
Cloudy Weather
Day 79°
Night 59°
1

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