Cupertino, California Weather Forecast
Today in Cupertino: slight rain with a high near 64°F and a low around 53°F. Rain chance 58%. No day tops a 20% rain chance through Wednesday. Warming trend: highs climb from 64°F today to 75°F by Sunday.
Forecast updated 7:05 PM PDT, Oct 22
Active Weather Alerts
7-Day Forecast for Cupertino
Today 10/22
58%
64°53°
Fri 10/23
69°52°
Sat 10/24
72°47°
Sun 10/25
75°50°
Mon 10/26
72°50°
Tue 10/27
72°48°
Wed 10/28
70°49°
Next 24 Hours
| Now | 11 PM | Fri12 AM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | 7 AM | 8 AM | 9 AM | 10 AM | 11 AM | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | 7 PM | 8 PM | 9 PM | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sky |  |  | | | | | | | | | | | | | | | | | | | | |  | |
| Temp | 58° | 58° | 57° | 56° | 55° | 55° | 54° | 53° | 53° | 52° | 53° | 56° | 59° | 61° | 64° | 66° | 67° | 68° | 69° | 67° | 65° | 61° | 59° | 57° |
| Rain | 8% | 3% | 4% | 3% | 2% | 1% | 1% | 1% | 1% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% |
| Wind | NW 5 | NW 5 | NW 4 | NW 3 | NW 2 | NW 2 | N 2 | WSW 1 | W 1 | NNE 1 | NE 1 | N 2 | N 3 | NNW 5 | NNW 6 | NNW 7 | NNW 8 | NNW 9 | NNW 9 | NNW 8 | NW 7 | NW 6 | NW 6 | NW 5 |
Growing Conditions
Growing degree days
3,535
since Apr 1, base 50°F
Rain, last 30 days
0.00 in
model analysis
Rain, year to date
13.76 in
since Jan 1
2-inch soil temperature
62°F
yesterday, daily average
Reference ET, last 7 days
0.91 in
FAO-56 grass reference
Through Oct 21. Season totals use model analysis for this point and update every morning.
Soil, ET and spray tools for Cupertino →
Current Stats & Observations
NWS Forecast
About Cupertino Weather
Cupertino sits at about 312 feet above sea level in Santa Clara County, California. About 59,276 people live in the Cupertino area. Official forecasts and warnings for the area come from the National Weather Service MTR office, and the nearest NEXRAD radar site is KMUX. The city is in USDA plant hardiness zone 9b, where the coldest winter night typically falls between 25 to 30°F. Freezing temperatures are rare here.
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