Union City, California Weather Forecast
Today in Union City: slight rain showers with a high near 63°F and a low around 56°F. Rain chance 62%. No day tops a 20% rain chance through Wednesday. Warming trend: highs climb from 63°F today to 72°F by Sunday.
Forecast updated 7:05 PM PDT, Oct 22
Active Weather Alerts
7-Day Forecast for Union City
Today 10/22
62%
63°56°
Fri 10/23
68°55°
Sat 10/24
70°48°
Sun 10/25
72°50°
Mon 10/26
69°52°
Tue 10/27
69°50°
Wed 10/28
67°51°
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 | 59° | 59° | 59° | 58° | 58° | 57° | 57° | 57° | 56° | 56° | 56° | 57° | 59° | 61° | 63° | 65° | 66° | 68° | 68° | 66° | 63° | 59° | 57° | 56° |
| Rain | 5% | 4% | 3% | 2% | 2% | 1% | 1% | 1% | 1% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% |
| Wind | W 7 | W 8 | W 7 | W 5 | W 4 | SW 3 | SW 2 | SW 2 | WNW 2 | NNE 1 | E 2 | N 2 | NNW 3 | NNW 5 | N 6 | N 7 | N 8 | N 8 | NNW 9 | NW 9 | NW 7 | NW 5 | NNW 3 | N 2 |
Growing Conditions
Growing degree days
2,742
since Apr 1, base 50°F
Rain, last 30 days
0.00 in
model analysis
Rain, year to date
14.82 in
since Jan 1
2-inch soil temperature
63°F
yesterday, daily average
Reference ET, last 7 days
0.85 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 Union City →
Current Stats & Observations
NWS Forecast
About Union City Weather
Union City sits at about 95 feet above sea level in Alameda County, California. About 74,107 people live in the Union City 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 10a, where the coldest winter night typically falls between 30 to 35°F. Freezing temperatures are rare here.
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