Weather WorldUnion Square, CA 7-Day Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Union Square Weather Forecast
Union Square, CA Weather Forecast Date: 201 AM PDT Sun Sep 20 2026
Weather forecast for Union Square, CA
Today Hi: 84°FHi: 29°C Lo: 56°F Lo: 13°C |
Today... Mostly cloudy in the morning then becoming partly cloudy. Highs around 84. Northwest winds up to 10 mph. |
| Mon Hi: 85°FHi: 29°C Lo: 57°F Lo: 14°C |
Monday... Partly cloudy in the morning then clearing. Highs around 85. Northwest winds up to 10 mph. |
Tue Hi: 86°FHi: 30°C Lo: 58°F Lo: 14°C |
Tuesday... Sunny. Highs around 86. Light winds. |
| Wed Hi: 91°FHi: 33°C Lo: 63°F Lo: 17°C |
Wednesday... Sunny. Highs around 91. |
| Thu Hi: 93°FHi: 34°C Lo: 63°F Lo: 17°C |
Thursday... Mostly clear. Lows 58 to 66. Highs around 93. |
| Fri Hi: 93°FHi: 34°C Lo: 63°F Lo: 17°C |
Friday... Mostly clear. Lows 58 to 66. Highs around 93. |
| Fri Hi: 93°FHi: 34°C Lo: 63°F Lo: 17°C |
Friday... Mostly clear. Lows 58 to 66. Highs around 93. |
Union Square Radar Loop
Use the map search tool if you want to place a location marker on the radar map...