Weather WorldUnion Lake, CA 7-Day Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Union Lake Weather Forecast
Union Lake, CA Weather Forecast Date: 314 PM PDT Sun Oct 04 2026
Weather forecast for Union Lake, CA
Tonight Lo: 60°F Lo: 16°C |
Tonight... Mostly cloudy in the evening then clearing. Patchy smoke in the evening. Lows 54 to 64. Northwest wind around 5 mph. |
Mon Hi: 89°FHi: 32°C Lo: 59°F Lo: 15°C |
Monday... Sunny. Highs 81 to 96. Northwest wind around 5 mph shifting to the southwest in the afternoon. |
| Tue Hi: 91°FHi: 33°C Lo: 59°F Lo: 15°C |
Tuesday... Sunny. Highs 83 to 98. Southeast wind around 5 mph. |
| Wed Hi: 91°FHi: 33°C Lo: 58°F Lo: 14°C |
Wednesday... Clear. Lows 53 to 63. Highs 83 to 98. South wind around 5 mph. |
| Thu Hi: 90°FHi: 32°C Lo: 58°F Lo: 14°C |
Thursday... Clear. Lows 52 to 62. Highs 82 to 97. |
| Thu Hi: 90°FHi: 32°C Lo: 58°F Lo: 14°C |
Thursday... Clear. Lows 52 to 62. Highs 82 to 97. |
| Fri Hi: 83°FHi: 28°C Lo: 47°F Lo: 8°C |
Friday... Sunny. Highs 75 to 90. |
| Sat Hi: 83°FHi: 28°C Lo: 47°F Lo: 8°C |
Saturday... Mostly clear. Lows 41 to 51. Highs 75 to 90. |
| Sun Hi: 83°FHi: 28°C Lo: 47°F Lo: 8°C |
Sunday... Mostly clear. Lows 41 to 51. Highs 75 to 90. |
Union Lake Radar Loop
Use the map search tool if you want to place a location marker on the radar map...