Currently
64°F
in Fallbrook, California, USA
70°F / 59°F
calm
0.07"
Friday, October 23, 2026 5:43 PM PDT
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Fallbrook, California Weather Summary
May,
2026
| Sun | Mon | Tue | Wed | Thu | Fri | Sat |
| 1 | 2 | |||||
| 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| 10 | 11 | 12 | 13 | 14 | 15 | 16 |
| 17 | 18 | 19 | 20 | 21 | 22 | 23 |
| 24 | 25 | 26 | 27 | 28 | 29 | 30 |
| 31 |
| Extremes | Average | Normal | ||
| High Temperature: | 85.4°F (29.7°C) | at 2:59PM May 20 | 74.1°F (23.4°C) | 75°F (24°C) |
| Low Temperature: | 47.6°F (8.7°C) | at 11:00PM May 13 | 54.3°F (12.4°C) | 55°F (13°C) |
| Month Average: | 62.8°F (17.1°C) | for 28 days | ||
| Normal Average: | 63°F (17°C) | |||
| Precipitation: | 0.19" (4.8 mm) | |||
| Date | High | Low | Average | Precipitation |
| May 1 | 76.1°F(24.5°C) | 54.8°F(12.6°C) | 62.9°F(17.2°C) | 0.00"(0.0 mm) |
| May 2 | 75.1°F(23.9°C) | 57.7°F(14.3°C) | 63.9°F(17.7°C) | 0.00"(0.0 mm) |
| May 3 | 70.9°F(21.6°C) | 55.7°F(13.1°C) | 62.0°F(16.6°C) | 0.03"(0.7 mm) |
| May 4 | 70.8°F(21.6°C) | 54.8°F(12.7°C) | 61.4°F(16.3°C) | 0.00"(0.0 mm) |
| May 5 | 68.6°F(20.3°C) | 54.1°F(12.3°C) | 59.7°F(15.4°C) | 0.16"(4.0 mm) |
| May 6 | 74.6°F(23.7°C) | 49.7°F(9.8°C) | 61.2°F(16.2°C) | 0.00"(0.0 mm) |
| May 7 | 76.1°F(24.5°C) | 51.7°F(10.9°C) | 62.6°F(17.0°C) | 0.00"(0.0 mm) |
| May 8 | 78.8°F(26.0°C) | 59.1°F(15.0°C) | 64.4°F(18.0°C) | 0.00"(0.0 mm) |
| May 9 | 81.1°F(27.3°C) | 58.2°F(14.6°C) | N/A | 0.00"(0.0 mm) |
| May 10 | 78.8°F(26.0°C) | 57.5°F(14.2°C) | N/A | 0.00"(0.0 mm) |
| May 11 | 84.5°F(29.2°C) | 55.3°F(12.9°C) | 65.5°F(18.6°C) | 0.00"(0.0 mm) |
| May 12 | 66.3°F(19.1°C) | 56.7°F(13.7°C) | N/A | 0.00"(0.0 mm) |
| May 13 | 76.1°F(24.5°C) | 47.6°F(8.7°C) | 63.3°F(17.4°C) | 0.00"(0.0 mm) |
| May 14 | 74.6°F(23.7°C) | 48.4°F(9.1°C) | 63.4°F(17.4°C) | 0.00"(0.0 mm) |
| May 15 | 74.3°F(23.5°C) | 58.1°F(14.5°C) | 63.4°F(17.5°C) | 0.00"(0.0 mm) |
| May 16 | 73.8°F(23.2°C) | 57.8°F(14.3°C) | 63.4°F(17.4°C) | 0.00"(0.0 mm) |
| May 17 | 68.4°F(20.2°C) | 54.8°F(12.7°C) | 62.0°F(16.7°C) | 0.00"(0.0 mm) |
| May 18 | 73.7°F(23.2°C) | 55.9°F(13.3°C) | 63.0°F(17.2°C) | 0.00"(0.0 mm) |
| May 19 | 85.0°F(29.5°C) | 51.4°F(10.8°C) | 67.8°F(19.9°C) | 0.00"(0.0 mm) |
| May 20 | 85.4°F(29.7°C) | 53.5°F(12.0°C) | 68.5°F(20.3°C) | 0.00"(0.0 mm) |
| May 21 | 78.2°F(25.6°C) | 56.3°F(13.5°C) | 65.2°F(18.4°C) | 0.00"(0.0 mm) |
| May 22 | 73.8°F(23.2°C) | 54.6°F(12.6°C) | 63.8°F(17.7°C) | 0.00"(0.0 mm) |
| May 23 | 72.3°F(22.4°C) | 58.0°F(14.4°C) | 62.7°F(17.1°C) | 0.00"(0.0 mm) |
| May 24 | 71.1°F(21.7°C) | 55.3°F(13.0°C) | 61.9°F(16.6°C) | 0.00"(0.0 mm) |
| May 25 | 71.3°F(21.8°C) | 54.1°F(12.3°C) | 61.2°F(16.2°C) | 0.00"(0.0 mm) |
| May 26 | 68.5°F(20.3°C) | 56.7°F(13.7°C) | 60.6°F(15.9°C) | 0.00"(0.0 mm) |
| May 27 | 65.1°F(18.4°C) | 53.5°F(11.9°C) | 58.6°F(14.8°C) | 0.00"(0.0 mm) |
| May 28 | 69.5°F(20.8°C) | 50.0°F(10.0°C) | 59.3°F(15.2°C) | 0.00"(0.0 mm) |
| May 29 | 69.7°F(20.9°C) | 53.2°F(11.8°C) | 60.0°F(15.5°C) | 0.00"(0.0 mm) |
| May 30 | 73.6°F(23.1°C) | 52.8°F(11.6°C) | 62.4°F(16.9°C) | 0.00"(0.0 mm) |
| May 31 | 76.0°F(24.5°C) | 54.8°F(12.7°C) | 63.8°F(17.7°C) | 0.00"(0.0 mm) |