Current conditions and the National Weather Service 7-day forecast for ZIP code 91789, Walnut, California — temperature, rain chance, wind, radar and alerts.
Saturday Aug 29 night: a low around 68°F. Sunday Aug 30: a high near 93°F and a low around 64°F. The wettest day looks like Tuesday Sep 1, near 0.01 in. Highs over the period run 88°F to 94°F.
| Day | High | Low | Precip |
|---|---|---|---|
| Saturday Aug 29 | — | 68° | — |
| Sunday Aug 30 | 93° | 64° | — |
| Monday Aug 31 | 90° | 64° | — |
| Tuesday Sep 1 | 88° | 64° | 0.01 in |
| Wednesday Sep 2 | 89° | 65° | — |
| Thursday Sep 3 | 90° | 64° | — |
| Friday Sep 4 | 92° | 66° | — |
| Saturday Sep 5 | 94° | — | — |