Weather information for the Moses Lake area is provided below. Average temperatures, climate details and current forecasts are included.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Avg. High | 34 | 41 | 54 | 62 | 72 | 81 | 88 | 87 | 77 | 64 | 45 | 34 |
| Avg. Low | 20 | 26 | 32 | 38 | 47 | 55 | 61 | 60 | 51 | 40 | 30 | 22 |
| Avg. Precip. | 0.8 | 0.7 | 0.7 | 0.5 | 0.5 | 0.5 | 0.3 | 0.3 | 0.4 | 0.4 | 1.0 | 1.3 |



