Weather Forecast
As a semi-arid desert region, the Tri-Cities, Washington weather is hot and dry in summer with an abundance of clear, sunny days, and cold in winter with more overcast days.
Tri-Cities Washington Forecast
The Tri-Cities is breezy in spring and fall with the occasional windstorm, but average annual precipitation is less than seven inches. Thanks to winter temperatures hovering at 44 degrees and with little to no snowfall, our golf courses are open year-round! Summer temperature averages hover around a pleasant 88 degrees, with cool mornings warming up into sunny, warm days and evenings ripe for adventure.
The Tri-Cities has greater temperature variation than other places in the Pacific Northwest, with some weeks in winter below freezing and some weeks in summer in the 90s or over 100°F, so check the weather before you come and pack accordingly.
For the current local temperature, scroll to the bottom of the page.
Average Monthly Temperatures
| Month | High | Low |
| January | 40 | 28 |
| February | 48 | 31 |
| March | 58 | 36 |
| April | 66 | 42 |
| May | 74 | 49 |
| June | 82 | 56 |
| July | 89 | 61 |
| August | 89 | 61 |
| September | 80 | 52 |
| October | 66 | 42 |
| November | 50 | 36 |
| December | 41 | 29 |