Pendleton, OR – Fire danger is expected to increase across northeast Oregon and south-central Washington through Thursday as warm temperatures, gusty winds, and dry conditions persist, according to the National Weather Service (NWS) in Pendleton.
On Wednesday, September 24, forecasters call for unseasonably warm weather with highs in the 80s. Some areas may approach 90°F, which NWS says could enhance instability and affect existing wildfires. Winds are projected at 5 to 10 mph, with locally higher speeds of 10 to 15 mph across the Grande Ronde Valley. Minimum relative humidity is expected to remain low, between 10 and 25 percent.
Conditions are forecast to remain dry Thursday, September 25, though slightly cooler, with highs ranging from the mid-70s to low 80s. Stronger winds are anticipated as a cold front moves through the region. Gusty west winds may reach 20 to 25 mph, with gusts of 30 to 35 mph. Locally higher gusts are expected in the Kittitas Valley. Minimum humidity will remain between 10 and 25 percent.
Officials warn that these conditions could make wildfires more difficult to control and increase the likelihood of rapid fire spread. Residents are urged to use caution with outdoor burning, equipment use, or any spark-producing activity that could ignite dry fuels.