Spokane, WA – Drivers across eastern Washington should brace for dense morning fog on Wednesday, especially along I-90, before conditions improve. Reduced visibility could slow commutes and create dangerous travel before 9 a.m., making extra caution on the roads essential.
According to the National Weather Service in Spokane, fog will give way to bright sunshine by late morning. Highs will climb to near 89 degrees Wednesday, continuing an unusually warm stretch for mid-September. The agency warns calm winds and clear nights may allow fog to reform each morning through midweek, particularly in valley areas.
Locally, the biggest impact comes during early travel hours, with Highway 2 and stretches of I-90 near Spokane Valley at risk for reduced visibility. Commuters are urged to use headlights, allow extra distance, and avoid speeding in fog patches.
By Thursday, sunshine dominates with highs near 89, holding steady through Friday. Nights remain mild, with lows in the mid-50s, keeping mornings damp and susceptible to fog development. Though skies stay clear, residents should prepare for warm afternoons that could feel more like midsummer than fall.
Relief arrives by Sunday when highs dip closer to seasonal norms in the upper 70s, giving eastern Washington its first real taste of fall.
Conditions remain quiet overall, with no rain expected through the weekend. Still, fog risks will persist in the early mornings, and NWS says advisories could be issued if visibility drops further.
Five-Day Forecast for Spokane, WA
- Wednesday: Sunny, high near 89. Morning fog possible. Low 55.
- Thursday: Sunny, high near 89. Low 55.
- Friday: Mostly sunny, high near 88. Low 57.
- Saturday: Mostly sunny, high near 83. Low 57.
- Sunday: Sunny, cooler with a high near 78. Low 50.
