Roseburg Oregon Weather: A Complete Local Guide

Roseburg, Oregon sits at 479 feet in the North Umpqua Valley — one of Southern Oregon's most geographically diverse areas. As the seat of Douglas County (Oregon's largest county by area), Roseburg experiences a genuinely unique climate that sits between the wet Pacific Coast and the hot, dry interior valleys.

Roseburg's Climate Overview

Roseburg receives about 32 inches of rain annually, most falling October through April. Summers are warm and dry — July highs average around 89°F — with periods where temperatures push into the high 90s. Winters are mild compared to most of Oregon, rarely dropping below 25°F and seeing only occasional light snow at valley floor elevation.

Why Roseburg Weather Can Surprise You

The Umpqua River Valley channels marine air from the coast, keeping Roseburg noticeably cooler and cloudier in summer than the Rogue Valley 60 miles south. On days when Medford hits 105°F, Roseburg might be at 91°F. This marine influence also keeps hard freezes rarer than you might expect.

Seasonal Breakdown

**Spring (March–May)**: Increasingly dry and warm. March still sees regular rain, but by May, clear days dominate. The surrounding hills turn brilliant green.

**Summer (June–September)**: Warm and dry. Wildfire smoke can affect air quality in July–August, particularly when fires burn in the Cascades or Umpqua National Forest. UV index climbs high.

**Fall (October–November)**: Rain returns, temperatures drop gradually. October fog becomes common in the river valley on calm nights.

**Winter (December–February)**: Mild and rainy. Snow at valley floor occurs but rarely accumulates more than an inch or two. Check the Roseburg forecast regularly for freeze warnings that affect roads.

Planning for Roseburg Weather

Whether you're a Roseburg resident or visiting for outdoor recreation at Diamond Lake, Crater Lake, or the North Umpqua River, bookmark our [Roseburg weather forecast](/weather/roseburg-oregon) for current conditions and 7-day outlooks.