Southern Oregon begins the second week of March with a burst of unseasonably warm weather before transitioning into a more typical pattern of shifting early spring conditions that could influence travel across the region. From the Rogue Valley and Grants Pass to the mountain passes along Interstate 5, residents and travelers should expect a mix of sunshine, cooler evenings, occasional cloud cover, and the possibility of unsettled weather at higher elevations through next weekend.
Sunday, March 8 opens with mild conditions throughout much of the Rogue Valley. Early morning fog may settle in low-lying areas near the Rogue River and in sheltered valleys before gradually lifting by mid-morning. Once the fog clears, skies are expected to turn mostly sunny with afternoon temperatures climbing well above seasonal averages. Many valley communities, including Grants Pass and Medford, may see temperatures reach the mid-70s, creating a warm start to the week that feels more like late spring than early March. Overnight temperatures Sunday night are expected to remain relatively comfortable, settling into the upper 40s to near 50 degrees in most valley locations.
A subtle change arrives Monday as cloud cover increases across Southern Oregon. Temperatures will remain mild, though slightly cooler than Sunday, with daytime highs expected to reach the mid-60s. Morning commuters could again encounter patchy fog in river valleys and along rural roadways. Travel conditions across Josephine and Jackson counties should remain generally favorable, with dry roads expected across the majority of the region.
Tuesday will bring partly cloudy skies and a gradual cooling trend during the overnight hours. Daytime temperatures should remain pleasant, hovering in the mid-60s during the afternoon before dropping into the mid-30s late Tuesday night. The cooler overnight temperatures could allow for localized fog to redevelop in sheltered areas, particularly near waterways and agricultural land.
By midweek, Southern Oregon will briefly return to warmer weather. Wednesday and Thursday are expected to be the warmest days of the week, with valley temperatures once again climbing into the low to mid-70s. Alternating sunshine and passing clouds will dominate the skies as a ridge of high pressure settles temporarily over the Pacific Northwest. The warmer conditions may encourage increased travel across regional highways as residents take advantage of the springlike weather.
Toward the end of the week, conditions are expected to moderate again as cooler air begins moving back into the region. Friday will likely see daytime highs fall back into the low-60s with increasing cloud cover across Southern Oregon. While widespread storms are not currently expected across valley communities, changing weather patterns may introduce light precipitation to higher elevations in surrounding mountain areas.
Travelers planning routes through mountain corridors such as the Siskiyou Summit along Interstate 5 or Highway 199 toward the Oregon Coast should remain attentive to potential weather changes. Even during warm periods in the valleys, mountain elevations can experience significantly different conditions during early spring. Overnight temperatures in these areas may still fall low enough to produce wet snow or mixed precipitation, particularly during passing weather systems.
As the weekend approaches, temperatures across the Rogue Valley are expected to remain comfortable, generally ranging between the mid-60s and lower-70s during the daytime hours. Skies will likely remain partly cloudy with periods of sunshine, though the possibility of scattered showers cannot be ruled out as the region continues its transition from winter to spring.
Overall, Southern Oregon is expected to experience a relatively stable week of weather with comfortable daytime temperatures and mostly manageable travel conditions. Early morning fog in valley areas and changing conditions in higher elevations remain the primary factors drivers should monitor. With longer daylight hours and warming temperatures, the region continues its gradual shift toward the spring season while still holding onto occasional reminders that winter has not fully released its grip on the surrounding mountains.