Weather forecast for Portland, OR and surrounding areas Tuesday, May 10

PORTLAND, Ore. (KOIN) – Another cold morning is expected in Oregon.

This Tuesday morning, we’ll also be tapping into that cold Willamette Valley air. Temperatures will drop into the 30s from the early hours of the morning. It’s a morning you’ll want to grab a down jacket in Portland. If you only have lighter gear, you might want to layer up for the morning hours.

Will we have frost? It is possible that some places draw scattered frost on the vegetation. Most places around the Portland Metro should stay warm enough to avoid this cold touch. Frost can also form in parts of central and eastern Oregon.

The last record date for near-freezing temperatures is early May. You can browse the graphs below to see the day’s temperatures and conditions.

Although cold in the morning, the afternoon will warm up to what is closer to mid-April average – the lower 60s. This is another day where the afternoon temperature won’t quite match the time of year.

We know the weather fluctuates, but this spring has been colder than hot. We’ll have to see if that changes in the near future. For now, high temperatures peak in the upper 50s to lower 60s.

The rain will decide to hold back for the day. There are a few isolated showers trying to show up on the weather models, but they are expected to remain mostly dry. If anything were to develop, it would probably be brief and not too heavy.

Due to the lack of cloud cover in the morning, temperatures will drop. It also means that we will have more sun to let the temperatures climb a little in the afternoon. Notice in the second futurecast graphic above that there are a few cells around the Portland metro area at night. Again, he will be very isolated and potentially hampered in his development.

Overall I would expect a dry day. If for some reason we do have a few showers it would be late afternoon and evening. Have a good Tuesday!

Dale D. Schrum