Willamette National Forest
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Willamette National Forest Weather in May

During May, Willamette National Forest experiences moderate daytime temperatures of 14°C (57°F) and cooler nights around 3°C (37°F). Expect quite a bit of rainfall. Around 146 mm (5.7 in) is typical.

Rainfall in Willamette National Forest in May

You can typically expect 17 days of rain this month, averaging around 146 mm (5.7 in). This is a wet month with frequent and often heavy showers. Both the number of rain days and the total rainfall are high.

Temperature in Willamette National Forest in May

May in Willamette National Forest brings typical temperatures with highs around 14°C (57°F) and lows of 3°C (37°F). A light jacket or extra layer can be useful, especially outside the warmest hours of the day. Nights fall to 3°C (37°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.

For Willamette National Forest itself, July, August and September generally stand out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

Willamette National Forest Temperature in May

Min Temperature
3°C (37°F)
Max Temperature
14°C (57°F)
Chance of Rain
57%
Precipitation
146 mm (5.7 in)
Rainy days
17 days

Willamette National Forest Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Willamette National Forest - and find the best time to visit.

Best Places in the United States of America in May

Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in May →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Willamette National Forest in May

The weather can be unpredictable in May, so pack clothes you can easily mix and match. You could bring jeans, other long pants, and a few t-shirts. A light jacket or light sweater will be pleasant for the cooler moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho.

What To Do in Willamette National Forest in May

We rated the following activities from 1 (least suitable) to 10 (best) to do.

  • Cycling
    5/10
  • Walking
    5/10
  • Barbeque
    4/10
  • Camping
    3/10
  • Outdoor sports
    9/10

Willamette National Forest 3-Day Forecast

More climate data for Willamette National Forest

Popular in May

Where to go in May - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.