Marion County (Salem)
May
Weather in Marion County, Oregon for May 2027
Your guide to Marion County weather in May - trends and predictions
In general, the average temperature in Marion County at the beginning of May is 17.2 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 20.4 °C by the end of May.
Marion County experiences moderate rainfall in May, with an average of 6 rainy days and a total precipitation of 50.4 mm.
Is May a good time to visit Marion County? check out the best time to travel to Marion County page.
✨ Is May a good time to visit Marion County? – Ask the AI Weatherman
Temperatures
Rain 🌧️
More
25
Dry days
6
Rainy days
0
Snow days
18°/7°
Temperatures
13 km/h
Avg max wind
75 %
Avg humidity
Marion County Weather May
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Temperatures trend during May in Marion County
See the weather trend as well as the moving average line
May weather in Marion County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| May 1 |  Patchy rain possible | 19° /5° | 0.1 mm | 6 | |
| May 2 |  Light rain | 18° /7° | 3.5 mm | 5 | |
| May 3 | Light rain | 16° /7° | 5.2 mm | 4 | |
| May 4 | Light rain | 15° /6° | 7.2 mm | 4 | |
| May 5 | Light drizzle | 17° /5° | 1.1 mm | 5 | |
| May 6 | Light rain | 19° /6° | 3.9 mm | 6 | |
| May 7 | Light rain shower | 17° /6° | 0.4 mm | 5 | |
| May 8 |  Overcast | 17° /4° | 0 mm | 5 | |
| May 9 |  Mist | 22° /5° | 0 mm | 6 | |
| May 10 |  Sunny | 20° /9° | 0 mm | 7 | |
| May 11 | Light rain | 21° /9° | 7.1 mm | 6 | |
| May 12 | Light rain | 21° /8° | 4.5 mm | 6 | |
| May 13 | Patchy rain possible | 15° /7° | 2.3 mm | 3 | |
| May 14 | Mist | 18° /6° | 0.4 mm | 5 | |
| May 15 | Light rain | 17° /6° | 5.8 mm | 5 | |
| May 16 | Fog | 16° /6° | 0.3 mm | 5 | |
| May 17 |  Partly cloudy | 16° /6° | 0.1 mm | 5 | |
| May 18 | Mist | 16° /5° | 0 mm | 5 | |
| May 19 | Patchy rain possible | 16° /6° | 0.3 mm | 5 | |
| May 20 | Patchy rain possible | 20° /9° | 1.1 mm | 6 | |
| May 21 |  Cloudy | 19° /9° | 0 mm | 5 | |
| May 22 | Patchy rain possible | 18° /8° | 1.8 mm | 5 | |
| May 23 | Patchy rain possible | 18° /7° | 0 mm | 5 | |
| May 24 | Partly cloudy | 20° /6° | 0.1 mm | 6 | |
| May 25 | Patchy rain possible | 18° /8° | 1 mm | 5 | |
| May 26 | Patchy rain possible | 20° /8° | 1.9 mm | 5 | |
| May 27 | Overcast | 23° /8° | 0 mm | 6 | |
| May 28 | Overcast | 22° /9° | 0.3 mm | 6 | |
| May 29 | Patchy rain possible | 19° /7° | 2 mm | 5 | |
| May 30 | Partly cloudy | 21° /6° | 0 mm | 6 | |
| May 31 | Overcast | 21° /7° | 0 mm | 6 | |
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Important Notice
Our weather forecast for Marion County in May is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Marion County forecast closer to your planned date for the most up-to-date weather information.
Change Month
Marion County in May - FAQ
What are the expected maximum and minimum temperatures in Marion County during May?
Enjoy moderate daytime temperatures of up to 18° and cooler nights around 7°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Marion County during May?
Moderate rainfall is anticipated in Marion County during May, with a total of 50.4 mm spread over approximately 6 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Marion County during May?
The average wind speed in Marion County during May is 13 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in Marion County
Explore the daily rainfall trends and prepare for Marion Countys May weather 💧
Typically, Marion County has 6 rainy days in May with a total of 50.4 mm of rainfall.
UV exposure in Marion County during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
Top locations in Marion County
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