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 17.4 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 20.6 °C by the end of May.
The climate of Marion County in May is notably wet, with an average of 13 rainy days, and a total of 49.8 mm of precipitation.
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Temperatures
Rain 🌧️
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18
Dry days
13
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
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May weather in Marion County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| May 1 |  Patchy rain possible | 19° /4° | 0.1 mm | 6 | |
| May 2 |  Light drizzle | 18° /7° | 3.5 mm | 5 | |
| May 3 | Light rain | 17° /6° | 5.2 mm | 4 | |
| May 4 |  Overcast | 15° /5° | 7.2 mm | 4 | |
| May 5 | Light drizzle | 17° /5° | 1.1 mm | 5 | |
| May 6 | Light rain shower | 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 | 21° /8° | 0 mm | 7 | |
| May 11 | Sunny | 21° /9° | 7.1 mm | 6 | |
| May 12 | Patchy rain possible | 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 | Mist | 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 | 17° /5° | 0 mm | 5 | |
| May 19 | Patchy rain possible | 16° /5° | 0.3 mm | 5 | |
| May 20 | Sunny | 20° /9° | 1.1 mm | 6 | |
| May 21 |  Cloudy | 19° /8° | 0 mm | 5 | |
| May 22 | Cloudy | 18° /7° | 1.8 mm | 5 | |
| May 23 | Patchy rain possible | 18° /6° | 0 mm | 5 | |
| May 24 | Partly cloudy | 21° /6° | 0.1 mm | 6 | |
| May 25 | Sunny | 18° /7° | 1 mm | 5 | |
| May 26 | Sunny | 20° /7° | 1.9 mm | 5 | |
| May 27 | Overcast | 23° /7° | 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° /5° | 0 mm | 6 | |
| May 31 | Overcast | 21° /6° | 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.
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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?
In May, Marion County can expect light to moderate rainfall, totaling 49.8 mm across approximately 13 days. Occasional showers are possible, and planning ahead for them could be helpful.
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 13 rainy days in May with a total of 49.8 mm of rainfall.
UV exposure in Marion County during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
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Where is Marion County?Get accurate weather forecasts for Marion County, located at latitude 44.943 and longitude -123.035. Stay updated with localized weather information tailored for Marion County.
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