Williamsport (PA)
May
Weather in Williamsport, Pennsylvania for May 2026
Your guide to Williamsport weather in May - trends and predictions
The forecast for the next days in Williamsport predicts temperatures to be around 19 °F, close to the historical average.
In general, the average temperature in Williamsport at the beginning of May is 18.7 °F. As the month progressed, temperatures tended to moderately rise, reaching an average of 20.4 °F by the end of May.
Williamsport experiences heavy rainfall in May, with over 20 rainy days and an average total precipitation 317.9 mm.
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Temperatures
Rain 🌧️
More
9
Dry days
22
Rainy days
0
Snow days
19°/10°
Temperatures
13 km/h
Avg max wind
80 %
Avg humidity
Williamsport Weather May
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Temperatures trend during May in Williamsport
See the weather trend as well as the moving average line
May weather in Williamsport day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| May 1 |  Mist | 18° /7° | 1.4 mm | 5 | |
| May 2 | Mist | 20° /8° | 1.6 mm | 5 | |
| May 3 | Mist | 18° /6° | 12.1 mm | 6 | |
| May 4 |  Sunny | 25° /6° | 0.1 mm | 6.3 | |
| May 5 |  Patchy rain possible | 24° /10° | 1.5 mm | 5.6 | |
| May 6 |  Moderate rain | 15° /6° | 6.9 mm | 1.3 | |
| May 7 |  Heavy rain | 11° /2° | 23 mm | 1.4 | |
| May 8 | Patchy rain possible | 14° /-1° | 1.4 mm | 0.7 | |
| May 9 | Patchy rain possible | 17° /4° | 0.7 mm | 3 | |
| May 10 | Patchy rain possible | 21° /1° | 0.2 mm | 3 | |
| May 11 | Patchy rain possible | 22° /10° | 3 mm | 3 | |
| May 12 |  Partly cloudy | 17° /5° | 0 mm | 4 | |
| May 13 | Patchy rain possible | 14° /2° | 0.1 mm | 2 | |
| May 14 | Patchy rain possible | 17° /-1° | 0.3 mm | 2 | |
| May 15 | Patchy rain possible | 14° /5° | 0.2 mm | 3 | |
| May 16 | Sunny | 22° /3° | 0 mm | 4 | |
| May 17 |  Thundery outbreaks possible | 28° /10° | 0 mm | 4 | |
| May 18 | Patchy rain possible | 16° /12° | 0.1 mm | 4 | |
| May 19 | Patchy rain possible | 21° /10° | 0.1 mm | 5 | |
| May 20 | Fog | 21° /8° | 0 mm | 5 | |
| May 21 | Fog | 19° /11° | 32.5 mm | 5 | |
| May 22 | Fog | 20° /11° | 24.2 mm | 5 | |
| May 23 | Light rain shower | 18° /11° | 3.1 mm | 4 | |
| May 24 | Sunny | 20° /8° | 0 mm | 5 | |
| May 25 | Thundery outbreaks possible | 22° /10° | 0.2 mm | 5 | |
| May 26 | Fog | 24° /11° | 0.8 mm | 5 | |
| May 27 |  Moderate or heavy rain shower | 21° /11° | 15.8 mm | 5 | |
| May 28 | Fog | 18° /10° | 8.2 mm | 4 | |
| May 29 | Light rain shower | 19° /10° | 7.4 mm | 5 | |
| May 30 | Mist | 20° /9° | 5.8 mm | 5 | |
| May 31 | Partly cloudy | 19° /7° | 0 mm | 5 | |
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Important Notice
Our weather forecast for Williamsport 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 Williamsport forecast closer to your planned date for the most up-to-date weather information.
Change Month
Williamsport in May - FAQ
What are the expected maximum and minimum temperatures in Williamsport during May?
Enjoy moderate daytime temperatures of up to 19° and cooler nights around 10°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Williamsport during May?
Significant rainfall exceeding 317.9 mm is expected in Williamsport during May, occurring over more than 22 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Williamsport during May?
The average wind speed in Williamsport during May is 13 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in Williamsport
Explore the daily rainfall trends and prepare for Williamsports May weather 💧
Typically, Williamsport has 22 rainy days in May with a total of 317.9 mm of rainfall.
UV exposure in Williamsport during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
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Where is Williamsport?Get accurate weather forecasts for Williamsport, located at latitude 41.241 and longitude -77.001. Stay updated with localized weather information tailored for Williamsport.
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