Williamsport Weather Forecast 15 Days, Weather in Williamsport Today
Current weather conditions and 15 day weather forecast for Williamsport, Pennsylvania, USA including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain risk, wind speed, cloud, pressure, and UV index.
Current weather conditions at Williamsport
| 24 December 2025 Wednesday 3.9 ° C / 39°F  Clear |
Feels Like : -0.4 ° C / 31.3°F Humidity : % 55 Pressure : 1020 mb Wind Speed : 20.5 kmph / 12.8 miles from NW  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15 day weather forecast for Williamsport, PA, USA
Weather Forecast for next 15 Days for Williamsport including weather warnings, temperature, rain, wind speed, cloud, snow, wind speed and wind direction, pressure and UV index.Here is weather for the next 15 days in Williamsport, Pennsylvania state, US. To see the daily forecast, scroll to the table below.
| Date | Weather forecast | Low temperature | High temperature | Avg. temperature | Humidity | Chance of rain | UV Index | Sun Position | Moon Position | |
|---|---|---|---|---|---|---|---|---|---|---|
| 24 December 2025 Wednesday | Sunny |
-1.6 ° C (29°F) |
7.1 ° C (44.8°F) |
2.9 ° C (37.2°F) |
% 70 | 0% | 0.3 | Sunrise:07:32 AM Sunset: 04:44 PM |
Moonrise:10:39 AM Moonset: 09:21 PM Moon Phase ( Waxing Crescent ) |
|
| 25 December 2025 Thursday |  Overcast |
-2.4 ° C (27.7°F) |
3.9 ° C (39°F) |
0.3 ° C (32.6°F) |
% 74 | 0% | 0.1 | Sunrise:07:33 AM Sunset: 04:45 PM |
Moonrise:11:02 AM Moonset: 10:28 PM Moon Phase ( Waxing Crescent ) |
|
| 26 December 2025 Friday |  Moderate snow |
-5.1 ° C (22.8°F) |
-2.1 ° C (28.2°F) |
-3.3 ° C (26.1°F) |
% 56 | 82% | 0.1 | Sunrise:07:33 AM Sunset: 04:45 PM |
Moonrise:11:23 AM Moonset: 11:37 PM Moon Phase ( Waxing Crescent ) |
|
| 27 December 2025 Saturday |  Light snow |
-4 ° C (24.8°F) |
-1.4 ° C (29.4°F) |
-2.4 ° C (27.7°F) |
% 97 | 81% | 0.1 | Sunrise:07:33 AM Sunset: 04:46 PM |
Moonrise:11:45 AM Moonset: No moonset Moon Phase ( First Quarter ) |
|
| 28 December 2025 Sunday |  Freezing fog |
-3.4 ° C (25.9°F) |
1.6 ° C (34.9°F) |
-0.8 ° C (30.6°F) |
% 96 | 62% | 0 | Sunrise:07:34 AM Sunset: 04:47 PM |
Moonrise:12:08 PM Moonset: 12:47 AM Moon Phase ( Waxing Gibbous ) |
|
| 29 December 2025 Monday |  Light freezing rain |
-8.4 ° C (16.9°F) |
-5.9 ° C (21.3°F) |
-6.8 ° C (19.7°F) |
% 75 | 65% | 1 | Sunrise:07:34 AM Sunset: 04:47 PM |
Moonrise:12:34 PM Moonset: 02:00 AM Moon Phase ( Waxing Gibbous ) |
|
| 30 December 2025 Tuesday |  Partly Cloudy |
-7.1 ° C (19.1°F) |
-2.3 ° C (27.9°F) |
-5.4 ° C (22.4°F) |
% 81 | 0% | 2 | Sunrise:07:34 AM Sunset: 04:48 PM |
Moonrise:01:07 PM Moonset: 03:18 AM Moon Phase ( Waxing Gibbous ) |
|
| 31 December 2025 Wednesday | Freezing fog |
-13.1 ° C (8.4°F) |
-3.7 ° C (25.4°F) |
-7.3 ° C (18.9°F) |
% 93 | 74% | 1 | Sunrise:07:34 AM Sunset: 04:49 PM |
Moonrise:01:49 PM Moonset: 04:38 AM Moon Phase ( Waxing Gibbous ) |
|
| 01 January 2026 Thursday |  Heavy snow |
-16.1 ° C (3°F) |
2 ° C (35.6°F) |
-6.5 ° C (20.3°F) |
% 85 | 87% | 1 | Sunrise:07:34 AM Sunset: 04:50 PM |
Moonrise:02:43 PM Moonset: 05:57 AM Moon Phase ( Waxing Gibbous ) |
|
| 02 January 2026 Friday | Light snow |
-17 ° C (1.4°F) |
-8 ° C (17.7°F) |
-11.6 ° C (11.2°F) |
% 75 | 0% | 1 | Sunrise:07:34 AM Sunset: 04:51 PM |
Moonrise:03:50 PM Moonset: 07:08 AM Moon Phase ( Waxing Gibbous ) |
|
| 03 January 2026 Saturday | Partly Cloudy |
-10 ° C (14°F) |
-4.7 ° C (23.6°F) |
-7.8 ° C (18°F) |
% 77 | 0% | 2 | Sunrise:07:34 AM Sunset: 04:52 PM |
Moonrise:05:06 PM Moonset: 08:06 AM Moon Phase ( Full Moon ) |
|
| 04 January 2026 Sunday | Partly Cloudy |
-8.5 ° C (16.8°F) |
0.4 ° C (32.7°F) |
-4.4 ° C (24.1°F) |
% 87 | 0% | 2 | Sunrise:07:34 AM Sunset: 04:53 PM |
Moonrise:06:25 PM Moonset: 08:52 AM Moon Phase ( Waning Gibbous ) |
|
| 05 January 2026 Monday |  Mist |
-14.5 ° C (5.9°F) |
-5.8 ° C (21.6°F) |
-10.8 ° C (12.6°F) |
% 89 | 0% | 1 | Sunrise:07:34 AM Sunset: 04:54 PM |
Moonrise:07:42 PM Moonset: 09:27 AM Moon Phase ( Waning Gibbous ) |
|
| 06 January 2026 Tuesday | Heavy snow |
-14 ° C (6.8°F) |
-3.1 ° C (26.5°F) |
-6.9 ° C (19.5°F) |
% 94 | 82% | 1 | Sunrise:07:34 AM Sunset: 04:55 PM |
Moonrise:08:54 PM Moonset: 09:54 AM Moon Phase ( Waning Gibbous ) |
|
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