Current weather conditions and 15 day weather forecast for Harleysville, 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.
| 15 December 2025 Monday -9.6 ° C / 14.7°F ![]() Clear |
Feels Like : -17.2 ° C / 1°F Humidity : % 61 Pressure : 1026 mb Wind Speed : 19.4 kmph / 12.1 miles from NW ![]() Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
| Date | Weather forecast | Low temperature | High temperature | Avg. temperature | Humidity | Chance of rain | UV Index | Sun Position | Moon Position | |
|---|---|---|---|---|---|---|---|---|---|---|
| 15 December 2025 Monday | Sunny |
-10.3 ° C (13.5°F) |
-2.7 ° C (27.1°F) |
-6.5 ° C (20.3°F) |
% 66 | 0% | 0.3 | Sunrise:07:17 AM Sunset: 04:36 PM |
Moonrise:03:15 AM Moonset: 01:33 PM Moon Phase ( Waning Crescent ) |
|
| 16 December 2025 Tuesday | Partly Cloudy |
-5.7 ° C (21.7°F) |
2.6 ° C (36.7°F) |
-2.2 ° C (28.1°F) |
% 69 | 0% | 0.4 | Sunrise:07:18 AM Sunset: 04:36 PM |
Moonrise:04:17 AM Moonset: 02:00 PM Moon Phase ( Waning Crescent ) |
|
| 17 December 2025 Wednesday | Cloudy |
-2.9 ° C (26.8°F) |
5.3 ° C (41.5°F) |
1 ° C (33.7°F) |
% 73 | 0% | 0.4 | Sunrise:07:18 AM Sunset: 04:37 PM |
Moonrise:05:19 AM Moonset: 02:32 PM Moon Phase ( Waning Crescent ) |
|
| 18 December 2025 Thursday | Patchy moderate snow |
-3.5 ° C (25.7°F) |
2 ° C (35.6°F) |
0.4 ° C (32.7°F) |
% 83 | 65% | 0.2 | Sunrise:07:19 AM Sunset: 04:37 PM |
Moonrise:06:20 AM Moonset: 03:12 PM Moon Phase ( Waning Crescent ) |
|
| 19 December 2025 Friday | Moderate rain |
-2.5 ° C (27.4°F) |
12.6 ° C (54.6°F) |
6.6 ° C (43.9°F) |
% 82 | 84% | 0 | Sunrise:07:19 AM Sunset: 04:37 PM |
Moonrise:07:19 AM Moonset: 03:59 PM Moon Phase ( New Moon ) |
|
| 20 December 2025 Saturday | Partly Cloudy |
-3.1 ° C (26.4°F) |
1.3 ° C (34.3°F) |
-0.9 ° C (30.4°F) |
% 57 | 0% | 2 | Sunrise:07:20 AM Sunset: 04:38 PM |
Moonrise:08:10 AM Moonset: 04:55 PM Moon Phase ( New Moon ) |
|
| 21 December 2025 Sunday | Patchy rain nearby |
1 ° C (33.8°F) |
7.2 ° C (45°F) |
3.9 ° C (39.1°F) |
% 83 | 82% | 1 | Sunrise:07:21 AM Sunset: 04:38 PM |
Moonrise:08:55 AM Moonset: 05:57 PM Moon Phase ( Waxing Crescent ) |
|
| 22 December 2025 Monday | Partly Cloudy |
-3 ° C (26.6°F) |
0.2 ° C (32.4°F) |
-1.5 ° C (29.3°F) |
% 54 | 0% | 2 | Sunrise:07:21 AM Sunset: 04:39 PM |
Moonrise:09:32 AM Moonset: 07:02 PM Moon Phase ( Waxing Crescent ) |
|
| 23 December 2025 Tuesday | Partly Cloudy |
-2.1 ° C (28.2°F) |
2.9 ° C (37.2°F) |
0.6 ° C (33°F) |
% 52 | 0% | 2 | Sunrise:07:22 AM Sunset: 04:39 PM |
Moonrise:10:03 AM Moonset: 08:08 PM Moon Phase ( Waxing Crescent ) |
|
| 24 December 2025 Wednesday | Overcast |
2.9 ° C (37.2°F) |
9.3 ° C (48.7°F) |
5.5 ° C (41.9°F) |
% 70 | 0% | 2 | Sunrise:07:22 AM Sunset: 04:40 PM |
Moonrise:10:29 AM Moonset: 09:15 PM Moon Phase ( Waxing Crescent ) |
|
| 25 December 2025 Thursday | Sunny |
-4.3 ° C (24.3°F) |
-2.2 ° C (28°F) |
-2.6 ° C (27.2°F) |
% 43 | 0% | 2 | Sunrise:07:22 AM Sunset: 04:41 PM |
Moonrise:10:53 AM Moonset: 10:21 PM Moon Phase ( Waxing Crescent ) |
|
| 26 December 2025 Friday | Heavy snow |
-4 ° C (24.9°F) |
-1 ° C (30.2°F) |
-2.6 ° C (27.4°F) |
% 68 | 82% | 1 | Sunrise:07:23 AM Sunset: 04:41 PM |
Moonrise:11:16 AM Moonset: 11:29 PM Moon Phase ( Waxing Crescent ) |
|
| 27 December 2025 Saturday | Sunny |
-10.9 ° C (12.4°F) |
-7.6 ° C (18.4°F) |
-7.9 ° C (17.8°F) |
% 81 | 0% | 2 | Sunrise:07:23 AM Sunset: 04:42 PM |
Moonrise:11:38 AM Moonset: No moonset Moon Phase ( First Quarter ) |
|
| 28 December 2025 Sunday | Sunny |
-10.5 ° C (13.1°F) |
-4.5 ° C (23.9°F) |
-7.8 ° C (18°F) |
% 85 | 0% | 2 | Sunrise:07:23 AM Sunset: 04:43 PM |
Moonrise:12:02 PM Moonset: 12:38 AM Moon Phase ( Waxing Gibbous ) |
|