Current weather conditions and 15 day weather forecast for Mount Gretna Heights, 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.
| 19 December 2025 Friday 6.1 ° C / 43°F ![]() Light rain |
Feels Like : 3.6 ° C / 38.5°F Humidity : % 87 Pressure : 1016 mb Wind Speed : 11.9 kmph / 7.4 miles from ESE ![]() Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 100 |
| Date | Weather forecast | Low temperature | High temperature | Avg. temperature | Humidity | Chance of rain | UV Index | Sun Position | Moon Position | |
|---|---|---|---|---|---|---|---|---|---|---|
| 18 December 2025 Thursday | Patchy rain nearby |
-3.5 ° C (25.7°F) |
12.4 ° C (54.3°F) |
3.1 ° C (37.5°F) |
% 73 | 74% | 0.3 | Sunrise:07:24 AM Sunset: 04:41 PM |
Moonrise:06:26 AM Moonset: 03:16 PM Moon Phase ( Waning Crescent ) |
|
| 19 December 2025 Friday | Moderate rain |
-5 ° C (23°F) |
13.3 ° C (55.9°F) |
5.3 ° C (41.6°F) |
% 83 | 87% | 0.1 | Sunrise:07:24 AM Sunset: 04:42 PM |
Moonrise:07:24 AM Moonset: 04:04 PM Moon Phase ( New Moon ) |
|
| 20 December 2025 Saturday | Sunny |
-6.2 ° C (20.8°F) |
-0.3 ° C (31.5°F) |
-3.6 ° C (25.4°F) |
% 71 | 0% | 0.3 | Sunrise:07:25 AM Sunset: 04:42 PM |
Moonrise:08:15 AM Moonset: 04:59 PM Moon Phase ( New Moon ) |
|
| 21 December 2025 Sunday | Cloudy |
-4.6 ° C (23.8°F) |
7.9 ° C (46.2°F) |
0.3 ° C (32.5°F) |
% 73 | 0% | 0.3 | Sunrise:07:25 AM Sunset: 04:43 PM |
Moonrise:09:00 AM Moonset: 06:01 PM Moon Phase ( Waxing Crescent ) |
|
| 22 December 2025 Monday | Partly Cloudy |
-4.8 ° C (23.4°F) |
0.1 ° C (32.2°F) |
-2.9 ° C (26.7°F) |
% 53 | 0% | 0.3 | Sunrise:07:26 AM Sunset: 04:43 PM |
Moonrise:09:37 AM Moonset: 07:06 PM Moon Phase ( Waxing Crescent ) |
|
| 23 December 2025 Tuesday | Patchy moderate snow |
-3.8 ° C (25.1°F) |
1.3 ° C (34.4°F) |
-1 ° C (30.2°F) |
% 60 | 88% | 0 | Sunrise:07:26 AM Sunset: 04:44 PM |
Moonrise:10:08 AM Moonset: 08:13 PM Moon Phase ( Waxing Crescent ) |
|
| 24 December 2025 Wednesday | Sunny |
-3.8 ° C (25.1°F) |
1.6 ° C (34.9°F) |
-0.6 ° C (30.9°F) |
% 62 | 0% | 2 | Sunrise:07:27 AM Sunset: 04:44 PM |
Moonrise:10:34 AM Moonset: 09:20 PM Moon Phase ( Waxing Crescent ) |
|
| 25 December 2025 Thursday | Cloudy |
-3.7 ° C (25.4°F) |
2.5 ° C (36.5°F) |
-0.2 ° C (31.6°F) |
% 67 | 0% | 1 | Sunrise:07:27 AM Sunset: 04:45 PM |
Moonrise:10:58 AM Moonset: 10:26 PM Moon Phase ( Waxing Crescent ) |
|
| 26 December 2025 Friday | Patchy rain nearby |
3 ° C (37.4°F) |
15.1 ° C (59.1°F) |
9.1 ° C (48.4°F) |
% 86 | 84% | 2 | Sunrise:07:28 AM Sunset: 04:46 PM |
Moonrise:11:20 AM Moonset: 11:34 PM Moon Phase ( Waxing Crescent ) |
|
| 27 December 2025 Saturday | Cloudy |
4.9 ° C (40.9°F) |
9.2 ° C (48.6°F) |
6.5 ° C (43.7°F) |
% 77 | 0% | 2 | Sunrise:07:28 AM Sunset: 04:46 PM |
Moonrise:11:43 AM Moonset: No moonset Moon Phase ( First Quarter ) |
|
| 28 December 2025 Sunday | Patchy rain nearby |
5.8 ° C (42.4°F) |
7.8 ° C (46°F) |
6.9 ° C (44.4°F) |
% 94 | 88% | 2 | Sunrise:07:28 AM Sunset: 04:47 PM |
Moonrise:12:06 PM Moonset: 12:43 AM Moon Phase ( Waxing Gibbous ) |
|
| 29 December 2025 Monday | Sunny |
-1.8 ° C (28.8°F) |
8.1 ° C (46.6°F) |
5.1 ° C (41.2°F) |
% 80 | 0% | 3 | Sunrise:07:28 AM Sunset: 04:48 PM |
Moonrise:12:33 PM Moonset: 01:56 AM Moon Phase ( Waxing Gibbous ) |
|
| 30 December 2025 Tuesday | Sunny |
-3.3 ° C (26°F) |
3.9 ° C (39°F) |
-0.5 ° C (31.1°F) |
% 60 | 0% | 2 | Sunrise:07:29 AM Sunset: 04:48 PM |
Moonrise:01:07 PM Moonset: 03:13 AM Moon Phase ( Waxing Gibbous ) |
|
| 31 December 2025 Wednesday | Sunny |
-3.2 ° C (26.2°F) |
5.2 ° C (41.4°F) |
-0.3 ° C (31.5°F) |
% 61 | 0% | 2 | Sunrise:07:29 AM Sunset: 04:49 PM |
Moonrise:01:50 PM Moonset: 04:32 AM Moon Phase ( Waxing Gibbous ) |
|