Current weather conditions and 15 day weather forecast for Mercer, 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.
| 05 August 2026 Wednesday 19.8 ° C / 67.6°F ![]() Clear |
Feels Like : 20.1 ° C / 68.2°F Humidity : % 71 Pressure : 1018 mb Wind Speed : 5.8 kmph / 3.6 miles from E ![]() Visibility : 10 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 05 August 2026 Wednesday | Sunny |
18.5 ° C (65.3°F) |
29.9 ° C (85.9°F) |
23.2 ° C (73.7°F) |
% 75 | 69% | 8.9 | Sunrise:06:20 AM Sunset: 08:33 PM |
Moonrise:11:38 PM Moonset: 01:39 PM Moon Phase ( Last Quarter ) |
|
| 06 August 2026 Thursday | Patchy rain nearby |
18.6 ° C (65.4°F) |
30 ° C (85.9°F) |
22.9 ° C (73.2°F) |
% 80 | 70% | 8.9 | Sunrise:06:21 AM Sunset: 08:32 PM |
Moonrise:Does not rise today Moonset: 02:50 PM Moon Phase ( Last Quarter ) |
|
| 07 August 2026 Friday | Patchy rain nearby |
19 ° C (66.2°F) |
27.4 ° C (81.3°F) |
22.5 ° C (72.5°F) |
% 88 | 86% | 6 | Sunrise:06:22 AM Sunset: 08:31 PM |
Moonrise:12:13 AM Moonset: 04:03 PM Moon Phase ( Waning Crescent ) |
|
| 08 August 2026 Saturday | Patchy rain nearby |
18.3 ° C (64.9°F) |
29.9 ° C (85.8°F) |
22.4 ° C (72.4°F) |
% 84 | 81% | 7 | Sunrise:06:23 AM Sunset: 08:29 PM |
Moonrise:12:57 AM Moonset: 05:13 PM Moon Phase ( Waning Crescent ) |
|
| 09 August 2026 Sunday | Patchy rain nearby |
18.4 ° C (65.1°F) |
29.9 ° C (85.8°F) |
22.9 ° C (73.2°F) |
% 87 | 77% | 6 | Sunrise:06:24 AM Sunset: 08:28 PM |
Moonrise:01:54 AM Moonset: 06:16 PM Moon Phase ( Waning Crescent ) |
|
| 10 August 2026 Monday | Patchy rain nearby |
20.4 ° C (68.8°F) |
25 ° C (77°F) |
22 ° C (71.6°F) |
% 92 | 90% | 6 | Sunrise:06:25 AM Sunset: 08:27 PM |
Moonrise:03:04 AM Moonset: 07:08 PM Moon Phase ( New Moon ) |
|
| 11 August 2026 Tuesday | Light rain shower |
14.3 ° C (57.8°F) |
21.8 ° C (71.2°F) |
19.9 ° C (67.8°F) |
% 91 | 85% | 6 | Sunrise:06:26 AM Sunset: 08:25 PM |
Moonrise:04:24 AM Moonset: 07:50 PM Moon Phase ( New Moon ) |
|
| 12 August 2026 Wednesday | Sunny |
12 ° C (53.7°F) |
24.6 ° C (76.2°F) |
18.2 ° C (64.8°F) |
% 72 | 7% | 6 | Sunrise:06:27 AM Sunset: 08:24 PM |
Moonrise:05:47 AM Moonset: 08:24 PM Moon Phase ( New Moon ) |
|
| 13 August 2026 Thursday | Sunny |
14.8 ° C (58.6°F) |
25.2 ° C (77.3°F) |
19.5 ° C (67°F) |
% 74 | 8% | 7 | Sunrise:06:28 AM Sunset: 08:23 PM |
Moonrise:07:09 AM Moonset: 08:52 PM Moon Phase ( New Moon ) |
|
| 14 August 2026 Friday | Partly Cloudy |
14.1 ° C (57.3°F) |
23.7 ° C (74.6°F) |
18 ° C (64.5°F) |
% 75 | 10% | 6 | Sunrise:06:29 AM Sunset: 08:21 PM |
Moonrise:08:28 AM Moonset: 09:17 PM Moon Phase ( Waxing Crescent ) |
|
| 15 August 2026 Saturday | Sunny |
12.6 ° C (54.7°F) |
22 ° C (71.7°F) |
17.1 ° C (62.7°F) |
% 69 | 36% | 6 | Sunrise:06:30 AM Sunset: 08:20 PM |
Moonrise:09:44 AM Moonset: 09:41 PM Moon Phase ( Waxing Crescent ) |
|
| 16 August 2026 Sunday | Sunny |
10.6 ° C (51.1°F) |
23.6 ° C (74.5°F) |
16.7 ° C (62.1°F) |
% 69 | 6% | 6 | Sunrise:06:31 AM Sunset: 08:19 PM |
Moonrise:10:58 AM Moonset: 10:05 PM Moon Phase ( Waxing Crescent ) |
|
| 17 August 2026 Monday | Sunny |
12.1 ° C (53.8°F) |
25.6 ° C (78°F) |
18.4 ° C (65.1°F) |
% 67 | 6% | 7 | Sunrise:06:32 AM Sunset: 08:17 PM |
Moonrise:12:11 PM Moonset: 10:31 PM Moon Phase ( Waxing Crescent ) |
|
| 18 August 2026 Tuesday | Sunny |
14.1 ° C (57.4°F) |
25.7 ° C (78.2°F) |
19.7 ° C (67.4°F) |
% 70 | 7% | 7 | Sunrise:06:33 AM Sunset: 08:16 PM |
Moonrise:01:23 PM Moonset: 11:01 PM Moon Phase ( First Quarter ) |
|