Williamstown Weather Forecast 15 Days, Weather in Williamstown Today
Current weather conditions and 15 day weather forecast for Williamstown, New Jersey, 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 Williamstown
| 19 June 2026 Friday 23.3 ° C / 73.9°F  Clear |
Feels Like : 25.1 ° C / 77.1°F Humidity : % 57 Pressure : 1005 mb Wind Speed : 18.4 kmph / 11.4 miles from WNW  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15 day weather forecast for Williamstown, NJ, USA
Weather Forecast for next 15 Days for Williamstown 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 Williamstown, New Jersey 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 19 June 2026 Friday |  Patchy rain nearby |
20.3 ° C (68.5°F) |
28.3 ° C (82.9°F) |
23.6 ° C (74.5°F) |
% 52 | 36% | 9.6 | Sunrise:05:32 AM Sunset: 08:30 PM |
Moonrise:10:22 AM Moonset: Does not set today Moon Phase ( Waxing Crescent ) |
|
| 20 June 2026 Saturday | Sunny |
15.9 ° C (60.7°F) |
26.7 ° C (80°F) |
21.7 ° C (71.1°F) |
% 46 | 2% | 9.4 | Sunrise:05:32 AM Sunset: 08:30 PM |
Moonrise:11:35 AM Moonset: 12:04 AM Moon Phase ( First Quarter ) |
|
| 21 June 2026 Sunday | Sunny |
16 ° C (60.8°F) |
28.5 ° C (83.3°F) |
22.5 ° C (72.5°F) |
% 47 | 2% | 8.8 | Sunrise:05:32 AM Sunset: 08:31 PM |
Moonrise:12:46 PM Moonset: 12:29 AM Moon Phase ( First Quarter ) |
|
| 22 June 2026 Monday |  Heavy rain |
17.7 ° C (63.8°F) |
27.7 ° C (81.9°F) |
21.2 ° C (70.1°F) |
% 81 | 85% | 4.3 | Sunrise:05:32 AM Sunset: 08:31 PM |
Moonrise:01:54 PM Moonset: 12:53 AM Moon Phase ( First Quarter ) |
|
| 23 June 2026 Tuesday | Sunny |
15.7 ° C (60.2°F) |
27.9 ° C (82.3°F) |
20.5 ° C (68.9°F) |
% 67 | 5% | 0.3 | Sunrise:05:32 AM Sunset: 08:31 PM |
Moonrise:03:02 PM Moonset: 01:16 AM Moon Phase ( Waxing Gibbous ) |
|
| 24 June 2026 Wednesday | Patchy rain nearby |
17.5 ° C (63.5°F) |
27.6 ° C (81.7°F) |
22.2 ° C (71.9°F) |
% 60 | 36% | 5 | Sunrise:05:33 AM Sunset: 08:31 PM |
Moonrise:04:09 PM Moonset: 01:42 AM Moon Phase ( Waxing Gibbous ) |
|
| 25 June 2026 Thursday |  Partly Cloudy |
18.2 ° C (64.8°F) |
29.6 ° C (85.3°F) |
23.3 ° C (73.9°F) |
% 62 | 6% | 6 | Sunrise:05:33 AM Sunset: 08:31 PM |
Moonrise:05:16 PM Moonset: 02:10 AM Moon Phase ( Waxing Gibbous ) |
|
| 26 June 2026 Friday | Patchy rain nearby |
18.7 ° C (65.6°F) |
28.6 ° C (83.4°F) |
21.8 ° C (71.3°F) |
% 72 | 63% | 5 | Sunrise:05:33 AM Sunset: 08:31 PM |
Moonrise:06:21 PM Moonset: 02:44 AM Moon Phase ( Waxing Gibbous ) |
|
| 27 June 2026 Saturday |  Cloudy |
18.1 ° C (64.5°F) |
28.9 ° C (83.9°F) |
22.7 ° C (72.9°F) |
% 75 | 14% | 5 | Sunrise:05:34 AM Sunset: 08:31 PM |
Moonrise:07:22 PM Moonset: 03:24 AM Moon Phase ( Full Moon ) |
|
| 28 June 2026 Sunday | Patchy rain nearby |
19.2 ° C (66.5°F) |
33.6 ° C (92.5°F) |
25.5 ° C (77.9°F) |
% 75 | 62% | 6 | Sunrise:05:34 AM Sunset: 08:31 PM |
Moonrise:08:15 PM Moonset: 04:11 AM Moon Phase ( Full Moon ) |
|
| 29 June 2026 Monday | Partly Cloudy |
21.4 ° C (70.5°F) |
34.3 ° C (93.7°F) |
27.3 ° C (81.2°F) |
% 69 | 7% | 7 | Sunrise:05:35 AM Sunset: 08:31 PM |
Moonrise:09:01 PM Moonset: 05:05 AM Moon Phase ( Full Moon ) |
|
| 30 June 2026 Tuesday | Patchy rain nearby |
23.5 ° C (74.3°F) |
36.8 ° C (98.2°F) |
30 ° C (86°F) |
% 64 | 36% | 6 | Sunrise:05:35 AM Sunset: 08:31 PM |
Moonrise:09:39 PM Moonset: 06:04 AM Moon Phase ( Full Moon ) |
|
| 01 July 2026 Wednesday | Patchy rain nearby |
22.7 ° C (72.9°F) |
34.4 ° C (93.8°F) |
28.3 ° C (82.9°F) |
% 70 | 36% | 6 | Sunrise:05:35 AM Sunset: 08:31 PM |
Moonrise:10:11 PM Moonset: 07:06 AM Moon Phase ( Waning Gibbous ) |
|
| 02 July 2026 Thursday | Sunny |
21.7 ° C (71.1°F) |
30.3 ° C (86.6°F) |
25.9 ° C (78.6°F) |
% 52 | 2% | 7 | Sunrise:05:36 AM Sunset: 08:31 PM |
Moonrise:10:37 PM Moonset: 08:08 AM Moon Phase ( Waning Gibbous ) |
|
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