| Sun May 19 | Mon May 20 | Tue May 21 | Wed May 22 | |
| Tmin 18-06 |
12°C | 15°C | 19°C | 18°C |
| Tmax 06-18 |
16°C | 24°C | 26°C | 25°C |
| morning 24-06 |
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| a.m. 06-12 |
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| p.m. 12-18 |
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| evening 18-24 |
| Nearby Forecast Locations - Keyport | Distance |
| Matawan | 5.6 km |
| Middletown | 10.1 km |
| Woodbridge | 14.8 km |
| Eatontown | 18.7 km |
| Rahway | 19.4 km |
| Englishtown | 22.5 km |
| South Plainfield | 22.5 km |
| Linden | 22.7 km |
| Freehold | 23.0 km |
| Elizabeth | 24.3 km |
| Roselle | 24.5 km |
| Long Branch | 24.8 km |
| Westfield | 25.0 km |
| Plainfield | 25.1 km |
| Cranford | 25.6 km |
| Asbury Park | 26.4 km |
| Hillside | 27.9 km |
| Red Bank | 28.0 km |
| Union | 28.4 km |
| Belamr | 28.4 km |
| Newark | 29.8 km |
| Forecast: Keyport Region Mainly cloudy with just occasional bright spells or glimpses of the sun likely. Frequent rainfall. The daily high increases from 16 degrees on Sunday to 26 degrees on Tuesday. |