 |
 Current Islip Weather Conditions |
Updated January 18th at 3:56 pm |
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| light snow mist |
| Temperature: | 34°F |
Dew Point: | 32°F |
| Barometer: | 29.86 inHg |
Wind: | N 15 Mph |
| Humidity: | 93.0% |
Visibility: | 0M |
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| Islip Weather Forecast Summary |
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Today
Jan 18th
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Monday
Jan 19th
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Tuesday
Jan 20th
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Wednesday
Jan 21st
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Thursday
Jan 22nd
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Mix of rain and snow |
Cloudy |
Cloudy |
Cloudy |
Cloudy |
36°F
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33°F
25°F |
24°F
22°F |
38°F
22°F |
36°F
26°F |
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| Islip Detailed Weather Forecast |
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| Sunday, January 18th, 2026 |
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Evening |
Temperature: 32°F |
| Cloudy with a few flurries or showers. Windy at times. |
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| Monday, January 19th, 2026 |
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Overnight |
Temperature: 28°F |
| Cloudy with a chance of flurries. Windy at times. |
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Morning |
Temperature: 29°F |
| Sunny with cloudy periods. Wind 20 to 30 mph. |
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Afternoon |
Temperature: 33°F |
| Sunny with cloudy periods. Wind 20 to 30 mph. |
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Evening |
Temperature: 26°F |
| Clear. Wind 20 to 30 mph. |
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| Tuesday, January 20th, 2026 |
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Overnight |
Temperature: 23°F |
| Clear. Windy. |
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Morning |
Temperature: 22°F |
| Cloudy. Windy. |
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Afternoon |
Temperature: 24°F |
| Cloudy. Windy. |
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Evening |
Temperature: 23°F |
| Clear. Windy. |
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| Wednesday, January 21st, 2026 |
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Overnight |
Temperature: 22°F |
| Clear. Windy at times. |
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Morning |
Temperature: 27°F |
| Cloudy. Windy. |
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Afternoon |
Temperature: 34°F |
| Cloudy. Windy. |
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Evening |
Temperature: 37°F |
| Clear with cloudy periods. Windy. |
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| Thursday, January 22nd, 2026 |
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Overnight |
Temperature: 36°F |
| Mostly cloudy. Windy at times. |
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Morning |
Temperature: 35°F |
| Cloudy with a chance of flurries or showers. Risk of freezing rain. Windy at times. |
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Afternoon |
Temperature: 35°F |
| Sunny with a slight chance of showers. Showers possibly mixed with wet flurries. Wind 20 to 30 mph. |
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Evening |
Temperature: 28°F |
| Clear with cloudy periods. Wind 20 to 30 mph. |
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| Friday, January 23rd, 2026 |
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Overnight |
Temperature: 25°F |
| Clear. Wind 20 to 30 mph. |
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Morning |
Temperature: 26°F |
| A mix of cloud and sun. Windy. |
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Afternoon |
Temperature: 29°F |
| Cloudy. Windy at times. |
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Evening |
Temperature: 31°F |
| Cloudy. Windy at times. |
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| Saturday, January 24th, 2026 |
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Overnight |
Temperature: 37°F |
| Cloudy. Windy at times. |
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Morning |
Temperature: 37°F |
| Cloudy with a chance of showers. Showers possibly mixed with wet flurries. Windy at times. |
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Afternoon |
Temperature: 33°F |
| Cloudy with flurries or showers. |
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Evening |
Temperature: 31°F |
| Cloudy with a few flurries or showers. Wind 20 to 30 mph. |
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| Sunday, January 25th, 2026 |
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Overnight |
Temperature: 17°F |
| Cloudy. Wind 20 to 30 mph. |
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Morning |
Temperature: 8°F |
| Cloudy. Wind 20 to 30 mph. |
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Afternoon |
Temperature: 6°F |
| Sunny with cloudy periods. Wind 20 to 30 mph. |
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Evening |
Temperature: 11°F |
| Cloudy. Wind 20 to 30 mph. |
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| Monday, January 26th, 2026 |
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Overnight |
Temperature: 16°F |
| Cloudy. Wind 25 to 40 mph. |
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Morning |
Temperature: 19°F |
| Cloudy. Wind 25 to 40 mph. |
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Afternoon |
Temperature: 20°F |
| Cloudy. Wind 25 to 40 mph. |
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Evening |
Temperature: 19°F |
| A mix of cloudy and clear skies. Wind 20 to 30 mph. |
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