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Crystal Lake, NJ Weather Forecast
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Crystal Lake Weather Forecast
| TODAY | TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT |
 |  |  |  | |  |  | | | | |  |
| Mostly Sunny | Partly Cloudy | Chance of T-Storm | Chance of T-Storm | Mostly Sunny | Chance of Showers | Chance of Showers | Chance of Showers | Chance of Showers | Chance of Showers | Sunny | Mostly Clear |
| Hi: 89°FHi: 32°C | Lo: 69°FLo: 21°C | Hi: 80°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 81°FHi: 27°C | Lo: 65°FLo: 18°C | Hi: 79°FHi: 26°C | Lo: 65°FLo: 18°C | Hi: 81°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 81°FHi: 27°C | Lo: 61°FLo: 16°C |
| POP: 70% | POP: 60% | POP: 30% | POP: 50% | POP: 50% | POP: 40% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 532 AM EDT Wed Aug 19 2026 
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Crystal Lake Forecast Discussion
Issued: 126 PM EDT Wed Aug 19 2026
Key Messages
1) Showers and potential thunderstorms are expected on Thursday. Embedded stronger thunderstorms and heavy downpours are possible.
2) Unsettled weather this weekend.
Discussion
... .KEY MESSAGE 1... A cold front approaches today and will stall over or near the area through the weekend. The persistent upper level trough over the eastern US continues through this period as well. Shortwave energy currently over the Northern Plains will round the base of this t...