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Sparta Lake, NJ Weather Forecast
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Sparta Lake Weather Forecast
| TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY |
 |  |  |  |  | | |  |  |  |  | |
| Chance of T-Storm | Chance of T-Storm | Partly Cloudy | Sunny | Mostly Clear | Mostly Sunny | Partly Cloudy | Partly Sunny | Mostly Cloudy | Chance of Showers | Chance of Showers | Chance of Showers |
| Lo: 65°FLo: 18°C | Hi: 81°FHi: 27°C | Lo: 59°FLo: 15°C | Hi: 81°FHi: 27°C | Lo: 59°FLo: 15°C | Hi: 81°FHi: 27°C | Lo: 65°FLo: 18°C | Hi: 81°FHi: 27°C | Lo: 69°FLo: 21°C | Hi: 85°FHi: 29°C | Lo: 69°FLo: 21°C | Hi: 81°FHi: 27°C |
| POP: 100% | POP: 20% | POP: 50% | POP: 50% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 400 PM EDT Thu Aug 27 2026 
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Issued: 318 PM EDT Thu Aug 27 2026
Key Messages
1. The threat of strong to severe thunderstorms and flash flooding will continue through this evening.
2. A cold front is expected to pass through the area on Friday.
Discussion
... KEY MESSAGE 1...The threat of strong to severe thunderstorms and flash flooding will continue through this evening.
Widespread showers and thunderstorms continue to impact much of New Jersey and portions of eastern Pennsylvania and Delaware this afternoon. The greatest threat from these storms will continue t...