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De Kalb, New York Weather Forecast
De Kalb, New York Weather
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Weather Forecast for De Kalb, New York : St. Lawrence County
Issued: 12:27 am EST Nov 4, 2025 Latitude: 44.4989499 Longitude: -75.3427152 View on Google Maps

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This Afternoon Tonight Wednesday Thursday Friday Saturday Sunday Monday
Mostly Sunny on This Afternoon 20% chance of rain on Tonight 90% chance of rain on Wednesday 30% chance of snow on Thursday 70% chance of freezing rain on Friday 50% chance of rain on Saturday 70% chance of rain & snow on Sunday 50% chance of snow on Monday
High: 51°F Low: 36°F High: 50°F High: 42°F High: 49°F High: 45°F High: 43°F High: 35°F
Low: 32°F Low: 25°F Low: 36°F Low: 29°F Low: 24°F  
Mostly Sunny Rain Rain Snow Freezing Rain Rain Rain & Snow Snow
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Mostly Sunny on This Afternoon This Afternoon... Mostly sunny, with a high near 51. West wind 13 to 16 mph, with gusts as high as 28 mph.
20% chance of rain Tonight Tonight... A 20 percent chance of showers after 2am. Increasing clouds, with a low around 36. Southwest wind 3 to 8 mph. Winds could gust as high as 23 mph.
90% chance of rain Wednesday Wednesday... Showers, mainly after 10am. High near 50. South wind 6 to 8 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
100% chance of rain & snow Wednesday Night Wednesday Night... Rain showers before 5am, then a chance of rain and snow showers. Low around 32. North wind 10 to 13 mph becoming west after midnight. Winds could gust as high as 32 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
30% chance of snow Thursday Thursday... A 30 percent chance of snow showers before 7am. Mostly sunny, with a high near 42. Northwest wind 7 to 11 mph, with gusts as high as 25 mph. Little or no snow accumulation expected.
Increasing Clouds on Thursday Night Thursday Night... Increasing clouds, with a low around 25. Calm wind becoming south around 5 mph after midnight.
70% chance of freezing rain Friday Friday... A chance of freezing rain before 8am, then rain likely. Mostly cloudy, with a high near 49. South wind 7 to 14 mph. Chance of precipitation is 70%.
100% chance of rain Friday Night Friday Night... Rain. Low around 36. South wind 8 to 11 mph. Chance of precipitation is 100%.
50% chance of rain Saturday Saturday... A 50 percent chance of rain. Mostly cloudy, with a high near 45. Northwest wind 6 to 8 mph.
40% chance of rain & snow Saturday Night Saturday Night... A chance of rain before 3am, then a chance of snow. Mostly cloudy, with a low around 29. Calm wind. Chance of precipitation is 40%.
70% chance of rain & snow Sunday Sunday... Rain and snow likely. Mostly cloudy, with a high near 43. Northeast wind 5 to 8 mph becoming west in the afternoon. Chance of precipitation is 70%.
60% chance of rain & snow Sunday Night Sunday Night... Rain and snow likely. Mostly cloudy, with a low around 24. West wind 5 to 7 mph. Chance of precipitation is 60%.
50% chance of snow Monday Monday... A 50 percent chance of snow. Mostly cloudy, with a high near 35. West wind 7 to 9 mph.
Sun Almanac for De Kalb, New York
Sunrise: 06:44 AM
Sunset: 4:46 PM
Civil Sunrise:06:13 AM
Civil Sunset: 5:17 PM
Nautical Sunrise: 05:38 AM
Nautical Sunset: 5:51 PM
Astro Sunrise: 05:05 AM
Astro Sunset: 6:25 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.