Potsdam, NY 13676 Monthly Weather

St. Lawrence County6:18 PM EDT44.66°N, 74.97°W
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October 2026

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168°/55°0.10 inAvg 64°/42°
266°/50°0.73 inAvg 64°/42°
360°/36°Avg 63°/42°
470°/35°0.10 inAvg 63°/41°
557°/42°Avg 62°/41°
655°/37°Avg 62°/41°
768°/40°0.14 inAvg 61°/40°
865°/47°<0.01 inAvg 61°/40°
961°/34°0.03 inAvg 60°/40°
1056°/29°Avg 60°/39°
1168°/37°Avg 60°/39°
1260°/47°0.09 inAvg 59°/39°
1347°/43°1.95 inAvg 59°/38°
1455°/45°<0.01 inAvg 58°/38°
1554°/38°Avg 58°/38°
1657°/40°0.64 inAvg 57°/37°
1744°/30°Avg 57°/37°
1860°/32°Avg 56°/37°
1966°/38°Avg 56°/36°
20Avg 56°/36°
21 Sunny 59°/31°Avg 55°/36°
22 Mostly Sunny 53°/33°Avg 55°/36°
23 Sunny 50°/28°Avg 54°/35°
24 Sunny 54°/34°Avg 54°/35°
25 Sunny 61°/44°Avg 54°/34°
26 Partly Sunny 59°/36°Avg 53°/34°
27 Mostly Sunny 50°/31°Avg 53°/34°
28 Light rain 50°/33°Avg 52°/34°
29 Sunny 65°/49°Avg 52°/33°
30 Cloudy 57°/46°Avg 52°/33°
31Avg 51°/32°
Average high60° (normal 60°)
Average low40° (normal 39°)
Warmest / coldest70° / 29°
Precipitation3.79 in (normal 2.15 in to date)
Record high today77° (1979)
Record low today20° (1948)

Observed: Massena Intl Ap, 32 km away, records since 1948. Normals 1991–2020. Climate data from NOAA's Regional Climate Centers (ACIS); recent days are preliminary. Days ahead: the forecast.

Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Conservative index and reflects what the press published. Terms of use.