Potsdam, NY Weather

St. Lawrence County11:33 PM EDT44.67°N, 74.98°WElevation 433 ft

Current conditions

Clear
34°
Clear
Feels like 34°
High 55° Wednesday·Low 32° tonight
WindCalm
Humidity100%
Dew point34°
Visibility10 mi
Cloud cover2%
UV index0 Low
Sunrise7:22 AM
Sunset6:09 PM

Observed at Massena, Massena International-Richards Field · 33 min ago

Forecast

10-day

  • Tonight

    Clear, with a low around 32. Northeast wind around 1 mph.

  • Wednesday

    Sunny, with a high near 55. Northeast wind around 3 mph.

  • Wednesday Night

    Mostly clear, with a low around 34. South wind around 1 mph.

National Weather Service forecast updated 4 hrs ago.

Hourly

Hourly forecast
  1. Now Clear 37°
  2. Wed12 AM Clear 36°
  3. 1 AM Clear 36°
  4. 2 AM Clear 35°
  5. 3 AM Clear 35°
  6. 4 AM Clear 34°
  7. 5 AM Clear 33°
  8. 6 AM Sunny 33°
  9. 7 AM Sunny 32°
  10. 8 AM Sunny 33°
  11. 9 AM Sunny 37°
  12. 10 AM Sunny 43°
  13. 11 AM Sunny 47°
  14. 12 PM Sunny 51°
  15. 1 PM Sunny 53°
  16. 2 PM Sunny 54°
  17. 3 PM Sunny 55°
  18. 4 PM Sunny 54°
  19. 5 PM Sunny 53°
  20. 6 PM Clear 49°
  21. 7 PM Clear 44°
  22. 8 PM Clear 40°
  23. 9 PM Clear 39°
  24. 10 PM Clear 38°

10-day forecast

Details
  1. TonightOct 20 Clear Clear32°
  2. WedOct 21 Sunny Sunny34°55°
  3. ThuOct 22 Mostly Sunny Mostly Sunny29°53°
  4. FriOct 23 Patchy Freezing Fog then Sunny Patchy Freezing Fog then Sunny29°48°
  5. SatOct 24 Sunny Sunny37°55°
  6. SunOct 25 Sunny Sunny46°61°
  7. MonOct 26 Partly Sunny Partly Sunny16%39°58°
  8. TueOct 27 Slight Chance Rain Showers then Partly Sunny Slight Chance Rain Showers then Partly Sunny16%49°
  9. WedOct 28 Cloudy Cloudy33°45°
  10. ThuOct 29 Sunny Sunny35°53°

Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.

Radar

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Weather news in New York

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Air quality

27
Good
Ozone

Air quality is satisfactory, and air pollution poses little or no risk.

Forecast

  • TueGood (13)
  • WedGood (15)

Adirondacks Region, NY reporting area · 1 hr ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.

Sun & moon

Sunrise 7:22 AM
Sunset 6:09 PM
Daylight 10 h 46 min (−2 min 58 s tomorrow)
Waxing Gibbous · 74% lit
Moonrise 3:37 PM Moonset 1:03 AM
Full moon Oct 26 New moon Nov 9

Almanac

Monthly
Normal high / low56° / 36°
Record high78° (1995)
Record low16° (1972)
Wettest1.67 in (1989)
Yesterday66° / 38°
Month to date3.79 in (normal 2.15 in)

Massena Intl Ap, records since 1948. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).

Nearby

Forecasters' discussion

From the National Weather Service office in BTV, issued 4 hrs ago

What Has Changed

As of 218 PM EDT Tuesday...

No significant changes to the current forecast.

Key Messages

As of 218 PM EDT Tuesday...

1. Large ridge of surface high pressure will keep conditions dry with seasonable temperatures through late week.

2. Dry and seasonable conditions continue through the beginning of next week.

Discussion

As of 218 PM EDT Tuesday...

KEY MESSAGE 1: Period of dry weather continues for the north country as large ridge of surface high pressure nudges into our area out of Canada. Lots of dry air remains in place, and winds are out of the north following the passage of a weak surface boundary this morning. After afternoon ranging highs ranging through the 50s today, minimum temperatures overnight will dip into the mid 20s to mid 30s, warmest along Lake Champlain where the temperatures will be closer to 40. Ideal radiational cooling conditions, will also lead to some patchy fog developing in the typically fog prone spots. Surface high will retreat to the north and east of our area tomorrow as a Nor'easter meanders off the east coast. Wednesday night a weak cold front will cross our area, bringing colder conditions for Thursday and Friday to close out the work week, with another surface ridge of high pressure building into our area from the northwest. Maximum temperatures on Friday will struggle to get out of the 40s. Winds will also be brisk out of the north, especially on Thursday.

KEY MESSAGE 2: A classic stretch of fall weather will continue this weekend and into the beginning of next week. Surface high pressure will be centered almost directly overhead over the weekend, leading to clear skies, light winds and highs in the 50s. Most mornings will be frosty with lows in the 20s and 30s. A moisture starved cold front moves through Monday and Monday night and while a brief sprinkle or mountain flurry is possible during its passage, it will be pretty much completely dry. Temperatures rise to around 60 Monday, before highs drop back into the 50s and potentially upper 40s for Tuesday.

Aviation

Through 00Z Thursday...Mainly VFR conditions are expected under clear skies. Some fog is possible this evening, given the favorable radiational cooling. However, dry conditions may prevent fog formation. Trends for fog have decreased some, and have thus trended fog in TEMPOs towards 3 or 4SM with the highest probabilities at KMPV and KMSS, with the primary window between 09z-12z. Light and variable flow, with terrain southeasterly winds at KRUT will remain through about 12-14z, and then trend increasingly variable after 14z.

Outlook...

Wednesday Night: VFR. NO SIG WX. Thursday: VFR. NO SIG WX. Thursday Night: VFR. NO SIG WX. Friday: VFR. NO SIG WX. Friday Night: VFR. NO SIG WX. Saturday: VFR. NO SIG WX. Saturday Night: VFR. NO SIG WX. Sunday: VFR. NO SIG WX.

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.