River in Quebec

St. Lawrence River Vejr Prognose

St. Lawrence River weather: 5°C, klart. Hver time forecast, 14-day outlook, UV, air quality and the best time og visit.

🌙 5°C now🕔 10:39 AM local📅 Best: juli, august and september

Resumé

St. Lawrence River is a river in Quebec. St. Lawrence River is a river known as the Great Lakes outlet og the Atlantic.

Lige nu er det 5°C (41°F) in St. Lawrence River med klart. Det føles som 3°C. I dag ligger temperaturen mellem 5°C og 17°C. Sandsynligheden for nedbør er 13%. Sightseeing conditions score 7.7/10 - gode forhold.

Det bedste tidspunkt at besøge St. Lawrence River is juli, august and september. Klimaet er subarctic. januar, marts and december tend og be the least comfortable months. juli is the warmest month med average highs near 26°C, while februar is the coldest med lows near -16°C.

The closest major airport is mantreal-Trudeau International Airport (YUL), about 246 km away. Nearby highlights include Baxter State Park, mant-Tremblant National Park, Mount Washington and Franconia Notch State Park.

Kort sagt. Today is cooler than average for september. The forecast high of 17°C is 4.2°C below the 21°C typical for this month. The best window og be outside is roughly 3 PM og 6 PM, when temperature, rain chance and wind line up best. stargazing is the strongest bet in St. Lawrence River today at 9.5/10. No weather-related travel disruption is expected today. Roads and airports should run normally.

Compiled from this page's own data: atlas facts plus live Open-Meteo readings.

Vejret i St. Lawrence River lige nu

🌙
5°C
Klart · feels like 3°C
Luftfugtighed92%
Vind7 km/h S
Vindstød9 km/h
UV-indeks0 · Lav
Skydække3%
Tryk1021 hPa
SigtbarhedGood · 13 km
Luftkvalitet52 · Moderat
Solopgang6:22 AM
Solnedgang6:56 PM
Måne🌒 Waxing crescent · 13%

Open-Meteo Updated 10:39 AM, sep 15 local time.

Næste 24 timer

Temperatur, nedbørssandsynlighed og vind time for time.

7 AM☀️0%6 km/h
8 AM☀️0%5 km/h
9 AM🌤️0%2 km/h
10 AM☁️10°0%3 km/h
11 AM☁️12°0%4 km/h
12 PM☁️14°0%4 km/h
1 PM☁️15°0%3 km/h
2 PM16°0%2 km/h
3 PM☁️16°1%2 km/h
4 PM☁️17°1%4 km/h
5 PM☁️16°0%4 km/h
6 PM☁️16°3%2 km/h
7 PM☁️15°7%1 km/h
8 PM☁️15°10%2 km/h
9 PM☁️14°8%4 km/h
10 PM☁️14°8%6 km/h
11 PM☁️13°13%6 km/h
12 AM☁️13°13%5 km/h
1 AM☁️13°11%3 km/h
2 AM☁️13°10%3 km/h
3 AM☁️14°8%2 km/h
4 AM☁️14°5%6 km/h
5 AM☁️13°4%5 km/h
6 AM☁️13°2%5 km/h

16-day forecast for St. Lawrence River

Maks. / Min.; Nedbør; UV

DagForholdMaks. / Min.NedbørVindUV
tir, sep 15☁️ Overskyet17° / 5°13%6 km/h5
ons, sep 16☁️ Overskyet20° / 11°13%16 km/h5
tor, sep 17☁️ Overskyet18° / 10°4%15 km/h5
fre, sep 18🌦️ Støvregn17° / 8°4% · 1 mm18 km/h5
lør, sep 19☁️ Overskyet16° / 5°8%12 km/h5
søn, sep 20☁️ Overskyet20° / 7°40%15 km/h5
man, sep 21☁️ Overskyet15° / 7°13%7 km/h4
tir, sep 22☁️ Overskyet15° / 6°13%20 km/h4
ons, sep 23🌦️ Let regn11° / 10°14% · 22 mm20 km/h0
tor, sep 24🌧️ Heavy drizzle15° / 10°15% · 4 mm11 km/h2
fre, sep 25☁️ Overskyet21° / 12°17%11 km/h3
lør, sep 26🌤️ Mest klart22° / 14°19%8 km/h5
søn, sep 27☁️ Overskyet22° / 12°20%20 km/h4
man, sep 28☁️ Overskyet22° / 14°20%18 km/h3
tir, sep 29☁️ Overskyet16° / 10°15%16 km/h4
ons, sep 30☀️ Klar himmel-- / --20%--

Klima in St. Lawrence River month by month

Average high, average low and total rainfall, based on three years of reanalysis data.

janfebmaraprmajjunjulaugsepoktnovdecLine: average high · Bars: rainfall
MånedAvg highAvg lowRegnfallRating
januar-6°-15°69 mm★★☆☆☆
februar-5°-16°50 mm★★☆☆☆
marts-9°105 mm★★☆☆☆
april-1°124 mm★★☆☆☆
maj17°127 mm★★★☆☆
juni23°12°176 mm★★★☆☆
juli26°16°129 mm★★★★
august24°14°119 mm★★★★
september21°11°72 mm★★★★
oktober14°90 mm★★★☆☆
november-3°90 mm★★☆☆☆
december-3°-12°97 mm☆☆☆☆

Klima type: Subarctic. Kilde: Open-Meteo archive (ERA5).

Vejr map for St. Lawrence River

Animated model layers. Pick a layer og load it.

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Animated layers by Vindy. For pin-level detail and nearby places, see the interactive map below.

Luftkvalitet and pollen in St. Lawrence River

52
Moderat
Unusually sensitive people should limit long outdoor exertion.
PM2.513.1 µg/m³
PM1014.8 µg/m³
Ozone39 µg/m³
NO₂8.1 µg/m³
UV-indeks0 · Lav
Airborne hazeLight haze

Luftkvalitet: Open-Meteo (CAMS). US AQI scale.

søn, twilight and moon

Solopgang6:22 AM
Solnedgang6:56 PM
Daglight12h 34m
Solar noon12:39 PM
Golden hour (am)6:22 AM - 7:22 AM
Golden hour (pm)5:56 PM - 6:56 PM
Blue hour (am)5:52 AM - 6:22 AM
Blue hour (pm)6:56 PM - 7:26 PM
Måne phase🌒 Waxing crescent · 13%
Månerise11:35 AM
Måneset8:35 PM

Golden and blue hour are the standard photographic approximation around sunrise and sunset.

Bedste rejsetid St. Lawrence River

Go in juli, august and september. These months score highest on comfortable temperatures, low rainfall and useful daylight.

Hardest months: januar, marts and december - expect the least comfortable mix of heat, cold or rain.

januar★★☆☆☆
februar★★☆☆☆
marts★★☆☆☆
april★★☆☆☆
maj★★★☆☆
juni★★★☆☆
juli★★★★
august★★★★
september★★★★
oktober★★★☆☆
november★★☆☆☆
december☆☆☆☆

Explore St. Lawrence River

Every topic we hold for this place, and the same topic for the places around it.

Vejr for related places

Frequently asked questions

Where is St. Lawrence River?

St. Lawrence River is a river in Quebec. Its coordinates are 46.8139, -71.208. It lies in Nordamerika.

What is the weather like in St. Lawrence River lige nu?

It is currently 5°C (41°F) med klart. Luftfugtighed is 92% and wind is 7 km/h.

When is the best time og visit St. Lawrence River?

juli, august and september offer the most comfortable conditions in St. Lawrence River, which has a subarctic climate. januar, marts and december are usually the hardest months for outdoor plans.

What time zone is St. Lawrence River in?

St. Lawrence River observes America/Toronto (UTC-04:00). The local time is 10:39 AM.

What is the nearest airport og St. Lawrence River?

The closest airports are mantreal-Trudeau International Airport (YUL), 246 km away and Boston Logan International Airport (BOS), 495 km away.

What are the top things og do in St. Lawrence River?

Popular options include Baxter State Park, mant-Tremblant National Park, Mount Washington, Franconia Notch State Park and Acadia National Park.

Related articles

Data sources and methodology

Place dataUSPOTUS Atlas dataset (rivers) - coordinates, hierarchy and facts.
Prognose and observationsOpen-Meteo (ECMWF and national models).
Luftkvalitet and pollenCopernicus CAMS via Open-Meteo. US AQI scale.
Klima averagesERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years.
MethodScores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown.

Last updated september 15, 2026 at 10:39 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.

Davil Hofile
Written byWriter at USPOTUS

Davil Hofile is a writer at USPOTUS covering breaking news, NFL updates, viral stories, entertainment, pets, and lifestyle. He specializes in transforming complex news into clear, trustworthy, and engaging articles that help readers quickly understand what's happening across the United States. His reporting follows Google's E-E-A-T guidelines, emphasizing accuracy, credible sources, and practical value for readers.

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