St. Lawrence River Travel Guide
St. Lawrence River travel guide: interactive map, live weather, best time to visit, things to do and nearby places.
Active alerts for St. Lawrence River
Derived from the forecast. No official alert feed is wired for this country yet.
Summary
St. Lawrence River is a river in Quebec. St. Lawrence River is a river known as the Great Lakes outlet to the Atlantic.
Right now it is 39°F (4°C) in St. Lawrence River with clear. It feels like 33°F. Today runs from 34°F to 55°F. Chance of precipitation is 33%. Sightseeing conditions score 6.9/10 - fair - plan around the weather.
The best time to visit St. Lawrence River is September. The climate is subarctic. January, March and December tend to be the least comfortable months. July is the warmest month with average highs near 78°F, while February is the coldest with lows near 4°F.
The closest major airport is Montreal-Trudeau International Airport (YUL), about 153 mi away. Nearby highlights include Baxter State Park, Mont-Tremblant National Park, Mount Washington and Franconia Notch State Park.
In plain terms. Today is about average for October. The forecast high of 55°F is in line with the 57°F typical for this month. The best window to be outside is roughly 1 PM to 4 PM, when temperature, rain chance and wind line up best. stargazing is the strongest bet in St. Lawrence River today at 9/10. Overnight lows near 34°F mean ice is possible on bridges before dawn.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Map of St. Lawrence River
Interactive map with nearby places. Switch between street, terrain and satellite views.
Coordinates: 46°48′50″N 71°12′28.8″W (46.8139, -71.208)
Weather in St. Lawrence River right now
Source: Open-Meteo. Updated 8:10 PM, Oct 26 local time.
Weekend outlook
🌤️ 46° / 34°
Mainly clear · 4% rain · wind 9 mph
🌦️ 46° / 33°
Light drizzle · 21% rain · wind 8 mph
Quick facts about St. Lawrence River
| Type | River |
|---|---|
| State | Quebec |
| Country | Canada |
| Continent | North America |
| Coordinates | 46°48′50″N 71°12′28.8″W (46.8139, -71.208) |
| Length | 744 mi |
| Known for | the Great Lakes outlet to the Atlantic |
| Local time | 8:10 PM (UTC-04:00) |
| Best months | September |
| Climate | Subarctic |
Things to do in St. Lawrence River
Attractions, parks and landmarks in and around St. Lawrence River.
Best time to visit St. Lawrence River
Go in September. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: January, March and December - expect the least comfortable mix of heat, cold or rain.
What to pack, what to skip
- A warm mid-layer and gloves for early mornings and evenings
- A packable rain shell - 2 of the next 7 days carry a real chance of rain
- If your dates are flexible, avoid January, March and December - historically the least comfortable months here.
Airports near St. Lawrence River
Closest airports with IATA codes and distances.
| Airport | Code | Distance | Serves |
|---|---|---|---|
| Montreal-Trudeau International Airport | YUL | 153 mi | Montreal |
| Boston Logan International Airport | BOS | 308 mi | Boston |
Explore St. Lawrence River
Every topic we hold for this place, and the same topic for the places around it.
Travel Guide 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 North America.
What is the weather like in St. Lawrence River right now?
It is currently 39°F (4°C) with clear. Humidity is 69% and wind is 5 mph.
When is the best time to visit St. Lawrence River?
September offer the most comfortable conditions in St. Lawrence River, which has a subarctic climate. January, March 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 8:10 PM.
What is the nearest airport to St. Lawrence River?
The closest airports are Montreal-Trudeau International Airport (YUL), 153 mi away and Boston Logan International Airport (BOS), 308 mi away.
What are the top things to do in St. Lawrence River?
Popular options include Baxter State Park, Mont-Tremblant National Park, Mount Washington, Franconia Notch State Park and Acadia National Park.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (rivers) - coordinates, hierarchy and facts. |
|---|---|
| Map tiles | OpenStreetMap contributors, CARTO and Esri. |
| Elevation | Open-Meteo digital elevation model where the dataset has no value. |
| Method | Scores, 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 October 26, 2026 at 8:10 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
