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Renfrew County
Renfrew County
Ontario, Canada

Chalk River

Chalk River is a village in Ontario, Canada. It has a population of about 1,025. The climate is classified as warm-summer humid continental (Köppen Dfb), with warm summers, cold winters and precipitation in every season.

Now11°C
Best timeMay · Aug–Sep
Population1,025
Local time10:38
46.02° N, 77.45° WElevation 161 mUTC−4 · Eastern Daylight Time
The year in Chalk Riverweather score
JanFebMarAprMayJunJulAugSepOctNovDec32October
October: high / low12° / 4°
Rain this month74mm
Best timeMay · Aug–Sep

Best: May · Aug–Sep. Warmth, sunshine and dry days, month by month.

Chalk River at a glance

Best time to visitMay · Aug–Sep

The months with the highest weather score

Warmest month26°C

Average high in July

Coolest month-16°C

Average low in January

Wettest monthAugust

87 mm of rain

Driest monthFebruary

48 mm of rain

Monuments nearby3+

within 118 km

Weather in Chalk River

Now and the next ten days. The 14 and 30-day outlooks are one click away.

14-day forecast
11°C

Cloudy · wind 13 km/h · humidity 74%

Today hour by hour
Today22 Oct12°3°
Fri23 Oct10°1°
Sat24 Oct14°1°
Sun25 Oct17°1°2.4 mm
Mon26 Oct12°2°2.2 mm
Tue27 Oct6°0°
Wed28 Oct8°-1°
Thu29 Oct19°2°2.4 mm
Fri30 Oct9°1°
Sat31 Oct11°1°

When to go to Chalk River

Each month's weather score (warmth, sun, dry days) with its temperatures and rain.

Climate month by month
JanFebMarAprMayJunJulAugSepOctNovDec
Score302426267066666777322116
High-6°-4°2°11°18°23°26°24°20°12°4°-2°
Low-16°-14°-8°0°7°13°16°15°11°4°-2°-11°
Rain (mm)554853607883868790747362
Wet days8111112111313148121113

What's on in Chalk River

Concerts, football matches, the public holidays ahead and the town's festivals through the year.

Monuments and museums in Chalk River

All monuments

Outdoors around Chalk River

Hiking routes from the town, and what there is to do within 15 km: huts, viewpoints, climbing, camping, ski areas and dive sites.

Oiseau RockViewpoints
11 km

Nature around Chalk River

Nature in Canada

Wildlife in October

The birds and mammals of Canada seen most this month, compared with the rest of their year.

The sky over Chalk River

Eclipses and meteor showers

Earthquakes around Chalk River

The last 30 days within 300 km, and the record since 1950.

Earthquakes

Towns and villages around Chalk River

Each with its own page: weather, climate and the best time to visit.

Chalk River from above

Getting to Chalk River

Ottawa / Rockcliffe AirportYRO
153 km
Ottawa / Gatineau AirportYND
156 km
North Bay Jack Garland AirportYYB
157 km

Places near Chalk River

Places with a climate like Chalk River

Matched month by month on temperature, rain and sunshine.

Frequently asked questions

When is the best time to visit Chalk River?
Based on 30-year climate normals, May, August and September offer the best balance of comfortable temperatures, low rainfall and sunshine in Chalk River.
What is the hottest month in Chalk River?
July is the warmest month, with average highs of 26°C and lows of 16°C.
What is the coldest month in Chalk River?
January is the coldest month, with average highs of -6°C and lows of -16°C.
What is the rainiest month in Chalk River?
August is the wettest month with about 87 mm of precipitation on 14 wet days.