Sydenham

Frontenac County, Ontario, Canada

Current Weather

14°57°

Mostly Cloudy

Feels Like: 13°55°

Min: -1°30°

Max: 15°59°

The next few hours will be clear, with today reaching 15°C and dropping to 8°C. The coming days will be drizzle

Hourly Forecast

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Air Quality

32
Good

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

GoodHazardous

Daylight Hours

07:42

Sunrise

17:57

Sunset

10 hours 14 minutes of sunlight today

Moon

17:28

Moonrise

06:57

Moonset

Daily Forecast

Today

-1°30°
15°59°

Monday

5°41°
13°55°

Tuesday

-1°30°
8°46°

Wednesday

-1°31°
11°51°

Thursday

8°46°
17°62°

Friday

8°46°
16°60°

Saturday

6°44°
14°58°

Sunday

8°47°
15°58°

Sunday

8°46°
13°56°

Monday

2°36°
8°46°

UV Index

No protection needed
1Low
LowExtreme

Humidity

71%Humid
LowHigh

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Weather in Sydenham today, October 25, 2026

Misty spells are likely in Sydenham on October 25, 2026, especially during quieter hours. The day can open dull before any clearer intervals arrive.Misty spells are likely in Sydenham on October 25, 2026, especially during quieter hours. The day can open dull before any clearer intervals arrive.

Temperatures climb from an overnight low near -1°C toward a daytime high of about 15°C. Moisture in the air spans 69%-85%, with the highest values around 23:00. A lighter breeze peaks around 16:00 near 16 km/h.Temperatures climb from an overnight low near 30°F toward a daytime high of about 59°F. Moisture in the air spans 69%-85%, with the highest values around 23:00. A lighter breeze peaks around 16:00 near 10 mph.

Afternoon skies stay clogged, peaking close to 100% near 19:00. The grey theme continues rather than clearing out. Expect visibility around 16.1 km. Daylight runs from 07:42 to 17:57, lasting 10 hours 14 minutes of sunlight today.Afternoon skies stay clogged, peaking close to 100% near 19:00. The grey theme continues rather than clearing out. Expect visibility around 10 mi. Daylight runs from 07:42 to 17:57, lasting 10 hours 14 minutes of sunlight today.

In short, fog or mist is the watchpoint in Sydenham on October 25, 2026; leave extra time for travel around a high of 15°C.In short, fog or mist is the watchpoint in Sydenham on October 25, 2026; leave extra time for travel around a high of 59°F.

Frequently asked questions about weather in Sydenham

How warm does it get in Sydenham?

The warmest month in Sydenham is July, with average high temperatures of 26°C. The average temperature during this period is around 22°C.The warmest month in Sydenham is July, with average high temperatures of 79°F. The average temperature during this period is around 72°F.

How cold does it get in Sydenham?

The coldest month in Sydenham is January, with average low temperatures of -9°C. The average temperature during this period is around -6°C.The coldest month in Sydenham is January, with average low temperatures of 15°F. The average temperature during this period is around 21°F.

What is the wettest time of year in Sydenham?

The wettest month in Sydenham is October, with an average of 116 mm of precipitation.The wettest month in Sydenham is October, with an average of 4.6 in of precipitation.

What is the driest time of year in Sydenham?

The driest month in Sydenham is September, with an average of 63 mm of precipitation.The driest month in Sydenham is September, with an average of 2.5 in of precipitation.

View full climate insights for Sydenham →