Blackheath

Haldimand County, Ontario, Canada

Current Weather

15°60°

Clear

Feels Like: -2°29°

Min: 1°33°

Max: 19°66°

The next few hours will be foggy, with today reaching 19°C and dropping to 5°C. The coming days will be mostly cloudy until afternoon, returning overnight.

Hourly Forecast

13°56°16°60°17°63°18°65°19°66°18°64°16°61°14°57°11°53°10°50°10°50°10°49°10°50°9°48°9°49°8°47°7°45°5°42°5°42°5°41°5°40°4°40°4°39°3°38°
11am
12pm
1pm
2pm
3pm
4pm
5pm
6pm
7pm
8pm
9pm
10pm
11pm
12am
1am
2am
3am
4am
5am
6am
7am
8am
9am
10am
Today
Tomorrow

Want a closer look at the weather?

Premium adds minute-by-minute rain timing, yesterday comparisons, and more detail across Airpult.

Get Premium

Air Quality

26
Good

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

GoodHazardous

Daylight Hours

07:53

Sunrise

18:12

Sunset

10 hours 19 minutes of sunlight today

Moon

17:44

Moonrise

07:08

Moonset

Daily Forecast

Today

1°33°
19°66°

Monday

3°38°
9°49°

Tuesday

0°31°
7°45°

Wednesday

-1°30°
9°49°

Thursday

0°32°
9°48°

Friday

0°32°
7°45°

Saturday

-1°31°
7°44°

Sunday

0°32°
7°44°

Sunday

1°34°
13°55°

Monday

4°38°
15°59°

UV Index

Wear sunscreen
3Moderate
LowExtreme

Humidity

52%Comfortable
LowHigh

Looking at the night sky?

See moon phases, eclipses, and seasons for this year.

View astronomy

Current stargazing conditions?

See sky darkness, moon phase, and the best viewing window for Blackheath.

View stargazing score

Weather in Blackheath today, October 25, 2026

Misty spells are likely in Blackheath on October 25, 2026, especially during quieter hours. The day can open dull before any clearer intervals arrive. Expect a brighter morning, with limited cloud around 2% by 11:00. Conditions start on a settled note.Misty spells are likely in Blackheath on October 25, 2026, especially during quieter hours. The day can open dull before any clearer intervals arrive. Expect a brighter morning, with limited cloud around 2% by 11:00. Conditions start on a settled note.

Temperatures climb from an overnight low near 1°C toward a daytime high of about 19°C. The air stays humid, with relative humidity between 30% and 91% and the peak around 22:00. A lighter breeze peaks around 17:00 near 16 km/h.Temperatures climb from an overnight low near 33°F toward a daytime high of about 66°F. The air stays humid, with relative humidity between 30% and 91% and the peak around 22:00. A lighter breeze peaks around 17:00 near 10 mph.

The afternoon keeps an overcast feel, as cloud reaches about 100% around 16:00. Outdoor plans may still want a flexible backup. Expect visibility near 16 km, with poorer spells close to 15.6 km. Daylight runs from 07:53 to 18:12, lasting 10 hours 19 minutes of sunlight today.The afternoon keeps an overcast feel, as cloud reaches about 100% around 16:00. Outdoor plans may still want a flexible backup. Expect visibility near 10 mi, with poorer spells close to 9.7 mi. Daylight runs from 07:53 to 18:12, lasting 10 hours 19 minutes of sunlight today.

Taken together, murky spells in Blackheath on October 25, 2026 favour slower morning movement before any clearer air arrives.Taken together, murky spells in Blackheath on October 25, 2026 favour slower morning movement before any clearer air arrives.

Frequently asked questions about weather in Blackheath

How warm does it get in Blackheath?

The warmest month in Blackheath is July, with average high temperatures of 26°C. The average temperature during this period is around 23°C.The warmest month in Blackheath is July, with average high temperatures of 79°F. The average temperature during this period is around 73°F.

How cold does it get in Blackheath?

The coldest month in Blackheath is January, with average low temperatures of -5°C. The average temperature during this period is around -2°C.The coldest month in Blackheath is January, with average low temperatures of 24°F. The average temperature during this period is around 28°F.

What is the wettest time of year in Blackheath?

The wettest month in Blackheath is April, with an average of 100 mm of precipitation.The wettest month in Blackheath is April, with an average of 3.9 in of precipitation.

What is the driest time of year in Blackheath?

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

View full climate insights for Blackheath →