Castle Island

Summer Village of Castle Island, Alberta, Canada

Current Weather

-1°30°

Mostly Clear

Feels Like: -6°22°

Min: -2°28°

Max: 6°43°

The next few hours will be partly cloudy, with today reaching 6°C and dropping to -1°C. The coming days will be drizzle

Hourly Forecast

-1°30°-2°29°-2°28°-1°30°-2°29°-1°30°0°32°2°35°3°38°5°40°5°41°6°43°6°43°6°43°5°42°4°40°3°38°3°37°2°36°2°35°1°34°1°34°1°34°0°32°
4am
5am
6am
7am
8am
9am
10am
11am
12pm
1pm
2pm
3pm
4pm
5pm
6pm
7pm
8pm
9pm
10pm
11pm
12am
1am
2am
3am
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

20
Good

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

GoodHazardous

Daylight Hours

08:37

Sunrise

18:05

Sunset

9 hours 27 minutes of sunlight today

Moon

17:54

Moonrise

09:31

Moonset

Daily Forecast

Today

-2°28°
6°43°

Tuesday

-1°31°
4°40°

Wednesday

-2°29°
2°35°

Thursday

-4°25°
-1°30°

Friday

-7°19°
0°32°

Saturday

-6°20°
2°36°

Sunday

-4°26°
4°39°

Monday

-3°27°
4°39°

Tuesday

0°32°
7°45°

Wednesday

-2°28°
4°38°

UV Index

No protection needed
0Low
LowExtreme

Humidity

71%Humid
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 Castle Island.

View stargazing score

Weather in Castle Island today, October 26, 2026

Expect a muted, overcast feel in Castle Island on October 26, 2026 as cloud persists. Brighter breaks, if they arrive, should stay brief. The opening hours look fair, as cloud stays near 48% around 10:00. Morning errands should face fewer weather interruptions.Expect a muted, overcast feel in Castle Island on October 26, 2026 as cloud persists. Brighter breaks, if they arrive, should stay brief. The opening hours look fair, as cloud stays near 48% around 10:00. Morning errands should face fewer weather interruptions.

Temperatures climb from an overnight low near -2°C toward a daytime high of about 6°C. The air stays humid, with relative humidity between 55% and 80% and the peak around 08:00. A lighter breeze peaks around 12:00 near 13 km/h.Temperatures climb from an overnight low near 28°F toward a daytime high of about 43°F. The air stays humid, with relative humidity between 55% and 80% and the peak around 08:00. A lighter breeze peaks around 12:00 near 8 mph.

Afternoon skies stay clogged, peaking close to 71% near 22:00. The grey theme continues rather than clearing out. Visibility stays near 16.1 km. Expect sunrise at 08:37, sunset at 18:05, and 9 hours 27 minutes of sunlight today overall.Afternoon skies stay clogged, peaking close to 71% near 22:00. The grey theme continues rather than clearing out. Visibility stays near 10 mi. Expect sunrise at 08:37, sunset at 18:05, and 9 hours 27 minutes of sunlight today overall.

Overall, Castle Island on October 26, 2026 stays grey and muted, so outdoor plans may want a flexible backup even with a high near 6°C.Overall, Castle Island on October 26, 2026 stays grey and muted, so outdoor plans may want a flexible backup even with a high near 43°F.

Frequently asked questions about weather in Castle Island

How warm does it get in Castle Island?

The warmest month in Castle Island is July, with average high temperatures of 24°C. The average temperature during this period is around 17°C.The warmest month in Castle Island is July, with average high temperatures of 74°F. The average temperature during this period is around 63°F.

How cold does it get in Castle Island?

The coldest month in Castle Island is February, with average low temperatures of -14°C. The average temperature during this period is around -10°C.The coldest month in Castle Island is February, with average low temperatures of 6°F. The average temperature during this period is around 13°F.

What is the wettest time of year in Castle Island?

The wettest month in Castle Island is June, with an average of 113 mm of precipitation.The wettest month in Castle Island is June, with an average of 4.4 in of precipitation.

What is the driest time of year in Castle Island?

The driest month in Castle Island is February, with an average of 19 mm of precipitation.The driest month in Castle Island is February, with an average of 0.7 in of precipitation.

View full climate insights for Castle Island →