St. Mary's

Cardston County, Alberta, Canada

Current Weather

-1°29°

Overcast

Feels Like: 8°47°

Min: -2°29°

Max: 4°39°

The next few hours will be overcast, with today reaching 4°C and dropping to -2°C. The coming days will be mostly cloudy throughout the day.

Hourly Forecast

-1°29°-1°29°-1°31°0°32°2°35°3°37°4°38°4°39°4°39°3°38°2°36°1°33°0°32°-1°31°0°32°0°33°1°33°0°33°0°31°-1°30°-1°30°-2°29°-2°28°-2°28°
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Air Quality

20
Good

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

GoodHazardous

Daylight Hours

08:20

Sunrise

18:14

Sunset

9 hours 54 minutes of sunlight today

Moon

17:46

Moonrise

07:43

Moonset

Daily Forecast

Today

-2°29°
4°39°

Monday

-5°23°
1°35°

Tuesday

-6°21°
4°39°

Wednesday

1°33°
12°54°

Thursday

2°36°
9°49°

Friday

1°35°
8°46°

Saturday

2°35°
8°47°

Sunday

2°35°
8°46°

Monday

0°32°
2°35°

Tuesday

0°33°
6°42°

UV Index

No protection needed
0Low
LowExtreme

Humidity

88%Humid
LowHigh

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Weather in St. Mary's today, October 25, 2026

Cloud cover dominates in St. Mary's on October 25, 2026, keeping sunshine limited. Expect a grey, overcast feel rather than long bright spells. Expect a grey start, with morning cloud around 100% by 08:00. Outdoor plans early on should not rely on bright skies.Cloud cover dominates in St. Mary's on October 25, 2026, keeping sunshine limited. Expect a grey, overcast feel rather than long bright spells. Expect a grey start, with morning cloud around 100% by 08:00. Outdoor plans early on should not rely on bright skies.

The temperature range runs from about -2°C up to 4°C. Moisture in the air spans 49%-88%, with the highest values around 08:00. A lighter breeze peaks around 17:00 near 20 km/h.The temperature range runs from about 29°F up to 39°F. Moisture in the air spans 49%-88%, with the highest values around 08:00. A lighter breeze peaks around 17:00 near 12 mph.

The afternoon keeps an overcast feel, as cloud reaches about 100% around 12:00. Outdoor plans may still want a flexible backup. Expect visibility near 15.9 km, with poorer spells close to 14.5 km. Sunrise is at 08:20 and sunset at 18:14, giving 9 hours 54 minutes of sunlight today.The afternoon keeps an overcast feel, as cloud reaches about 100% around 12:00. Outdoor plans may still want a flexible backup. Expect visibility near 9.9 mi, with poorer spells close to 9 mi. Sunrise is at 08:20 and sunset at 18:14, giving 9 hours 54 minutes of sunlight today.

The practical takeaway for St. Mary's on October 25, 2026 is a cloudy day that stays usable, just not particularly bright, around 4°C.The practical takeaway for St. Mary's on October 25, 2026 is a cloudy day that stays usable, just not particularly bright, around 39°F.

Frequently asked questions about weather in St. Mary's

How warm does it get in St. Mary's?

The warmest month in St. Mary's is July, with average high temperatures of 27°C. The average temperature during this period is around 19°C.The warmest month in St. Mary's is July, with average high temperatures of 81°F. The average temperature during this period is around 66°F.

How cold does it get in St. Mary's?

The coldest month in St. Mary's is February, with average low temperatures of -10°C. The average temperature during this period is around -7°C.The coldest month in St. Mary's is February, with average low temperatures of 13°F. The average temperature during this period is around 20°F.

What is the wettest time of year in St. Mary's?

The wettest month in St. Mary's is May, with an average of 70 mm of precipitation.The wettest month in St. Mary's is May, with an average of 2.7 in of precipitation.

What is the driest time of year in St. Mary's?

The driest month in St. Mary's is January, with an average of 19 mm of precipitation.The driest month in St. Mary's is January, with an average of 0.8 in of precipitation.

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