Lethbridge 7-day weather forecast

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September 8, 2025
ESOlex // Shutterstock

Lethbridge 7-day weather forecast

Stacker created the forecast for Lethbridge, Alberta using data from OpenWeather. This week's high is 30 °C on Tuesday, while the low is 10 °C on Monday. There are expected to be 0 sunny days and rain on 6 days this week.

Environment Canada, Alberta Environment and Protected Areas, Alberta Health, Alberta Health Services has issued an air quality until Monday at 03:52 PM.

Monday, September 8

- High of 25 °C, low of 10 °C (35% humidity)
- Partly cloudy with a 100% chance of rain (1 mm of rain)
- Moderate risk of harm from sun exposure (2 UV index)
- Light breeze (21 km/h wind)
- Sunrise at 6:57 AM, sunset at 8:00 PM
1 / 6
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Tuesday, September 9

- High of 30 °C, low of 14 °C (23% humidity)
- Mostly cloudy with a 0% chance of snow
- Moderate risk of harm from sun exposure (5 UV index)
- Gentle breeze (27 km/h wind)
- Sunrise at 6:59 AM, sunset at 7:58 PM
2 / 6
Deborah Kolb // Shutterstock

Wednesday, September 10

- High of 27 °C, low of 15 °C (30% humidity)
- Overcast with a 57% chance of rain (1 mm of rain)
- Moderate risk of harm from sun exposure (4 UV index)
- Light breeze (17 km/h wind)
- Sunrise at 7:00 AM, sunset at 7:56 PM
3 / 6
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Thursday, September 11

- High of 21 °C, low of 14 °C (70% humidity)
- Overcast with a 100% chance of rain (9 mm of rain)
- Moderate risk of harm from sun exposure (5 UV index)
- Light breeze (14 km/h wind)
- Sunrise at 7:02 AM, sunset at 7:53 PM
4 / 6
Stepan Bessmelnitsin // Shutterstock

Friday, September 12

- High of 25 °C, low of 14 °C (56% humidity)
- Partly cloudy with a 100% chance of rain (3 mm of rain)
- Moderate risk of harm from sun exposure (5 UV index)
- Light breeze (18 km/h wind)
- Sunrise at 7:03 AM, sunset at 7:51 PM
5 / 6
STILLFX // Shutterstock

Saturday, September 13

- High of 21 °C, low of 14 °C (48% humidity)
- Overcast with a 100% chance of rain (5 mm of rain)
- Moderate risk of harm from sun exposure (5 UV index)
- Light breeze (15 km/h wind)
- Sunrise at 7:05 AM, sunset at 7:49 PM
6 / 6
Leonid Ikan // Shutterstock

Sunday, September 14

- High of 23 °C, low of 16 °C (66% humidity)
- Overcast with a 100% chance of rain (21 mm of rain)
- Moderate risk of harm from sun exposure (5 UV index)
- Light breeze (15 km/h wind)
- Sunrise at 7:06 AM, sunset at 7:47 PM
- Last quarter moon

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