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Canada weather

Weather in Lethbridge for September 2026

Your guide to Lethbridge weather in September - trends and predictions

    Temperatures

  • Until now, September 2026 in Lethbridge has been significantly cooler than historical averages by 5.2 °C, with average temperature of 20.7 °C.

  • The forecast for the next days in Lethbridge predicts a temperature of 16.4 °C, which is cooler than the historical average.

  • In general, the average temperature in Lethbridge at the beginning of September is 25.7 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 19.1 °C by the end of September.

    • Rain 🌧️

  • Lethbridge experiences moderate rainfall in September, with an average of 8 rainy days and a total precipitation of 54 mm.

    • More

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Average dry days
22
Dry days
Average rainy days
8
Rainy days
Average snowy days
0
Snow days
Average temperatures
24°/9°
Temperatures
Average wind speed
23 km/h
Avg max wind
Average humidity
52 %
Avg humidity

Lethbridge Weather September

Move between months or click on a day
August
October
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Overcast
30°
2
Sunny
30°
3
Overcast
27°
4
Overcast
20°
5
Cloudy
22°
6
Sunny
25°
7
Sunny
26°
8
Thundery outbreaks possible
26°
9
Overcast
27°
10
Fog
24°
11
Overcast
14°
12
Overcast
12°
13
Overcast
10°
14
Overcast
16°
15
Overcast
12°
16
Sunny
19°
17
Sunny
23°
18
Sunny
25°
19
Sunny
26°
20
Sunny
27°
21
Patchy rain possible
20°
22
Overcast
12°
23
Sunny
7°
24
Sunny
6°
25
Overcast
27°
26
Sunny
21°
27
Thundery outbreaks possible
21°
28
Sunny
20°
29
Patchy rain possible
22°
30
Overcast
17°

Temperatures trend during September in Lethbridge

See the weather trend as well as the moving average line

September weather in Lethbridge day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Overcast
Overcast
 30° /10° 0 mm 6
2 Sept. Sunny
Sunny
 30° /13° 6.1 mm 6
3 Sept. Overcast
Overcast
 27° /13° 0.1 mm 6
4 Sept. Overcast
Overcast
 20° /10° 0.5 mm 4
5 Sept. Cloudy
Cloudy
 22° /8° 6 mm 5
6 Sept. Sunny
Sunny
 25° /8° 22.5 mm 6
7 Sept. Sunny
Sunny
 26° /11° 77.8 mm 6
8 Sept. Thundery outbreaks possible
Thundery outbreaks possible
 26° /12° 24.5 mm 5
9 Sept. Overcast
Overcast
 27° /11° 0 mm 6
10 Sept. Fog
Fog
 24° /10° 0.2 mm 5
11 Sept. Overcast
Overcast
 14° /8° 0.4 mm 1.7
12 Sept. Overcast
Overcast
 12° /7° 0 mm 0.6
13 Sept. Overcast
Overcast
 10° /6° 5.3 mm 0.7
14 Sept. Overcast
Overcast
 16° /4° 1.6 mm 2.9
15 Sept. Overcast
Overcast
 12° /5° 0.1 mm 3
16 Sept. Sunny
Sunny
 19° /5° 0 mm 5
17 Sept. Sunny
Sunny
 23° /8° 0 mm 6
18 Sept. Sunny
Sunny
 25° /11° 0 mm 6
19 Sept. Sunny
Sunny
 26° /13° 0 mm 7
20 Sept. Sunny
Sunny
 27° /15° 0 mm 7
21 Sept. Patchy rain possible
Patchy rain possible
 20° /8° 7.6 mm 4
22 Sept. Overcast
Overcast
 12° /6° 1.1 mm 3
23 Sept. Sunny
Sunny
 7° /1° 0 mm 3
24 Sept. Sunny
Sunny
 6° /-2° 0 mm 3
25 Sept. Overcast
Overcast
 27° /8° 0 mm 7
26 Sept. Sunny
Sunny
 21° /11° 0 mm 6
27 Sept. Thundery outbreaks possible
Thundery outbreaks possible
 21° /8° 0 mm 5
28 Sept. Sunny
Sunny
 20° /6° 0 mm 5
29 Sept. Patchy rain possible
Patchy rain possible
 22° /4° 1.1 mm 5
30 Sept. Overcast
Overcast
 17° /7° 8.4 mm 4
Next
Important Notice
Our weather forecast for Lethbridge in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Lethbridge forecast closer to your planned date for the most up-to-date weather information.
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Lethbridge in September - FAQ

What are the expected maximum and minimum temperatures in Lethbridge during September?
Enjoy moderate daytime temperatures of up to 24° and cooler nights around 9°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Lethbridge during September?
Moderate rainfall is anticipated in Lethbridge during September, with a total of 54 mm spread over approximately 8 days. Considering plans for rainy days is advisable.

What are the typical wind conditions in Lethbridge during September?
The average wind speed in Lethbridge during September is 23 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Lethbridge

Explore the daily rainfall trends and prepare for Lethbridges September weather 💧
Typically, Lethbridge has 8 rainy days in September with a total of 54 mm of rainfall.

UV exposure in Lethbridge during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️

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Get accurate weather forecasts for Lethbridge, located at latitude 49.7 and longitude -112.819. Stay updated with localized weather information tailored for Lethbridge.

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