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Weather in Red Deer for September 2026

Your guide to Red Deer weather in September - trends and predictions

    Temperatures

  • Until now, September 2026 in Red Deer is cooler than usual, with temperatures averaging 17.8 °C, this is 4.7 °C below the typical seasonal average.

  • The forecast for the next days in Red Deer predicts a temperature of 14.8 °C, which is cooler than the historical average.

  • In general, the average temperature in Red Deer at the beginning of September is 22.1 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 16.3 °C by the end of September.

    • Rain 🌧️

  • The climate of Red Deer in September is notably wet, with an average of 12 rainy days, and a total of 41 mm of precipitation.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
18
Dry days
Average rainy days
12
Rainy days
Average snowy days
0
Snow days
Average temperatures
21°/7°
Temperatures
Average wind speed
20 km/h
Avg max wind
Average humidity
61 %
Avg humidity

Red Deer Weather September

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

Temperatures trend during September in Red Deer

See the weather trend as well as the moving average line

September weather in Red Deer day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 25° /10° 1.8 mm 5
2 Sept. Partly cloudy
Partly cloudy
 25° /11° 0.6 mm 5
3 Sept. Overcast
Overcast
 22° /10° 1.5 mm 5
4 Sept. Overcast
Overcast
 16° /7° 0.1 mm 4
5 Sept. Sunny
Sunny
 20° /5° 0.4 mm 4
6 Sept. Fog
Fog
 23° /7° 1.1 mm 5
7 Sept. Light rain shower
Light rain shower
 24° /8° 3.3 mm 5
8 Sept. Sunny
Sunny
 24° /10° 0 mm 5
9 Sept. Sunny
Sunny
 23° /8° 0 mm 5
10 Sept. Sunny
Sunny
 20° /8° 3 mm 4
11 Sept. Patchy rain possible
Patchy rain possible
 10° /5° 2.6 mm 1.9
12 Sept. Patchy rain possible
Patchy rain possible
 10° /2° 0.3 mm 3.1
13 Sept. Sunny
Sunny
 14° /3° 0 mm 4.3
14 Sept. Overcast
Overcast
 13° /4° 0.4 mm 1.3
15 Sept. Overcast
Overcast
 11° /3° 0 mm 4
16 Sept. Sunny
Sunny
 20° /2° 0 mm 5
17 Sept. Sunny
Sunny
 22° /7° 0 mm 6
18 Sept. Sunny
Sunny
 21° /8° 0 mm 6
19 Sept. Sunny
Sunny
 23° /10° 0 mm 6
20 Sept. Overcast
Overcast
 27° /11° 0 mm 7
21 Sept. Partly cloudy
Partly cloudy
 14° /5° 3.6 mm 4
22 Sept. Overcast
Overcast
 7° /2° 0.1 mm 2
23 Sept. Sunny
Sunny
 6° /-2° 0 mm 3
24 Sept. Sunny
Sunny
 9° /-3° 0 mm 3
25 Sept. Cloudy
Cloudy
 23° /7° 0 mm 5
26 Sept. Partly cloudy
Partly cloudy
 19° /6° 0 mm 5
27 Sept. Thundery outbreaks possible
Thundery outbreaks possible
 18° /2° 1 mm 5
28 Sept. Overcast
Overcast
 15° /2° 3.9 mm 4
29 Sept. Moderate or heavy rain with thunder
Moderate or heavy rain with thunder
 16° /5° 6.2 mm 3
30 Sept. Light rain shower
Light rain shower
 14° /5° 1.2 mm 4
Next
Important Notice
Our weather forecast for Red Deer 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 Red Deer forecast closer to your planned date for the most up-to-date weather information.
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Red Deer in September - FAQ

What are the expected maximum and minimum temperatures in Red Deer during September?
Enjoy moderate daytime temperatures of up to 21° and cooler nights around 7°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Red Deer during September?
In September, Red Deer can expect light to moderate rainfall, totaling 41 mm across approximately 12 days. Occasional showers are possible, and planning ahead for them could be helpful.

What are the typical wind conditions in Red Deer during September?
The average wind speed in Red Deer during September is 20 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Red Deer

Explore the daily rainfall trends and prepare for Red Deers September weather 💧
Typically, Red Deer has 12 rainy days in September with a total of 41 mm of rainfall.

UV exposure in Red Deer during September

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

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Location coordinates Where is Red Deer?

Get accurate weather forecasts for Red Deer, located at latitude 52.267 and longitude -113.802. Stay updated with localized weather information tailored for Red Deer.

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