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United States weather

Weather in Fort Wayne, Indiana for September 2025

Your guide to Fort Wayne weather in September - trends and predictions

    Temperatures

  • Until now, September 2025 in Fort Wayne is cooler than usual, with temperatures averaging 22.7 °F, this is -3.6 °F below the typical seasonal average.

  • Expect cooler weather in the next days in Fort Wayne with the forecast suggesting a temperature of 25.2 °F, lower than the historical average.

  • In general, the average temperature in Fort Wayne at the beginning of September is 26.7 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 22.4 °F by the end of September.

    • Rain 🌧️

  • The climate of Fort Wayne in September is notably wet, with an average of 12 rainy days, and a total of 67.9 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
26°/13°
Temperatures
Average wind speed
17 km/h
Avg max wind
Average humidity
67 %
Avg humidity

Fort Wayne Weather September

Move between months or click on a day
August
October
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Sunny
28°
2
Sunny
28°
3
Mist
29°
4
Partly cloudy
28°
5
Thundery outbreaks possible
29°
6
Light rain shower
24°
7
Fog
21°
8
Mist
21°
9
Mist
26°
10
Mist
27°
11
Mist
29°
12
Fog
27°
13
Patchy rain possible
19°
14
Partly cloudy
28°
15
Sunny
30°
16
Mist
33°
17
Patchy rain possible
35°
18
Patchy rain possible
33°
19
Patchy rain possible
28°
20
Patchy rain possible
21°
21
Patchy rain possible
21°
22
Patchy rain possible
21°
23
Patchy rain possible
17°
24
Sunny
23°
25
Sunny
23°
26
Patchy rain possible
21°
27
Heavy rain
22°
28
Fog
22°
29
Patchy rain possible
22°
30
Mist
24°

Temperatures trend during September in Fort Wayne

See the weather trend as well as the moving average line

September weather in Fort Wayne day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
Sept. 1 Sunny
Sunny
 28° /10° 0 mm 7
Sept. 2 Sunny
Sunny
 28° /10° 0 mm 7
Sept. 3 Mist
Mist
 29° /13° 0 mm 7
Sept. 4 Partly cloudy
Partly cloudy
 28° /13° 3.5 mm 7
Sept. 5 Thundery outbreaks possible
Thundery outbreaks possible
 29° /14° 0 mm 7
Sept. 6 Light rain shower
Light rain shower
 24° /13° 4.4 mm 5
Sept. 7 Fog
Fog
 21° /9° 0.7 mm 5
Sept. 8 Mist
Mist
 21° /7° 0 mm 5
Sept. 9 Mist
Mist
 26° /9° 0 mm 6
Sept. 10 Mist
Mist
 27° /12° 0 mm 6
Sept. 11 Mist
Mist
 29° /14° 0.1 mm 7
Sept. 12 Fog
Fog
 27° /12° 2.4 mm 6
Sept. 13 Patchy rain possible
Patchy rain possible
 19° /12° 1.1 mm 1.2
Sept. 14 Partly cloudy
Partly cloudy
 28° /16° 0 mm 1.5
Sept. 15 Sunny
Sunny
 30° /13° 0 mm 1.5
Sept. 16 Mist
Mist
 33° /12° 0 mm 1.4
Sept. 17 Patchy rain possible
Patchy rain possible
 35° /16° 0.8 mm 0
Sept. 18 Patchy rain possible
Patchy rain possible
 33° /18° 2.2 mm 5
Sept. 19 Patchy rain possible
Patchy rain possible
 28° /17° 0.2 mm 5
Sept. 20 Patchy rain possible
Patchy rain possible
 21° /14° 3.8 mm 4
Sept. 21 Patchy rain possible
Patchy rain possible
 21° /12° 0.1 mm 4
Sept. 22 Patchy rain possible
Patchy rain possible
 21° /11° 1.2 mm 4
Sept. 23 Patchy rain possible
Patchy rain possible
 17° /15° 2 mm 4
Sept. 24 Sunny
Sunny
 23° /12° 0 mm 5
Sept. 25 Sunny
Sunny
 23° /10° 0 mm 5
Sept. 26 Patchy rain possible
Patchy rain possible
 21° /11° 0.1 mm 4
Sept. 27 Heavy rain
Heavy rain
 22° /14° 13.9 mm 5
Sept. 28 Fog
Fog
 22° /15° 4.4 mm 5
Sept. 29 Patchy rain possible
Patchy rain possible
 22° /16° 18.3 mm 5
Sept. 30 Mist
Mist
 24° /15° 0 mm 6
Next
Important Notice
Our weather forecast for Fort Wayne 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 Fort Wayne forecast closer to your planned date for the most up-to-date weather information.
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Fort Wayne in September - FAQ

What are the expected maximum and minimum temperatures in Fort Wayne during September?
Enjoy moderate daytime temperatures of up to 26° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Fort Wayne during September?
Moderate rainfall is anticipated in Fort Wayne during September, with a total of 67.9 mm spread over approximately 12 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Fort Wayne during September?
The average wind speed in Fort Wayne during September is 17 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Fort Wayne

Explore the daily rainfall trends and prepare for Fort Waynes September weather 💧

UV exposure in Fort Wayne during September

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

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Location coordinates Where is Fort Wayne?

Get accurate weather forecasts for Fort Wayne, located at latitude 41.131 and longitude -85.129. Stay updated with localized weather information tailored for Fort Wayne.

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