Fort Wayne weather in September: Fort Wayne, Indiana: normal highs, lows, rain and records for September
Fort Wayne in September has a normal high of 76°F and a normal low of 53°F, a daily mean of 65°F, falling from 80°F on the 1st to 71°F by the 30th. Measurable precipitation falls on 9 days in a normal September, 3.04 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 24°C and low of 12°C, 77 mm of precipitation in September.
- NOAA stationFort Wayne International Airport
- Station IDUSW00014827
- Location40.97°N 85.21°W
- Elevation791 ft (241 m)
- From the center9 miles
- Population273,203
- Jan 33° 18°
- Feb 37° 21°
- Mar 48° 29°
- Apr 61° 39°
- May 72° 50°
- Jun 81° 60°
- Jul 84° 64°
- Aug 82° 61°
- Sep 76° 53°
- Oct 64° 43°
- Nov 49° 33°
- Dec 38° 24°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Fort Wayne in September?
The normal high is 76°F and the normal low 53°F, for a daily mean of 64.8°F. September is 6.8°F cooler than August and 11.6°F warmer than October. September is the 4th warmest month of the year in Fort Wayne and the 6th wettest. Across the month the normal high falls 9°F, from 80°F on September 1 to 71°F on September 30. From one year to the next September's mean temperature typically moves about 2.5°F either way (NOAA's standard deviation), so roughly two Septembers in three average between 62°F and 67°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 31%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| September 1 | 80°F | 58°F | 29% | 18% |
| September 8 | 79°F | 56°F | 30% | 18% |
| September 15 | 77°F | 54°F | 30% | 18% |
| September 22 | 74°F | 51°F | 30% | 19% |
| September 30 | 71°F | 48°F | 31% | 19% |
Every day of September: normal high, low and chance of precipitation (warmest afternoon September 1, coldest night September 30)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| September 1 | 80°F | 58°F | 29% | 18% | 13 h 10 min |
| September 2 | 80°F | 58°F | 29% | 18% | 13 h 10 min |
| September 3 | 80°F | 58°F | 29% | 18% | 13 h |
| September 4 | 80°F | 58°F | 29% | 18% | 13 h |
| September 5 | 79°F | 57°F | 30% | 18% | 13 h |
| September 6 | 79°F | 57°F | 30% | 18% | 13 h |
| September 7 | 79°F | 57°F | 30% | 18% | 12 h 50 min |
| September 8 | 79°F | 56°F | 30% | 18% | 12 h 50 min |
| September 9 | 78°F | 56°F | 30% | 18% | 12 h 50 min |
| September 10 | 78°F | 56°F | 30% | 18% | 12 h 50 min |
| September 11 | 78°F | 55°F | 30% | 18% | 12 h 40 min |
| September 12 | 78°F | 55°F | 30% | 18% | 12 h 40 min |
| September 13 | 77°F | 54°F | 30% | 18% | 12 h 40 min |
| September 14 | 77°F | 54°F | 30% | 18% | 12 h 30 min |
| September 15 | 77°F | 54°F | 30% | 18% | 12 h 30 min |
| September 16 | 76°F | 53°F | 30% | 18% | 12 h 30 min |
| September 17 | 76°F | 53°F | 30% | 18% | 12 h 30 min |
| September 18 | 76°F | 53°F | 30% | 18% | 12 h 20 min |
| September 19 | 75°F | 52°F | 30% | 18% | 12 h 20 min |
| September 20 | 75°F | 52°F | 30% | 18% | 12 h 20 min |
| September 21 | 75°F | 51°F | 30% | 19% | 12 h 20 min |
| September 22 | 74°F | 51°F | 30% | 19% | 12 h 10 min |
| September 23 | 74°F | 51°F | 30% | 19% | 12 h 10 min |
| September 24 | 73°F | 50°F | 30% | 19% | 12 h 10 min |
| September 25 | 73°F | 50°F | 31% | 19% | 12 h 10 min |
| September 26 | 73°F | 50°F | 31% | 19% | 12 h |
| September 27 | 72°F | 49°F | 31% | 19% | 12 h |
| September 28 | 72°F | 49°F | 31% | 19% | 12 h |
| September 29 | 71°F | 48°F | 31% | 19% | 11 h 50 min |
| September 30 | 71°F | 48°F | 31% | 19% | 11 h 50 min |
- Normal high
- 76°FSeptember average
- Normal low
- 53°FSeptember average
- Precipitation
- 3.04 inmonth total
- Days with precipitation
- 90.01 inch or more
- Days at 90°F or more
- 2
- Daylight
- 13 h 10 min to 11 h 50 minSeptember 1 to September 30
- Days at 70°F or more
- 24
- Days at 80°F or more
- 11
- Sunshine
- 79%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00014827; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Fort Wayne in September?
On a given September day the chance of 0.01 inch or more is 30% on average, highest around September 29 (31%). In all, 3.04 in falls on 9 days of a normal September, 1 of them with an inch or more.
In a normal September in Fort Wayne, 2 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00014827.
How humid and windy is Fort Wayne in September?
At 3 p.m. the normal temperature is 69°F with 49% relative humidity and a dew point of 49°F; at 6 a.m. it is 51°F with 88% humidity. The wind averages 7.8 mph, most often from the west in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 51°F | 48°F | 88% | 5.8 mph | 51% |
| 9 a.m. | 57°F | 50°F | 77% | 8.4 mph | 44% |
| noon | 66°F | 50°F | 56% | 10.4 mph | 38% |
| 3 p.m. | 69°F | 49°F | 49% | 10.7 mph | 39% |
| 6 p.m. | 65°F | 49°F | 57% | 8.1 mph | 50% |
| 9 p.m. | 57°F | 49°F | 75% | 6.6 mph | 53% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00014827. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for September in Fort Wayne?
The warmest September temperature on Fort Wayne's official record (since 1897) is 100°F, on September 2, 1953; the coldest is 29°F, on September 29, 1951. The wettest September brought 9.87 in (1902).
The September mean against the 1991-2020 normal of 64.8°F: 2021 67.5°F (+2.7), 2022 64.8°F (at normal), 2023 66.1°F (+1.3), 2024 68.6°F (+3.8), 2025 66.6°F (+1.8), 2026 67.9°F (+3.1). 5 of 6 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 67.5°F | +2.7°F | 3.78 in |
| 2022 | 64.8°F | at normal | 1.96 in |
| 2023 | 66.1°F | +1.3°F | 1.63 in |
| 2024 | 68.6°F | +3.8°F | 1.42 in |
| 2025 | 66.6°F | +1.8°F | 0.98 in |
| 2026 | 67.9°F | +3.1°F | 4.99 in |
Source: records: ACIS, NWS threaded record FWAthr; recent months: ACIS, station USW00014827. Records and recent months use complete months only.
How does September in Fort Wayne compare across Indiana?
Across the 99 places PlainClimate covers in Indiana, September normal highs run from 74°F in Angola to 82°F in English; Fort Wayne's is 76°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.