Forney weather in September

In September, Forney sees average daytime highs of 88°F and overnight lows near 69°F, with 2.5 in of rain across 6.2 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 10th-wettest month of the year here.

Highs ease over the month, from about 91°F in the first days to 85°F by the end. The sky is clear or mostly clear about 56% of the time in September, and the air most often feels muggy.

Daylight stretches from about 12 h 42 min at the start of September to 11 h 42 min by month's end. Set against the rest of the year, September is Forney's 1st-clearest and 11th-windiest month. For the whole year in context, see Forney's year-round climate.

Daytime high
88°
4th warmest
Overnight low
69°
9th coldest
Rainfall
2.5 in
6.2 wet days
Daylight
12 h 12 min
6:14 AM – 6:26 PM
Cloud cover
41%
1st clearest
Wind
7 mph
11th windiest
Solar energy
5.14 kWh/m²
Travel score
5.1
out of 10

Forney is city in Kaufman County, Texas, United States.

Density
496/km²
people per km²
Founded
1871

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 91°F in the first days to 85°F by the end.

A typical September day in Forney reaches about 88°F in the afternoon and slips back to 69°F overnight — a 19°F spread between the day's warmth and the night's chill. On most days the high lands between 79°F and 96°F. Set against its neighbours, September runs about 6°F cooler than August and about 10°F warmer than October.

60°80°100°151015202530
Avg high (°F)Avg low (°F)
19273
29273
39173
49173
59172
69072
79072
89071
99071
108971
118971
128970
138970
148870
158869
168869
178769
188768
198768
208768
218767
228667
238666
248666
258666
268565
278565
288564
298464
308464

How September really feels in Forney

Once humidity and wind are folded in, September averages 13 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F
13
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

The story in September is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Forney weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan56° / 38°2.97.310.14.2
Feb60° / 42°3.27.810.85.2
Mar68° / 49°4.19.611.86.4
Apr75° / 56°4.49.112.87.0
May82° / 65°5.110.913.75.9
Jun90° / 73°3.38.814.14.1
Jul94° / 76°1.76.413.93.1
Aug94° / 76°2.15.513.23.1
Sep88° / 69°2.56.212.25.1
Oct78° / 58°4.07.811.27.3
Nov66° / 47°3.57.510.36.7
Dec58° / 40°3.87.59.94.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 56% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 14% of September, with mostly cloudy or overcast conditions the remaining 30%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17228
27228
37030
47030
57030
66931
76931
86832
96733
106733
116634
126634
136634
146634
156634
166634
176634
186733
196733
206931
217030
227228
237228
247426
257426
267525
277624
287624
297624
307525

Chance of precipitation in September

Any precipitation

Forney gets around 2.5 in of rain over 6.2 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 21% and peaks near 25% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202530
Rain chance (%)
123
224
324
424
524
625
725
825
924
1024
1124
1224
1323
1423
1523
1622
1722
1821
1920
2019
2119
2218
2317
2416
2516
2615
2715
2815
2916
3016

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the muggy band about 31% of days. Sticky, muggy-or-worse air turns up on roughly 53% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1482038300
2482137300
3582136290
4692136290
5792135280
6792035280
7892035280
8991935270
91091935270
101091835271
111191835261
1212101834251
1312101834251
1413111734241
1514111734241
1615111733231
1716121733221
1817121732211
1918131731201
2020141730191
2122141728181
2224151727170
2326151726160
2427161724150
2529161823140
2631171822130
2732171821120
2834171820110
2935171919100
3036171918100

Wind in September

Winds average 7 mph in September.

Across September, daily wind ranges from about 6 mph on the calmest days to 7 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (mph)Feels
16calm
26calm
36calm
46calm
56calm
66calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 42 min at the start of September to 11 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 60 minutes over September. Sunrise moves from 6:04 AM to 6:24 AM, and sunset from 6:47 PM to 6:07 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.76:046:47
212.76:056:46
312.66:066:44
412.66:066:43
512.66:076:41
612.56:086:40
712.56:086:39
812.56:096:37
912.46:106:36
1012.46:106:35
1112.46:116:33
1212.36:126:32
1312.36:126:30
1412.36:136:29
1512.26:146:28
1612.26:146:26
1712.26:156:25
1812.16:166:23
1912.16:166:22
2012.16:176:21
2112.06:186:19
2212.06:186:18
2312.06:196:16
2411.96:206:15
2511.96:206:14
2611.96:216:12
2711.86:226:11
2811.86:226:09
2911.76:236:08
3011.76:246:07

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.14 kWh/m².

For context, solar energy here swings from a low near 2.55 kWh/m² to a high of 6.76 kWh/m² in July across the year — September's 5.14 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.5Bright
45.5Bright
55.5Bright
65.4Bright
75.4Bright
85.3Bright
95.3Bright
105.3Bright
115.2Bright
125.2Bright
135.2Bright
145.1Bright
155.1Bright
165.1Bright
175.0Bright
185.0Bright
195.0Bright
205.0Bright
215.0Bright
225.0Bright
235.0Bright
245.0Bright
254.9Bright
264.9Bright
274.9Bright
284.9Bright
294.8Bright
304.8Bright
Planning a trip in September

Is September a good time to visit Forney?

Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

5.1
Sightseeing
7th-best month of the year
7.4
Beach & pool
1st-best month of the year

September is a reasonable time to visit Forney for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Forney in September

From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In September, Forney sees daytime highs around 88°F and nights near 69°F. Pack light clothes. Worth having: sun protection. About 6 days see rain.

light clothessun protection

UV index in Forney in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Forney peaks around June 23 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJun 23UV 10Dec 22UV 3
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar6High
Apr10Very high
May10Very high
Jun10Extreme
Jul10Extreme
Aug10Extreme
Sep8Very high
Oct6High
Nov5Moderate
Dec3Moderate

Air quality in Forney in September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.

Air quality in Forney is worst in July — around 19 µg/m³ PM2.5 (moderate), about 2.6× the cleanest month (October, 8 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1519 µg/m³Oct 248 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb8Good
Mar10Good
Apr11Good
May14Moderate
Jun16Moderate
Jul19Moderate
Aug15Moderate
Sep11Good
Oct8Good
Nov8Good
Dec8Good
Location & terrain

Where is Forney?

Forney sits at 32.7°N, 96.5°W, 472 ft above sea level, in United States. The nearest listed city is Mesquite, 7.5 mi away.

Topography around Forney

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Forney.

Within 2 miles, the terrain around Forney has only modest variations in elevation — a maximum elevation change of 138 ft around an average of 446 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 262 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 633 ft.

The land around Forney is covered by grassland (36%), artificial surfaces (29%) and trees (25%) within 2 miles, grassland (46%) and trees (22%) within 10 miles, and grassland (48%) and trees (27%) within 50 miles.

2 miles
138 ft
10 miles
262 ft
50 miles
633 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Mesquite 7.5 mi · Seagoville 8.7 mi · Balch Springs 8.7 mi · Terrell 11 mi · Rowlett 12 mi · Rockwall 12 mi · Garland 15 mi · Sachse 17 mi

United States travel facts

Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 100% of US
price level, 2025
GDP per capita
$90,027
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
5.8
per 100k, 2023
Road deaths
12.7
per 100k/yr, 2019
Income group
High
World Bank
Religion
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Forney (32.7482°, -96.4719°, elevation 472 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).