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Forrest County (Hattiesburg)
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United States weather

Weather in Forrest County, Mississippi for September 2026

Your guide to Forrest County weather in September - trends and predictions

    Temperatures

  • So far, September 2026 in Forrest County is slightly warmer than the historical average by 1.2 °F.

  • Expect cooler weather in the next days in Forrest County with the forecast suggesting a temperature of 31.3 °F, lower than the historical average.

  • In general, the average temperature in Forrest County at the beginning of September is 34.4 °F. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 31.6 °F by the end of September.

    • Rain 🌧️

  • With an average of 3 rainy days, Forrest County experiences minimal rainfall in September.

    • More

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Average dry days
27
Dry days
Average rainy days
3
Rainy days
Average snowy days
0
Snow days
Average temperatures
31°/21°
Temperatures
Average wind speed
10 km/h
Avg max wind
Average humidity
65 %
Avg humidity

Forrest County Weather September

Move between months or click on a day
August
October
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Partly cloudy
34°
2
Cloudy
35°
3
Heavy rain at times
34°
4
Thundery outbreaks possible
33°
5
Mist
34°
6
Fog
36°
7
Partly cloudy
35°
8
Partly cloudy
33°
9
Overcast
32°
10
Sunny
33°
11
Sunny
32°
12
Overcast
33°
13
Mist
33°
14
Fog
33°
15
Partly cloudy
35°
16
Partly cloudy
33°
17
Mist
34°
18
Overcast
33°
19
Overcast
35°
20
Partly cloudy
35°
21
Cloudy
33°
22
Cloudy
34°
23
Sunny
35°
24
Overcast
33°
25
Overcast
31°
26
Overcast
31°
27
Overcast
32°
28
Overcast
31°
29
Sunny
32°
30
Mist
31°

Temperatures trend during September in Forrest County

See the weather trend as well as the moving average line

September weather in Forrest County day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
Sept. 1 Partly cloudy
Partly cloudy
 34° /22° 0 mm 10
Sept. 2 Cloudy
Cloudy
 35° /22° 0.8 mm 11
Sept. 3 Heavy rain at times
Heavy rain at times
 34° /22° 4.5 mm 11
Sept. 4 Thundery outbreaks possible
Thundery outbreaks possible
 33° /22° 16.9 mm 7
Sept. 5 Mist
Mist
 34° /23° 0 mm 10
Sept. 6 Fog
Fog
 36° /22° 0 mm 11
Sept. 7 Partly cloudy
Partly cloudy
 35° /23° 0 mm 11
Sept. 8 Partly cloudy
Partly cloudy
 33° /20° 0.1 mm 11
Sept. 9 Overcast
Overcast
 32° /22° 0.1 mm 6
Sept. 10 Sunny
Sunny
 33° /22° 2.8 mm 8
Sept. 11 Sunny
Sunny
 32° /21° 10.4 mm 7
Sept. 12 Overcast
Overcast
 33° /21° 1.4 mm 10
Sept. 13 Mist
Mist
 33° /22° 2 mm 8
Sept. 14 Fog
Fog
 33° /22° 0.6 mm 9
Sept. 15 Partly cloudy
Partly cloudy
 35° /21° 0.1 mm 10
Sept. 16 Partly cloudy
Partly cloudy
 33° /22° 2.4 mm 10
Sept. 17 Mist
Mist
 34° /21° 0 mm 9
Sept. 18 Overcast
Overcast
 33° /20° 0 mm 9
Sept. 19 Overcast
Overcast
 35° /21° 0 mm 9
Sept. 20 Partly cloudy
Partly cloudy
 35° /22° 0.9 mm 9
Sept. 21 Cloudy
Cloudy
 33° /22° 6.4 mm 7
Sept. 22 Cloudy
Cloudy
 34° /21° 0 mm 9
Sept. 23 Sunny
Sunny
 35° /22° 0 mm 8.7
Sept. 24 Overcast
Overcast
 33° /22° 0 mm 8.2
Sept. 25 Overcast
Overcast
 31° /18° 0 mm 8
Sept. 26 Overcast
Overcast
 31° /20° 0 mm 6.8
Sept. 27 Overcast
Overcast
 32° /20° 0 mm 7
Sept. 28 Overcast
Overcast
 31° /20° 0 mm 8
Sept. 29 Sunny
Sunny
 32° /21° 5.3 mm 8
Sept. 30 Mist
Mist
 31° /23° 4.6 mm 8
Next
Important Notice
Our weather forecast for Forrest County 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 Forrest County forecast closer to your planned date for the most up-to-date weather information.
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Forrest County in September - FAQ

What are the expected maximum and minimum temperatures in Forrest County during September?
During September, expect a variety of temperatures with highs around 31° and lows near 21°, suitable for diverse activities and preferences.

How much rainfall should be expected in Forrest County during September?
In September, Forrest County can expect light to moderate rainfall, totaling 28.9 mm across approximately 3 days. Occasional showers are possible, and planning ahead for them could be helpful.

What are the typical wind conditions in Forrest County during September?
The average wind speed in Forrest County during September is 10 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Forrest County

Explore the daily rainfall trends and prepare for Forrest Countys September weather 💧
Typically, Forrest County has 3 rainy days in September with a total of 28.9 mm of rainfall.

UV exposure in Forrest County during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Hattiesburg
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Location coordinates Where is Forrest County?

Get accurate weather forecasts for Forrest County, located at latitude 31.327 and longitude -89.29. Stay updated with localized weather information tailored for Forrest County.

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