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Weather in Polk County for September 2025

Your guide to Polk County weather in September - trends and predictions
  • In general, the average temperature in Polk County at the beginning of September is 31.4 °F. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 28.4 °F by the end of September.

  • Polk County sees moderate rainfall in September, averaging 10 rainy days.

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Average dry days
20
Dry days
Average rainy days
10
Rainy days
Average snowy days
0
Snow days
Average temperatures
31°/13°
Temperatures
Average wind speed
21 km/h
Avg max wind
Average humidity
57 %
Avg humidity

Polk County in September average weather

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Temperatures trend during September in Polk County

See the weather trend as well as the moving average line

September weather day by day

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Date Weather Temperatures Rain UV More
Sept. 1 Sunny
Sunny
31° /12° 0 mm 8
Sept. 2 Sunny
Sunny
33° /12° 0 mm 9
Sept. 3 Sunny
Sunny
34° /13° 0 mm 9
Sept. 4 Mist
Mist
34° /15° 0 mm 8
Sept. 5 Thundery outbreaks possible
Thundery outbreaks possible
35° /20° 0.8 mm 8
Sept. 6 Overcast
Overcast
27° /13° 0 mm 6
Sept. 7 Mist
Mist
26° /7° 0 mm 7
Sept. 8 Cloudy
Cloudy
30° /10° 0 mm 7
Sept. 9 Partly cloudy
Partly cloudy
33° /11° 0 mm 8
Sept. 10 Overcast
Overcast
32° /16° 0.2 mm 8
Sept. 11 Heavy rain
Heavy rain
30° /15° 13.5 mm 7
Sept. 12 Mist
Mist
30° /13° 0 mm 7
Sept. 13 Partly cloudy
Partly cloudy
28° /14° 0 mm 7
Sept. 14 Partly cloudy
Partly cloudy
30° /12° 0 mm 8
Sept. 15 Overcast
Overcast
30° /16° 0 mm 7
Sept. 16 Fog
Fog
29° /15° 0.2 mm 7
Sept. 17 Cloudy
Cloudy
27° /12° 0 mm 6
Sept. 18 Mist
Mist
30° /12° 0 mm 7
Sept. 19 Thundery outbreaks possible
Thundery outbreaks possible
30° /17° 2.9 mm 7
Sept. 20 Thundery outbreaks possible
Thundery outbreaks possible
30° /16° 3 mm 7
Sept. 21 Partly cloudy
Partly cloudy
29° /14° 27.5 mm 7
Sept. 22 Light rain shower
Light rain shower
24° /13° 16.6 mm 5
Sept. 23 Patchy rain possible
Patchy rain possible
26° /11° 4.2 mm 6
Sept. 24 Fog
Fog
25° /11° 0.4 mm 6
Sept. 25 Fog
Fog
28° /11° 0 mm 6
Sept. 26 Cloudy
Cloudy
27° /13° 0 mm 7
Sept. 27 Fog
Fog
26° /12° 0 mm 6
Sept. 28 Mist
Mist
29° /13° 0 mm 6
Sept. 29 Partly cloudy
Partly cloudy
32° /14° 0 mm 8
Sept. 30 Patchy light rain with thunder
Patchy light rain with thunder
32° /15° 2 mm 7
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Important Notice
Our weather forecast for Polk 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 Polk County forecast closer to your planned date for the most up-to-date weather information.

Polk County in September - FAQ

What are the expected maximum and minimum temperatures in Polk County during September?
Expect warm days with temperatures around 31°, cooling to mild conditions of 13° after sunset. Perfect for those who enjoy warm weather.
How much rainfall should be expected in Polk County during September?
Moderate rainfall is anticipated in Polk County during September, with a total of 58.7 mm spread over approximately 10 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Polk County during September?
The average wind speed in Polk County during September is 21 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Polk County

Explore the daily rainfall trends and prepare for Polk Countys September weather 💧

UV exposure in Polk County during September

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

Get accurate weather forecasts for Polk County, located at latitude 41.601 and longitude -93.609. Stay updated with localized weather information tailored for Polk County.

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