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Jefferson County (Fairfield)
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United States weather

Weather in Jefferson County, Iowa for October 2025

Your guide to Jefferson County weather in October - trends and predictions

    Temperatures

  • Until now, October 2025 in Jefferson County is slightly cooler than the historical average by -1.1 °F.

  • Expect cooler weather in the next days in Jefferson County with the forecast suggesting a temperature of 21.1 °F, lower than the historical average.

  • In general, the average temperature in Jefferson County at the beginning of October is 25.6 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 21.4 °F by the end of October.

    • Rain 🌧️

  • Jefferson County experiences moderate rainfall in October, with an average of 6 rainy days and a total precipitation of 30.5 mm.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
25
Dry days
Average rainy days
6
Rainy days
Average snowy days
0
Snow days
Average temperatures
21°/9°
Temperatures
Average wind speed
23 km/h
Avg max wind
Average humidity
59 %
Avg humidity

Jefferson County Weather October

Move between months or click on a day
September
November
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Overcast
26°
2
Partly cloudy
29°
3
Overcast
28°
4
Patchy rain possible
26°
5
Partly cloudy
29°
6
Sunny
21°
7
Sunny
20°
8
Sunny
21°
9
Partly cloudy
22°
10
Sunny
22°
11
Overcast
24°
12
Cloudy
24°
13
Overcast
19°
14
Sunny
25°
15
Overcast
14°
16
Overcast
26°
17
Moderate rain
28°
18
Patchy rain possible
20°
19
Sunny
17°
20
Sunny
16°
21
Sunny
18°
22
Patchy rain possible
28°
23
Sunny
21°
24
Patchy rain possible
17°
25
Sunny
20°
26
Partly cloudy
22°
27
Patchy rain possible
24°
28
Overcast
20°
29
Overcast
24°
30
Thundery outbreaks possible
22°
31
Light rain
18°

Temperatures trend during October in Jefferson County

See the weather trend as well as the moving average line

October weather in Jefferson County day by day

Click on a date for more information
September November
Date Weather Temperatures Rain UV More
Oct. 1 Overcast
Overcast
 26° /14° 0 mm 6
Oct. 2 Partly cloudy
Partly cloudy
 29° /15° 0 mm 7
Oct. 3 Overcast
Overcast
 28° /12° 0 mm 7
Oct. 4 Patchy rain possible
Patchy rain possible
 26° /14° 2.7 mm 6
Oct. 5 Partly cloudy
Partly cloudy
 29° /15° 0 mm 8
Oct. 6 Sunny
Sunny
 21° /12° 0 mm 6
Oct. 7 Sunny
Sunny
 20° /8° 0 mm 5
Oct. 8 Sunny
Sunny
 21° /6° 0 mm 6
Oct. 9 Partly cloudy
Partly cloudy
 22° /6° 0 mm 6
Oct. 10 Sunny
Sunny
 22° /10° 0 mm 6
Oct. 11 Overcast
Overcast
 24° /8° 0 mm 6
Oct. 12 Cloudy
Cloudy
 24° /12° 0 mm 6
Oct. 13 Overcast
Overcast
 19° /12° 4.8 mm 5
Oct. 14 Sunny
Sunny
 25° /13° 0 mm 0.4
Oct. 15 Overcast
Overcast
 14° /12° 0 mm 0.9
Oct. 16 Overcast
Overcast
 26° /14° 0 mm 1
Oct. 17 Moderate rain
Moderate rain
 28° /17° 7.1 mm 0.9
Oct. 18 Patchy rain possible
Patchy rain possible
 20° /12° 0.9 mm 0
Oct. 19 Sunny
Sunny
 17° /8° 0 mm 4
Oct. 20 Sunny
Sunny
 16° /5° 0 mm 3
Oct. 21 Sunny
Sunny
 18° /5° 0 mm 4
Oct. 22 Patchy rain possible
Patchy rain possible
 28° /13° 0.6 mm 4
Oct. 23 Sunny
Sunny
 21° /11° 0 mm 5
Oct. 24 Patchy rain possible
Patchy rain possible
 17° /12° 1 mm 3
Oct. 25 Sunny
Sunny
 20° /11° 0 mm 4
Oct. 26 Partly cloudy
Partly cloudy
 22° /11° 0 mm 5
Oct. 27 Patchy rain possible
Patchy rain possible
 24° /16° 0.2 mm 4
Oct. 28 Overcast
Overcast
 20° /8° 0 mm 5
Oct. 29 Overcast
Overcast
 24° /19° 0 mm 5
Oct. 30 Thundery outbreaks possible
Thundery outbreaks possible
 22° /18° 3.2 mm 5
Oct. 31 Light rain
Light rain
 18° /7° 9.5 mm 4
Next
Important Notice
Our weather forecast for Jefferson County in October 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 Jefferson County forecast closer to your planned date for the most up-to-date weather information.
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Jefferson County in October - FAQ

What are the expected maximum and minimum temperatures in Jefferson County during October?
Enjoy moderate daytime temperatures of up to 21° and cooler nights around 9°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Jefferson County during October?
In October, Jefferson County can expect light to moderate rainfall, totaling 30.5 mm across approximately 6 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Jefferson County during October?
The average wind speed in Jefferson County during October is 23 km/h, suggesting breezy to windy conditions, depending on your activities.

October rainfall patterns in Jefferson County

Explore the daily rainfall trends and prepare for Jefferson Countys October weather 💧

UV exposure in Jefferson County during October

Stay informed about UV levels for safe outdoor activities throughout the month of October ☀️
Top locations in Jefferson County
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BeaumontBirminghamFairfieldLakewoodLouisvilleWatertown
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Location coordinates Where is Jefferson County?

Get accurate weather forecasts for Jefferson County, located at latitude 41.009 and longitude -91.963. Stay updated with localized weather information tailored for Jefferson County.

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