Waterloo (IA)
October
Weather in Waterloo, Iowa for October 2025
Your guide to Waterloo weather in October - trends and predictions
In general, the average temperature in Waterloo at the beginning of October is 22.4 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 17.3 °F by the end of October.
Waterloo experiences moderate rainfall in October, with an average of 6 rainy days and a total precipitation of 148 mm.
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Temperatures
Rain 🌧️
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25
Dry days
6
Rainy days
0
Snow days
20°/8°
Temperatures
25 km/h
Avg max wind
57 %
Avg humidity
Waterloo Weather October
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Temperatures trend during October in Waterloo
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October weather in Waterloo day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Oct. 1 |  Overcast | 20° /10° | 0 mm | 5 | |
| Oct. 2 |  Sunny | 23° /6° | 0 mm | 6 | |
| Oct. 3 |  Partly cloudy | 24° /8° | 1.9 mm | 6 | |
| Oct. 4 | Sunny | 22° /9° | 0 mm | 6 | |
| Oct. 5 |  Cloudy | 30° /13° | 0 mm | 7 | |
| Oct. 6 | Sunny | 19° /10° | 0 mm | 5 | |
| Oct. 7 | Sunny | 19° /3° | 0 mm | 5 | |
| Oct. 8 | Sunny | 24° /5° | 0 mm | 6 | |
| Oct. 9 | Sunny | 25° /9° | 0 mm | 7 | |
| Oct. 10 | Overcast | 26° /8° | 0 mm | 6 | |
| Oct. 11 | Overcast | 27° /12° | 0 mm | 6 | |
| Oct. 12 |  Patchy rain possible | 19° /11° | 0.4 mm | 4 | |
| Oct. 13 | Cloudy | 16° /9° | 0 mm | 4 | |
| Oct. 14 | Overcast | 9° /4° | 0 mm | 2 | |
| Oct. 15 | Sunny | 13° /0° | 0 mm | 4 | |
| Oct. 16 | Sunny | 15° /-1° | 0 mm | 5 | |
| Oct. 17 | Sunny | 19° /2° | 0 mm | 5 | |
| Oct. 18 | Sunny | 21° /6° | 0 mm | 6 | |
| Oct. 19 | Cloudy | 23° /9° | 0 mm | 5 | |
| Oct. 20 | Sunny | 27° /12° | 0 mm | 7 | |
| Oct. 21 | Sunny | 27° /10° | 0 mm | 7 | |
| Oct. 22 | Patchy rain possible | 23° /13° | 0.1 mm | 5 | |
| Oct. 23 | Sunny | 16° /7° | 0 mm | 5 | |
| Oct. 24 | Overcast | 16° /2° | 12.4 mm | 4 | |
| Oct. 25 | Overcast | 16° /7° | 35.3 mm | 4 | |
| Oct. 26 | Partly cloudy | 14° /3° | 0 mm | 4 | |
| Oct. 27 | Partly cloudy | 15° /5° | 0 mm | 5 | |
| Oct. 28 | Overcast | 19° /8° | 0 mm | 4 | |
| Oct. 29 | Overcast | 24° /17° | 0 mm | 5 | |
| Oct. 30 | Light rain shower | 21° /15° | 33.2 mm | 5 | |
| Oct. 31 | Overcast | 12° /5° | 64.8 mm | 3 | |
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Important Notice
Our weather forecast for Waterloo 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 Waterloo forecast closer to your planned date for the most up-to-date weather information.
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Waterloo in October - FAQ
What are the expected maximum and minimum temperatures in Waterloo during October?
Enjoy moderate daytime temperatures of up to 20° and cooler nights around 8°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Waterloo during October?
Significant rainfall exceeding 148 mm is expected in Waterloo during October, occurring over more than 6 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Waterloo during October?
The average wind speed in Waterloo during October is 25 km/h, suggesting breezy to windy conditions, depending on your activities.
October rainfall patterns in Waterloo
Explore the daily rainfall trends and prepare for Waterloos October weather 💧
UV exposure in Waterloo during October
Stay informed about UV levels for safe outdoor activities throughout the month of October ☀️
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