Weather in Waterloo, Iowa for April 2026
Until now, April 2026 in Waterloo has been nearly identical to the historical average, with a temperature of 14.2 °F (showing only a slight deviation of 0.4 °F).
Expect cooler weather in the next days in Waterloo with the forecast suggesting a temperature of 16.9 °F, lower than the historical average.
In general, the average temperature in Waterloo at the beginning of April is 9.9 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 16.6 °F by the end of April.
The climate of Waterloo in April is notably wet, with an average of 13 rainy days, and a total of 196 mm of precipitation.
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Waterloo Weather April
Temperatures trend during April in Waterloo
April weather in Waterloo day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Apr. 1 | Patchy rain possible | 8° /0° | 46.7 mm | 2 | |
| Apr. 2 | Moderate or heavy rain shower | 17° /3° | 69.7 mm | 3 | |
| Apr. 3 | Overcast | 10° /0° | 1.2 mm | 3 | |
| Apr. 4 | Overcast | 10° /1° | 4.2 mm | 2 | |
| Apr. 5 | Overcast | 9° /1° | 0.2 mm | 4 | |
| Apr. 6 | Sunny | 10° /-1° | 0 mm | 5 | |
| Apr. 7 | Sunny | 5° /-1° | 2.2 mm | 2 | |
| Apr. 8 | Cloudy | 13° /-1° | 7.9 mm | 3 | |
| Apr. 9 | Heavy rain at times | 12° /2° | 3 mm | 5 | |
| Apr. 10 | Moderate or heavy rain shower | 13° /2° | 16.7 mm | 5 | |
| Apr. 11 | Patchy rain possible | 11° /4° | 19.9 mm | 3 | |
| Apr. 12 | Partly cloudy | 20° /5° | 0 mm | 4 | |
| Apr. 13 | Patchy rain possible | 20° /12° | 0.1 mm | 3 | |
| Apr. 14 | Patchy rain possible | 20° /12° | 0.1 mm | 2 | |
| Apr. 15 | Partly cloudy | 19° /7° | 33.9 mm | 3 | |
| Apr. 16 | Cloudy | 21° /6° | 0 mm | 5 | |
| Apr. 17 | Patchy rain possible | 22° /7° | 15.9 mm | 5 | |
| Apr. 18 | Moderate or heavy rain shower | 13° /4° | 18.5 mm | 6 | |
| Apr. 19 | Overcast | 12° /1° | 0 mm | 5 | |
| Apr. 20 | Moderate or heavy rain shower | 11° /1° | 24.1 mm | 5 | |
| Apr. 21 | Patchy rain possible | 20° /8° | 1.7 mm | 6 | |
| Apr. 22 | Sunny | 30° /10° | 0 mm | 6.8 | |
| Apr. 23 | Moderate rain | 21° /15° | 11.4 mm | 3.6 | |
| Apr. 24 | Moderate rain | 16° /9° | 5.6 mm | 6.7 | |
| Apr. 25 | Partly cloudy | 17° /7° | 0 mm | 5.2 | |
| Apr. 26 | Moderate rain | 14° /11° | 13.1 mm | 2 | |
| Apr. 27 | Moderate rain | 17° /8° | 18.1 mm | 0 | |
| Apr. 28 | Sunny | 15° /5° | 0 mm | 3 | |
| Apr. 29 | Patchy rain possible | 19° /9° | 0.5 mm | 3 | |
| Apr. 30 | Sunny | 18° /9° | 0 mm | 4 | |
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Waterloo in April - FAQ
What are the expected maximum and minimum temperatures in Waterloo during April?
How much rainfall should be expected in Waterloo during April?
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April rainfall patterns in Waterloo
UV exposure in Waterloo during April
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