Click on a day for an hourly weather forecast
The temperatures in Peoria during August are extremely high, between 30°C and hot as 39°C, drinking water regularly is advisable.
You can expect about 3 to 8 days of rain in Peoria during the month of August. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Peoria in August 2025.
If you’re planning to visit Peoria in the near future, we highly recommend that you review the 14 day weather forecast for Peoria before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 19° / 9° | 1 | 30 | 0 | 37 mm | Good | Peoria in January |
| February | 20° / 11° | 2 | 26 | 0 | 30 mm | Good | Peoria in February |
| March | 24° / 14° | 1 | 30 | 0 | 24 mm | Perfect | Peoria in March |
| April | 28° / 17° | 1 | 29 | 0 | 9 mm | Perfect | Peoria in April |
| May | 33° / 21° | 0 | 31 | 0 | 6 mm | Good | Peoria in May |
| June | 38° / 26° | 0 | 30 | 0 | 6 mm | Bad | Peoria in June |
| July | 39° / 30° | 4 | 27 | 0 | 63 mm | Bad | Peoria in July |
| August | 39° / 30° | 3 | 28 | 0 | 66 mm | Bad | Peoria in August |
| September | 36° / 28° | 2 | 28 | 0 | 53 mm | Ok | Peoria in September |
| October | 31° / 21° | 2 | 29 | 0 | 38 mm | Good | Peoria in October |
| November | 24° / 15° | 1 | 29 | 0 | 22 mm | Perfect | Peoria in November |
| December | 18° / 9° | 2 | 29 | 0 | 34 mm | Good | Peoria in December |