Click on a day for an hourly weather forecast
The temperatures in Altoona in May are quite cold with temperatures between 9°C and 21°C, warm clothes are a must.
You can expect rain for roughly half of the month of May in Altoona. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Altoona in May 2025.
If you’re planning to visit Altoona in the near future, we highly recommend that you review the 14 day weather forecast for Altoona before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 0° / -8° | 8 | 7 | 17 | 103 mm | Awful | Altoona in January |
| February | 2° / -6° | 8 | 6 | 15 | 119 mm | Awful | Altoona in February |
| March | 8° / -2° | 9 | 13 | 9 | 127 mm | Awful | Altoona in March |
| April | 15° / 3° | 10 | 17 | 3 | 143 mm | Bad | Altoona in April |
| May | 21° / 9° | 11 | 20 | 0 | 170 mm | Ok | Altoona in May |
| June | 26° / 12° | 8 | 22 | 0 | 145 mm | Good | Altoona in June |
| July | 29° / 15° | 9 | 22 | 0 | 147 mm | Ok | Altoona in July |
| August | 28° / 14° | 7 | 24 | 0 | 121 mm | Good | Altoona in August |
| September | 24° / 11° | 5 | 25 | 0 | 125 mm | Perfect | Altoona in September |
| October | 17° / 6° | 6 | 24 | 1 | 128 mm | Good | Altoona in October |
| November | 9° / -1° | 6 | 19 | 5 | 88 mm | Bad | Altoona in November |
| December | 4° / -4° | 9 | 11 | 11 | 124 mm | Awful | Altoona in December |