Altoona Weather in September

September in Altoona brings high temperatures, with highs of 23°C (73°F) and nights dropping to 12°C (54°F). Rainfall is on the higher side this month, averaging around 96 mm (3.8 in), so keep a rain jacket handy.

Rainfall in Altoona in September

Historically, September sees about 12 days of rain, with a monthly average of 96 mm (3.8 in). Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.

Temperature in Altoona in September

Weather in Altoona is at its excellent in September. Highs reach 23°C (73°F), while nights settle around 12°C (54°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. At 12°C (54°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.

If you're inclined towards comfortable temperatures and drier conditions, September is a good time to visit Altoona.

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For a detailed overview over the year and the best time to visit the United States of America, check out our Altoona's climate page.

Altoona Temperature in September

Min Temperature 12°C (54°F)  

Max Temperature 23°C (73°F)  

Chance of Rain 41%  

Precipitation 96 mm (3.8 in)  

Rainy days 12 days  

What to Wear in Altoona in September

Pleasant temperatures in September mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Prepare for significant rainfall with proper waterproof clothing and shoes.

What To Do in Altoona in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Cycling

9/10

Walking

9/10

Camping

8/10

Outdoor sports

9/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Altoona's climate page.

More climate data for Altoona

Temperature Rainfall

See the full Altoona climate overview or explore weather in the United States of America.