Yosemite National Park is definitely worth a visit
Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
Alton Weather in July
In Alton, July brings very high daytime temperatures around 31°C (88°F), with nights cooling to 21°C (70°F). Expect quite a bit of rainfall this month.
Rainfall in Alton in July
Typically, you can expect about 10 days of rain this month, with 102 mm (4 in) on average. Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.
Temperature in Alton in July
July in Alton brings typical temperatures with highs around 31°C (88°F) and lows of 21°C (70°F). Mornings and evenings are often more comfortable than the peak afternoon hours. Nights remain mild at 21°C (70°F), making evenings a pleasant time to be outdoors. These temperatures are typical, but it's wise to prepare for hotter days. Dress in light, airy clothing and protect yourself from the sun.
Sunshine in Alton in July
The city usually sees around 311 hours of sunlight, indicating many sunny days , a great month for sightseeing.Our weather planner can help you find worldwide destinations with pleasant weather during this period. September and October typically offer the best weather for Alton.
Alton Temperature in July
Min Temperature
21°C (70°F)
Max Temperature
31°C (88°F)
Chance of Rain
32%
Precipitation
102 mm (4 in)
Rainy days
10 days
Humidity
68% *
Sunshine
311 hours *
Percentage Sunshine
68% *
* Data from: St. Louis, the United States of America (29 KM, 18 Miles).
Alton Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Alton - and find the best time to visit.
Best Places in the United States of America in July
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in July →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Alton in July
Warm weather calls for comfortable, breathable clothing in July. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). High rain levels are expected, so pack waterproof gear and an umbrella or poncho. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.
What To Do in Alton in July
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming9/10 -
Cycling7/10 -
Walking7/10 -
Camping6/10 -
Outdoor sports7/10
Alton 3-Day Forecast
More climate data for Alton
Temperature Rainfall Sunshine Humidity
See the full Alton climate overview or explore weather in the United States of America.
Popular in July
Where to go in July - average daytime high across popular destinations.
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
Yosemite National Park is definitely worth a visit
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