Sioux Falls Weather in July
July in Sioux Falls typically sees daytime highs of 29°C (84°F) and nighttime lows of 17°C (63°F). Rainfall is also possible this month, so it's worth packing an umbrella.
Rainfall in Sioux Falls in July
Typically around 8 days of rainfall are expected, averaging 80 mm (3.1 in) for the month. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.
Temperature in Sioux Falls in July
Sioux Falls in July is worth a visit. The temperature is perfect, with 29°C (84°F) during the day and 17°C (63°F) at night. This kind of day-to-night contrast is typical for this time of year. Nights cool down to 17°C (63°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions. This month tends to be the warmest of the year. Light, comfortable clothing will serve you well.So this is a great month to visit if you prefer dry days with pleasant temperatures.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Sioux Falls's climate page.
Sioux Falls Temperature in July
Min Temperature
17°C (63°F)
Max Temperature
29°C (84°F)
Chance of Rain
27%
Precipitation
80 mm (3.1 in)
Rainy days
8 days
Humidity
65%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Sioux Falls typically stay consistent throughout July, with daily highs averaging around 29°C (84°F). Nights are pleasant, with lows typically ranging from 16°C (61°F) to 19°C (66°F).
Average temperatures in July
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in July
Historical weather for Sioux Falls in July
Browse day-by-day weather records for Sioux Falls spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Sioux Falls historical weather extremes in July
Based on weather observations in Sioux Falls between 1976 and 2025, these are the recorded extremes during July.
- The warmest day in July was on July 12, 1995, with a maximum of 42°C (108°F).
- The coldest July day was on July 22, 1992, with a maximum of 16°C (61°F).
- The lowest overnight temperature recorded in July was 7°C (45°F) (July 10, 1996).
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
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What to Wear in Sioux Falls 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.What To Do in Sioux Falls in July
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Sioux Falls's climate page.
See the full Sioux Falls climate overview or explore weather in the United States of America.
