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Grinnell Weather in August

Thinking of visiting Grinnell in August? Expect high temperatures reaching 28°C (82°F) during the day, dropping to 16°C (61°F) at night, and note that quite a bit of rainfall is likely.

Rainfall in Grinnell in August

You can typically expect 11 days of rain this month, averaging around 125 mm (4.9 in). 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 Grinnell in August

Expect highs of 28°C (82°F) in Grinnell in August, with nights dropping to around 16°C (61°F). August is in the summer season. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. With lows of 16°C (61°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.

If your ideal day consists of dry skies and pleasant temperatures, September typically offers the best circumstances for Grinnell.

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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 Grinnell's climate page.

Grinnell Temperature in August

Min TemperatureMin Temperature 16°C (61°F)  
Max TemperatureMax Temperature 28°C (82°F)  
Chance of RainChance of Rain 37%  
PrecipitationPrecipitation 125 mm (4.9 in)  
Rainy daysRainy days 11 days  

Best Places in the United States of America in August

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 August →

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Legend 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 Grinnell in August

Warm temperatures in August make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Prepare for significant rainfall with proper waterproof clothing and shoes.

What To Do in Grinnell in August

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

Cycling
7/10
Walking
7/10
Camping
6/10
Outdoor sports
7/10

Select a Month

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 Grinnell's climate page.

More climate data for Grinnell