Crystal Lake Weather in August

August in Crystal Lake brings high temperatures around 27°C (81°F) during the day, dropping to 16°C (61°F) at night, with quite a bit of rainfall expected, averaging around 110 mm (4.3 in) for the month.

Rainfall in Crystal Lake in August

You can typically expect 11 days of rain this month, averaging around 110 mm (4.3 in). When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Crystal Lake in August

Daytime temperatures in Crystal Lake reach 27°C (81°F) in August, dropping to 16°C (61°F) at night. During August, the summer season is in full swing. This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. With overnight lows of 16°C (61°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.

Sunshine in Crystal Lake in August

The days are predominantly sunny, with an estimated total of around 280 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.

For Crystal Lake itself, September generally stands out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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 Crystal Lake's climate page.

Crystal Lake Temperature in August

Min Temperature 16°C (61°F)  

Max Temperature 27°C (81°F)  

Chance of Rain 37%  

Precipitation 110 mm (4.3 in)  

Rainy days 11 days  

Humidity 71% *  

Sunshine 280 hours *  

Percentage Sunshine 66% *  

* Data from: Chicago, the United States of America (44 KM, 27 Miles).

What to Wear in Crystal Lake in August

Warm but pleasant conditions in Crystal Lake in August. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Expect heavy rainfall, so bring good rain protection and waterproof bags. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Crystal Lake in August

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

Swimming

9/10

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.

• 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 Crystal Lake's climate page.

More climate data for Crystal Lake

Temperature Rainfall Sunshine Humidity

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