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Chicago Dew Point & Frizz Forecast

Q: What is the dew point in Chicago in summer?

Over 2016–2025, Chicago's most humid month was July, with an average dew point of about 65 °F (19 °C). About 84% of days that month reached 60 °F or more — frizz territory for most textured hair.

Q: When is the best time to get a silk press in Chicago?

Historically, February, March and December had the fewest frizz-risk days in Chicago. Whatever the month, check the live forecast above for the week of your appointment and wrap your hair every night.

Q: Does glycerin work in Chicago?

Yes, for part of the year. Glycerin-friendly dew points (35–60 °F) were most common in April through June, September and October. In July and August high dew points can make glycerin-heavy products puff. In November through March the air is often too dry for heavy humectants.

Q: How many frizz days does Chicago get a year?

Roughly 83 days a year had a daily average dew point of 60 °F or higher, and about 135 days were below 35 °F, based on 2016–2025 weather records.

Today's dew point hair forecast for Chicago, IL, plus when frizz season and glycerin-friendly weather usually arrive.

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Dry air< 35 °F

Hair-friendly35 °F–60 °F

Frizz risk60 °F–65 °F

High frizz65 °F+

Hair weather in Chicago

Based on daily weather records for 2016–2025, the average dew point in Chicago ranges from about 19 °F in January to about 65 °F in July. In a typical year that adds up to roughly 83 days with a frizz-risk dew point (60 °F or higher) and 135 days of dry air (below 35 °F).

Frizz season runs July and August: in July, about 84% of days sit at or above 60 °F. That is when silk presses revert fastest and glycerin-heavy stylers tend to puff. Humidity-resistant gels, anti-humidity sprays and protective styles carry you through.

Glycerin-friendly weather (35–60 °F dew points on most days) is most common in April through June, September and October. Those are good months for humectant leave-ins and glycerin-based gels.

November through March are usually dry: the air pulls water out of hair, so seal with an oil or butter, choose richer leave-ins and use glycerin sparingly.

If you are planning a silk press, February, March and December have historically had the fewest frizz-risk days in Chicago. Check the live forecast above before your appointment — individual weeks can differ a lot from the average.

The live forecast above uses the same scale as the table below: under 35 °F is dry air, 35–60 °F is hair-friendly, 60–65 °F brings frizz risk and 65 °F or more means high frizz. Read more about how the scale works on the dew point hair forecast page.

Chicago dew point by month

Month	Avg dew point	Avg temp	Humidity	Dry days	Hair-friendly	Frizz days
January	19 °F (-7 °C) Dry air	26 °F	75%	93%	7%	0%
February	21 °F (-6 °C) Dry air	29 °F	73%	88%	12%	0%
March	30 °F (-1 °C) Dry air	39 °F	73%	71%	29%	0%
April	38 °F (3 °C) Hair-friendly	47 °F	72%	39%	60%	1%
May	49 °F (10 °C) Hair-friendly	58 °F	75%	6%	82%	13%
June	59 °F (15 °C) Hair-friendly	70 °F	72%	0%	55%	45%
July	65 °F (19 °C) High frizz	74 °F	77%	0%	17%	84%
August	64 °F (18 °C) Frizz risk	73 °F	76%	0%	26%	74%
September	58 °F (15 °C) Hair-friendly	68 °F	74%	0%	54%	46%
October	46 °F (8 °C) Hair-friendly	55 °F	73%	12%	78%	9%
November	33 °F (1 °C) Dry air	41 °F	73%	56%	43%	1%
December	24 °F (-4 °C) Dry air	32 °F	75%	80%	20%	0%

Monthly averages of daily means, 2016–2025, from the Open-Meteo Historical Weather API (ERA5 reanalysis, CC BY 4.0). “Frizz days” = daily dew point of 60 °F or higher; “dry days” = below 35 °F.

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Frequently asked questions

What is the dew point in Chicago in summer?

Over 2016–2025, Chicago's most humid month was July, with an average dew point of about 65 °F (19 °C). About 84% of days that month reached 60 °F or more — frizz territory for most textured hair.

When is the best time to get a silk press in Chicago?

Historically, February, March and December had the fewest frizz-risk days in Chicago. Whatever the month, check the live forecast above for the week of your appointment and wrap your hair every night.

Does glycerin work in Chicago?

Yes, for part of the year. Glycerin-friendly dew points (35–60 °F) were most common in April through June, September and October. In July and August high dew points can make glycerin-heavy products puff. In November through March the air is often too dry for heavy humectants.