Illinois Golf Weather
April–October. Mid-summer can hit Florida-level humidity; mornings are best. Fall is the prize — crisp, dry, low dew points, late-September peak.
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Best weather window
September, June, August, July
Based on typical conditions near Chicago. This is a climate planning guide, not a forecast for every part of Illinois.
Illinois golf weather by month
Typical climate near Chicago, the largest golf-city cluster in Stymie's Illinois directory, paired with estimated course-season availability statewide.
| Month | Golf outlook | Typical temp | Est. dew point | Rain | Wind | Est. courses open* |
|---|---|---|---|---|---|---|
| January | Limited | 27°F | 23°F | 1.9" | 16 mph | 239 |
| February | Limited | 28°F | 24°F | 2.1" | 15 mph | 247 |
| March | Limited | 36°F | 31°F | 2.4" | 13 mph | 531 |
| April | Limited | 44°F | 39°F | 3.7" | 13 mph | 844 |
| May | Playable | 53°F | 48°F | 4.6" | 11 mph | 855 |
| June | Best | 65°F | 59°F | 4" | 10 mph | 855 |
| July | Very good | 73°F | 66°F | 3.7" | 9 mph | 855 |
| August | Very good | 73°F | 65°F | 4.1" | 9 mph | 855 |
| September | Best | 66°F | 58°F | 3.4" | 11 mph | 855 |
| October | Playable | 54°F | 47°F | 3.9" | 14 mph | 852 |
| November | Limited | 43°F | 37°F | 2.4" | 15 mph | 711 |
| December | Limited | 33°F | 29°F | 2.3" | 15 mph | 353 |
Climate values are NASA POWER 2001–2020 climatology at a representative golf-city point; dew point is estimated from typical temperature and relative humidity. Method and source. *Estimated open uses the published-course monthly open rate across Illinois's eligible course directory.
Top Illinois golf cities — pick one for the local forecast
Chicago
Forecast · 15 courses
Peoria
Forecast · 14 courses
Lockport
Forecast · 12 courses
Springfield
Forecast · 10 courses
Naperville
Forecast · 10 courses
Mundelein
Forecast · 9 courses
Orland Park
Forecast · 9 courses
Highland Park
Forecast · 9 courses
Decatur
Forecast · 9 courses
Geneva
Forecast · 9 courses
Alton
Forecast · 7 courses
Aurora
Forecast · 7 courses
Illinois golf weather — frequently asked
When is the best time to play golf in Illinois?
September, June, August, July score highest in Stymie's 12-month planning model near Chicago. The model combines NASA POWER typical temperature, estimated dew point, precipitation, and wind; conditions vary across Illinois, so use the city forecast before booking.
What dew point is comfortable for golf in Illinois?
Dew points under 60°F are generally comfortable for golf. Below 50°F feels dry and crisp. Above 70°F, wet grips, heat stress, and dehydration matter more, although humid air itself is slightly less dense and does not make the ball fly shorter.
How does altitude affect golf in Illinois?
Most Illinois courses sit at low elevation, so altitude doesn't meaningfully change ball flight. Pick a city below for the local forecast and conditions.
Where can I check weather for a specific Illinois golf course?
Open the course on Stymie's directory and use the weather card on the right side of the course page — it links to a course-specific forecast at /weather?course={course-slug}. Or pick a city below for an area-wide read.