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Prospect Heights, United States Snapshot 2026
Where is Prospect Heights?
Prospect Heights, United States
- Continent
- Americas
- Country
- United States
- City
- Prospect Heights
- Population
- 16.4K
- Elevation
- 204 m
- Coordinates
- 42.10°, -87.94°
Prospect Heights is a city in United States with a population of approximately 16.4K. Average temperatures range from -6°C (21°F) in January to 27°C (81°F) in July. The best time to visit is June, July, August, September, October. The city sits at an elevation of 204 m above sea level.
Time in Prospect Heights right now
Open full time & time zone page 03:39 39
Tuesday, June 16, 2026
IANA time zone
America/Chicago
Daylight saving
DST in effect
CST / CDT
Next DST change
November 1
backward -1h
Live weather in Prospect Heights
Daylight in Prospect Heights today
View full sunrise & sunset page Sunrise
Sunset
Day length
15h 14m
Climate normals for Prospect Heights
Long-term monthly averages based on historical data.
January
Poor 
February
Poor March
Poor April
Fair May
Good June best
Excellent July best
Excellent August best
Excellent September best
Excellent October best
Good November
Poor December
Poor | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 0°C / -6°C | -4°C / -11°C | 9days (61 mm) Wet | 5.1h Fair | 73% Muggy | 2.1 Moderate | Poor | View Details |
| February | 3°C / -5°C | -2°C / -10°C | 8days (49 mm) Wet | 6.9h Fair | 70% Muggy | 3.3 Moderate | Poor | View Details |
| March | 8°C / 0°C | 5°C / -4°C | 11days (89 mm) Wet | 7.8h Good | 69% Muggy | 4.5 Moderate | Poor | View Details |
| April | 13°C / 4°C | 11°C / 1°C | 13days (110 mm) Wet | 8.9h Good | 70% Muggy | 5.3 High | Fair | View Details |
| May | 19°C / 10°C | 19°C / 8°C | 13days (125 mm) Wet | 10.3h Excellent | 73% Muggy | 6.6 High | Good | View Details |
| June best | 25°C / 17°C | 27°C / 16°C | 12days (108 mm) Wet | 11.9h Excellent | 72% Muggy | 7.1 Very High | Excellent | View Details |
| July best | 27°C / 20°C | 30°C / 21°C | 12days (103 mm) Wet | 12h Excellent | 74% Muggy | 7 High | Excellent | View Details |
| August best | 27°C / 19°C | 29°C / 21°C | 11days (85 mm) Wet | 11.4h Excellent | 73% Muggy | 6.5 High | Excellent | View Details |
| September best | 24°C / 17°C | 25°C / 16°C | 9days (72 mm) Wet | 9.6h Good | 71% Muggy | 5.2 High | Excellent | View Details |
| October best | 17°C / 10°C | 15°C / 7°C | 10days (98 mm) Wet | 7.4h Good | 69% Muggy | 3.7 Moderate | Good | View Details |
| November | 9°C / 3°C | 5°C / -1°C | 7days (52 mm) Good | 6.1h Fair | 69% Muggy | 2.5 Moderate | Poor | View Details |
| December | 3°C / -3°C | -1°C / -8°C | 8days (54 mm) Wet | 5.1h Fair | 72% Muggy | 1.8 Low | Poor | View Details |
Monthly Temperatures
HighLow
Line chart showing monthly temperatures. Jan: 0°C / -6°C . Feb: 3°C / -5°C . Mar: 8°C / 0°C . Apr: 13°C / 4°C . May: 19°C / 10°C . Jun: 25°C / 17°C . Jul: 27°C / 20°C . Aug: 27°C / 19°C . Sep: 24°C / 17°C . Oct: 17°C / 10°C . Nov: 9°C / 3°C . Dec: 3°C / -3°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 61 mm. Feb: 49 mm. Mar: 89 mm. Apr: 110 mm. May: 125 mm. Jun: 108 mm. Jul: 103 mm. Aug: 85 mm. Sep: 72 mm. Oct: 98 mm. Nov: 52 mm. Dec: 54 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 73%. Feb: 70%. Mar: 69%. Apr: 70%. May: 73%. Jun: 72%. Jul: 74%. Aug: 73%. Sep: 71%. Oct: 69%. Nov: 69%. Dec: 72%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 20 km/h . Feb: 21 km/h . Mar: 21 km/h . Apr: 21 km/h . May: 19 km/h . Jun: 18 km/h . Jul: 15 km/h . Aug: 15 km/h . Sep: 17 km/h . Oct: 20 km/h . Nov: 20 km/h . Dec: 20 km/h .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 2. Feb: UV 3. Mar: UV 5. Apr: UV 5. May: UV 7. Jun: UV 7. Jul: UV 7. Aug: UV 7. Sep: UV 5. Oct: UV 4. Nov: UV 3. Dec: UV 2.
Frequently Asked Questions
Prospect Heights has a population of approximately 16.4K.
The best months to visit Prospect Heights are June, July, August, September, October, when temperatures are pleasant and rainfall is lower.
Prospect Heights receives approximately 1006mm of rainfall annually across 123 rainy days.
Prospect Heights is located in United States, in the Americas region.
Prospect Heights sits at an elevation of 204 m (669 ft) above sea level.