Fourth of July Weather Forecast
The Fourth of July holiday is just hours away, with millions of Americans traveling and preparing for family gatherings celebrating Independence Day. While balmy temperatures are to be expected for the quintessential summer holiday, the Chicago area has some particularly hot and humid weather in store for the upcoming days, with some possible thunderstorms on the back half of the weekend.
Temperature Expectations
For the holiday itself, high temperatures are expected to rise well into the 90s, though temperatures will remain slightly lower near Lake Michigan. This is due to the cooling effect of the lake, which can bring temperatures down by as much as 10 degrees in some areas.
Most areas will remain dry today, though a few storms may be able to develop late this PM-eve. There’s also a low chance for showers/storms N of I-80 later tonight into Fri. Otherwise, Sunday has highest chance for scattered storms this weekend. #ILwx #INwx pic.twitter.com/aemC7rs4zB
— NWS Chicago (@NWSChicago) July 3, 2025
While conditions will be quite hot for the holiday, it won’t feel quite as hot and oppressive as the recent heat wave that enveloped the Chicago area late last month. This is because the heat index, which takes into account both temperature and humidity, is expected to be slightly lower than it was during the heat wave.
Weekend Weather Forecast
Overnight lows are expected to drop into the low-to-mid 70s Friday evening, with similar conditions forecasted for Saturday. The mercury could rise slightly higher during daytime hours Saturday, with some parts of the region potentially seeing highs in the upper 90s. While most of the area is likely to stay dry, the northwest suburbs could see a stray thunderstorm in the late daytime hours.
That small chance of thunderstorms persists in the northwest suburbs into Saturday evening, with humid conditions and lows ranging across the 70s throughout the region. On both Friday and Saturday, peak heat indices across the area are expected to range between 95 and 100 degrees, falling slightly below the temperatures felt during the late June heat wave.
Sunday’s Weather Forecast
Scattered thunderstorms across the Chicago area are forecasted for Sunday, as humid conditions persist alongside relatively cooler temperatures, with highs in the mid-to-upper 80s. Isolated and scattered thunderstorms are expected to continue through Sunday evening, with lows falling into the 60s for much of the region.
This cooler weather will be a welcome relief for many, especially after the hot and humid conditions of the previous days. However, it’s still important to stay hydrated and take breaks in the shade or air conditioning if needed.
Staying Safe in the Heat
With hot and humid weather expected for much of the weekend, it’s essential to take steps to stay safe. This includes drinking plenty of water, wearing lightweight and light-colored clothing, and taking breaks in the shade or air conditioning. It’s also important to check on vulnerable neighbors, such as the elderly or young children, to make sure they are staying cool and safe.
Additionally, it’s a good idea to stay informed about the latest weather forecast and any heat-related warnings or advisories that may be issued. This can help you plan your activities and stay safe during the hot and humid weather.
Conclusion
In conclusion, the Chicago area is expected to experience hot and humid weather over the Fourth of July weekend, with temperatures rising into the 90s and heat indices ranging from 95 to 100 degrees. While the heat won’t be as oppressive as the recent heat wave, it’s still essential to take steps to stay safe and cool. With scattered thunderstorms forecasted for Sunday, it’s also important to stay informed about the latest weather forecast and any heat-related warnings or advisories that may be issued.
FAQs
Q: What are the expected high temperatures for the Fourth of July holiday?
A: High temperatures are expected to rise well into the 90s, though temperatures will remain slightly lower near Lake Michigan.
Q: Will it feel as hot and oppressive as the recent heat wave?
A: No, the heat index is expected to be slightly lower than it was during the heat wave, so it won’t feel quite as hot and oppressive.
Q: Are there any chances of thunderstorms over the weekend?
A: Yes, there is a small chance of thunderstorms in the northwest suburbs on Saturday, and scattered thunderstorms are forecasted for Sunday.
Q: How can I stay safe in the heat?
A: To stay safe in the heat, drink plenty of water, wear lightweight and light-colored clothing, and take breaks in the shade or air conditioning. It’s also essential to check on vulnerable neighbors and stay informed about the latest weather forecast and any heat-related warnings or advisories that may be issued.
