St. Louis, Missouri – Oppressive heat will blanket the Missouri-Illinois border through Saturday, with storm chances building just in time to complicate Fourth of July weekend plans.
According to the National Weather Service, the St. Louis metro area will reach 95°F on Independence Day with calm winds and clear skies. Saturday tops out near 96°F. These temperatures, combined with high humidity, will create sweltering conditions ideal for heat exhaustion. Residents are urged to limit outdoor exposure, check on elderly neighbors, and keep pets indoors.
Relief arrives Sunday—but not without risk. A 30% chance of afternoon thunderstorms begins after 1 p.m., with heavier downpours expected through Monday. The I-64 and I-55 corridors could see brief delays due to slick roads or lightning. Monday’s rain chance climbs to 50%, with storms continuing into Tuesday at a 40% probability. While not widespread, these showers may disrupt afternoon commutes, outdoor events, and utility services.
If you’re traveling, consider adjusting plans for earlier in the day and have a weather radio or alerts enabled on your phone. While most storms will be scattered, isolated gusty winds and downpours are possible.
What’s Next: Daily rain chances persist through at least Tuesday night, with highs staying near 91°F. Further advisories may be issued as timing sharpens.
🔭 Five-Day Forecast for St. Louis, MO (July 4–9):
- Friday (July 4): Mostly clear overnight | Low: 74°F
- Saturday (July 5): High: 96°F | Partly cloudy overnight | Low: 77°F
- Sunday (July 6): 30% chance of PM storms | High: 94°F | 30% storm chance overnight | Low: 74°F
- Monday (July 7): 50% chance of storms | High: 91°F | 20% storm chance overnight | Low: 72°F
- Tuesday (July 8): 40% chance of storms | High: 91°F | 30% chance overnight | Low: 72°F
