Weather WorldFairview Heights, IL Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Fairview Heights Weather Forecast
| REST OF TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY |
 |  |  | | |  |  | | | |  |  |
| Thunderstorms | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Mostly Sunny | Mostly Clear | Clear | Clear | Sunny | Partly Cloudy | Partly Cloudy |
| Lo: 71°FLo: 22°C | Hi: 79°FHi: 26°C | Lo: 65°FLo: 18°C | Hi: 81°FHi: 27°C | Lo: 49°FLo: 9°C | Hi: 60°FHi: 16°C | Lo: 39°FLo: 4°C | Hi: 61°FHi: 16°C Lo: 39°FLo: 4°C | Hi: 61°FHi: 16°C Lo: 39°FLo: 4°C | Hi: 70°FHi: 21°C | Hi: 71°FHi: 22°C Lo: 45°FLo: 7°C | Hi: 71°FHi: 22°C Lo: 45°FLo: 7°C |
| POP: 70% | POP: 100% | POP: 50% | POP: 70% | POP: 80% |
POP = Probability of Precipitation.
Weather Outlook Updated: 127 AM CDT Wed Oct 14 2026 
Fairview Heights Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Fairview Heights Weather Map
Fairview Heights Quick Facts
Fairview Heights Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 1123 PM CDT Tue Oct 13 2026
Key Messages
- Unseasonable, record-breaking heat ends today.
- Two main rounds of showers and thunderstorms are expected through Thursday: one tonight into Wednesday morning and another late Wednesday night into Thursday morning. There is a low chance of an isolated severe thunderstorm late this evening as well as locally heavy rainfall with both rounds.
- Behind a strong cold front Thursday night, more seasonable temperatures and dry conditions will arrive Friday into the weekend.
Aviation
/00Z TAFS TH...