Weather World
Archer, IL Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Archer Weather Forecast
| REST OF TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | LABOR DAY | MONDAY NIGHT | TUESDAY | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | FRIDAY |
 |  |  | | | | | | |  |  | |
| Mostly Clear | Sunny | Partly Cloudy | Mostly Sunny | Mostly Clear | Mostly Clear | Mostly Clear | Mostly Clear | Mostly Clear | Chance of Showers | Partly Cloudy | Partly Cloudy |
| Lo: 75°FLo: 24°C | Hi: 99°FHi: 37°C | Lo: 69°FLo: 21°C | Hi: 90°FHi: 32°C | Lo: 61°FLo: 16°C | Hi: 90°FHi: 32°C Lo: 65°FLo: 18°C | Hi: 90°FHi: 32°C Lo: 65°FLo: 18°C | Hi: 99°FHi: 37°C Lo: 75°FLo: 24°C | Hi: 99°FHi: 37°C Lo: 75°FLo: 24°C | Lo: 71°FLo: 22°C | Hi: 90°FHi: 32°C Lo: 65°FLo: 18°C | Hi: 90°FHi: 32°C Lo: 65°FLo: 18°C |
| POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1237 AM CDT Sat Sep 05 2026 
Archer Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Archer Weather Map
Archer Quick Facts
Archer Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 1215 AM CDT Sat Sep 5 2026
Key Messages
- Dangerous Heat Saturday: Heat index values will reach to around 105 degrees again on Saturday. The Extreme Heat Warning has been expanded to cover all of central Illinois.
- Brief Weekend Relief: A cold front pushing south will bring slight less hot and humid conditions to northern areas Sunday and Monday, dropping highs into the mid-to-upper 80s. Southern areas will remain warmer in the low 90s.
- Heat Returns Next Week: The brief break in oppressive heat will be short-lived. Widespread...