Weather WorldBlair, IL Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Blair Weather Forecast
| OVERNIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY |
 |  |  |  | | | | |  | | |  |
| Partly Cloudy | Partly Sunny | Mostly Cloudy | Mostly Sunny | Partly Cloudy | Mostly Sunny | Mostly Cloudy | Mostly Cloudy | Chance of T-Storm | Partly Sunny | Partly Cloudy | Partly Cloudy |
| Lo: 59°FLo: 15°C | Hi: 75°FHi: 24°C | Lo: 55°FLo: 13°C | Hi: 79°FHi: 26°C | Lo: 55°FLo: 13°C | Hi: 79°FHi: 26°C | Hi: 79°FHi: 26°C Lo: 55°FLo: 13°C | Hi: 79°FHi: 26°C Lo: 55°FLo: 13°C | Lo: 55°FLo: 13°C | Hi: 80°FHi: 27°C | Hi: 81°FHi: 27°C Lo: 59°FLo: 15°C | Hi: 81°FHi: 27°C Lo: 59°FLo: 15°C |
| POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1053 PM CDT Tue Sep 22 2026 
Blair Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Blair Weather Map
Blair Quick Facts
Blair Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 634 PM CDT Tue Sep 22 2026
Key Messages
- Hazardous weather is not anticipated through the forecast period as temperatures slowly warm.
Aviation
/00Z TAFS THROUGH 06Z THURSDAY/... Issued at 629 PM CDT Tue Sep 22 2026
Ceilings between 2000-3000 feet are likely early in the period at COU/JEF, though expect ceilings to improve to low VFR at these locations by 02-03Z. Otherwise, mainly dry and low VFR ceilings are expected through the period with a low chance (<30%) that there will be some MVFR ceilings late tonight and early Wednesday (between 08-13Z). Winds will remain out of the north to northeast at less than 10 knots.
Watches / Warnings / Advisories
/WARNINGS/ADVISORIES... MO...None. IL...None.