Flagg, IL Weather Forecast

Feedback E-mail the Weather

Quick Weather Clicks

Flagg, IL Weather Forecast

Current Conditions

Settings
Flagg IL weather  - Clear - 31°F
Clear
31°F
Updated 8:17 am
Feels Like 33°F
Humidity 100%
Wind N 0 mph
Barometer  30.22 in
Dew Point 31°F
Flagg IL weather  - Clear - -0°C
Clear
-0°C
Updated 8:17 am
Feels Like 1°C
Humidity 100%
Wind N 0 km/h
Barometer  102.3 kPa
Dew Point -0°C

Flagg Weather Forecast

TODAY TONIGHT SUNDAY SUNDAY NIGHT MONDAY MONDAY NIGHT TUESDAY TUESDAY NIGHT VETERANS DAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT
Flagg, IL Weather - Today Clearing Flagg, IL Weather - Tonight Patchy Fog Flagg, IL Weather - Sunday Clearing Flagg, IL Weather - Sunday Night Mostly Clear Flagg, IL Weather - Monday Partly Cloudy Flagg, IL Weather - Monday Night Mostly Clear Flagg, IL Weather - Tuesday Mostly Sunny Flagg, IL Weather - Tuesday Night Partly Cloudy Flagg, IL Weather - Veterans Day Partly Cloudy Flagg, IL Weather - Wednesday Night Partly Cloudy Flagg, IL Weather - Thursday Partly Cloudy Flagg, IL Weather - Thursday Night Partly Cloudy
Clearing Patchy Fog Clearing Mostly Clear Partly Cloudy Mostly Clear Mostly Sunny Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy
Hi: 51°FHi: 11°C
Lo: 35°FLo: 2°C Hi: 59°FHi: 15°C
Lo: 31°FLo: -1°C Hi: 60°FHi: 16°C
Lo: 41°FLo: 5°C Hi: 61°FHi: 16°C
Lo: 35°FLo: 2°C Hi: 55°FHi: 13°C
Lo: 35°FLo: 2°C Hi: 49°FHi: 9°C
Lo: 30°FLo: -1°C
POP = Probability of Precipitation.
Weather Outlook Updated: 505 AM CST Sat Nov 07 2026 Flagg, IL Weather - WeatherWorld.com

Trending Headlines

Flagg Radar Loop

Use the map search tool if you want to place a location marker on the radar map...

Flagg Quick Facts

National Two Day Weather Forecast


E-mail the Flagg Weather Forecast

Voice your opinion or tell us about page issues...

Flagg Forecast Discussion

Meteorlogic Glosserator
Instant definitions for any meteorological term.

Issued: 546 AM CST Sat Nov 7 2026

Key Messages

  • Dry conditions and a warming trend will occur this weekend into early next week.
  • The next chance for precipitation is forecast mid-late next week and will likely be accompanied by cooler temperatures.

Discussion

... Issued at 213 AM CST Sat Nov 7 2026

An upper low tied to the subtropical jet stream will slowly meander across northern Mexico and Texas over the weekend and into early next week, yielding expansive, persistent ridging across the central CONUS. The polar jet stream will rema...