Flagg, IL Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Flagg, IL in one place.
Sunny, with a high near 84.
Local Weather Overview
This forecast page for Flagg, IL is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: May 27, 2026 7:22 PM CDT.
The active forecast window currently covers May 30 to Jun 2, 2026 for Flagg, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- May 30 to Jun 2, 2026
- Latest sync
- May 27, 2026 7:22 PM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Flagg
Saturday looks like the warmest upcoming period in Flagg at 84 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 53 degrees F.
The strongest winds are forecast for Saturday at about 0 to 15 mph ENE.
Precipitation is mentioned in 2 upcoming forecast periods.
Forecast Details
- Last updated
- May 27, 2026 7:22 PM CDT
- Coverage
- 4 days
- Time zone
- America/Chicago
- Forecast office
- LOT
- Radar station
- KLOT
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly cloudy, with a low around 55.
Mostly sunny, with a high near 82.
A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 55.
A slight chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 82.
Mostly clear, with a low around 54.
Sunny, with a high near 80.
Clear, with a low around 53.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
May 30
|
Sunny
|
84°F |
0 to 15 mph
ENE
|
|
Saturday Night
May 30
|
Partly Cloudy
|
55°F |
5 to 15 mph
E
|
|
Sunday
May 31
|
Mostly Sunny
|
82°F |
5 mph
ESE
|
|
Sunday Night
May 31
|
Partly Cloudy then Slight Chance Showers And Thunderstorms
|
55°F |
0 to 5 mph
E
|
|
Monday
Jun 1
|
Slight Chance Showers And Thunderstorms then Mostly Sunny
|
82°F |
0 to 10 mph
NE
|
|
Monday Night
Jun 1
|
Mostly Clear
|
54°F |
5 to 15 mph
NE
|
|
Tuesday
Jun 2
|
Sunny
|
80°F |
5 to 10 mph
NE
|
|
Tuesday Night
Jun 2
|
Clear
|
53°F |
5 to 10 mph
ENE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Flagg.
