Junction City, IL Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Junction City, IL in one place.
Mostly sunny, with a high near 88. Southeast wind around 2 mph.
Local Weather Overview
This forecast page for Junction City, 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: Aug 28, 2026 4:02 AM CDT.
The active forecast window currently covers Aug 29 to Sep 3, 2026 for Junction City, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 29 to Sep 3, 2026
- Latest sync
- Aug 28, 2026 4:02 AM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Junction City
Thursday looks like the warmest upcoming period in Junction City at 99 degrees F.
Saturday Night is the coolest period ahead with temperatures near 65 degrees F.
The strongest winds are forecast for Sunday at about 2 to 10 mph S.
Precipitation is mentioned in 1 upcoming forecast period.
Forecast Details
- Last updated
- Aug 28, 2026 4:02 AM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- LSX
- Radar station
- KVWX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 65. Southeast wind around 2 mph.
Sunny, with a high near 93.
Mostly clear, with a low around 72.
Sunny, with a high near 96.
Mostly clear, with a low around 75.
Sunny, with a high near 97.
Mostly clear, with a low around 77.
Sunny, with a high near 98.
Mostly clear, with a low around 77.
A slight chance of rain showers between 7am and 1pm. Sunny, with a high near 99. Chance of precipitation is 20%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Aug 29
|
Mostly Sunny
|
88°F |
2 mph
SE
|
|
Saturday Night
Aug 29
|
Mostly Clear
|
65°F |
2 mph
SE
|
|
Sunday
Aug 30
|
Sunny
|
93°F |
2 to 10 mph
S
|
|
Sunday Night
Aug 30
|
Mostly Clear
|
72°F |
3 mph
S
|
|
Monday
Aug 31
|
Sunny
|
96°F |
3 to 9 mph
S
|
|
Monday Night
Aug 31
|
Mostly Clear
|
75°F |
5 mph
S
|
|
Tuesday
Sep 1
|
Sunny
|
97°F |
2 to 6 mph
SW
|
|
Tuesday Night
Sep 1
|
Mostly Clear
|
77°F |
3 mph
S
|
|
Wednesday
Sep 2
|
Sunny
|
98°F |
5 mph
SW
|
|
Wednesday Night
Sep 2
|
Mostly Clear
|
77°F |
3 mph
SW
|
|
Thursday
Sep 3
|
Slight Chance Rain Showers
|
99°F |
1 to 5 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Junction City.