Iroquois County, IL Weather Forecast
County weather hub
Chance Rain Showers
Compare major city weather across Iroquois County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
A chance of rain showers before 3am. Cloudy. Low around 50, with temperatures rising to around 53 overnight. West northwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
County Weather Overview
This county weather page brings together forecast coverage for Iroquois County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 2 of 2 mapped cities in Iroquois County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Oct 16 to Oct 22, 2026
- Latest sync
- Oct 16, 2026 4:37 AM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Iroquois County
Thursday looks like the warmest upcoming period in Iroquois County at 77 degrees F.
Saturday Night is the coolest period ahead with temperatures near 34 degrees F.
The strongest winds are forecast for Friday at about 15 to 20 mph NW.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 16, 2026 4:37 AM CDT
- Coverage
- 7 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
Scattered rain showers after 1pm. Cloudy, with a high near 54. Northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Scattered rain showers before 7pm. Partly cloudy, with a low around 38. North northwest wind 10 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Sunny, with a high near 56. North wind 0 to 5 mph.
Areas of frost after 2am. Clear, with a low around 34. South wind around 0 mph.
Areas of frost before 8am. Sunny, with a high near 66.
Mostly clear, with a low around 38.
Sunny, with a high near 71.
Partly cloudy, with a low around 41.
Mostly sunny, with a high near 74.
Mostly clear, with a low around 44.
Sunny, with a high near 76.
Mostly clear, with a low around 47.
Sunny, with a high near 77.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Oct 16
|
Chance Rain Showers
|
50°F |
15 mph
WNW
|
|
Friday
Oct 16
|
Cloudy then Scattered Rain Showers
|
54°F |
15 to 20 mph
NW
|
|
Friday Night
Oct 16
|
Scattered Rain Showers then Partly Cloudy
|
38°F |
10 to 20 mph
NNW
|
|
Saturday
Oct 17
|
Sunny
|
56°F |
0 to 5 mph
N
|
|
Saturday Night
Oct 17
|
Clear then Areas Of Frost
|
34°F |
0 mph
|
|
Sunday
Oct 18
|
Areas Of Frost then Sunny
|
66°F |
0 to 5 mph
S
|
|
Sunday Night
Oct 18
|
Mostly Clear
|
38°F |
0 to 5 mph
S
|
|
Monday
Oct 19
|
Sunny
|
71°F |
0 mph
|
|
Monday Night
Oct 19
|
Partly Cloudy
|
41°F |
0 mph
|
|
Tuesday
Oct 20
|
Mostly Sunny
|
74°F |
0 mph
|
|
Tuesday Night
Oct 20
|
Mostly Clear
|
44°F |
0 mph
|
|
Wednesday
Oct 21
|
Sunny
|
76°F |
0 mph
|
|
Wednesday Night
Oct 21
|
Mostly Clear
|
47°F |
0 mph
|
|
Thursday
Oct 22
|
Sunny
|
77°F |
0 mph
|
Major City Forecasts
Live forecast snapshots for major cities across Iroquois County.
Coverage
Forecast coverage currently spans 2 of 2 mapped cities in Iroquois County.
Largest mapped city population in this region: 4,694.
