Erwin, IL Weather Forecast
Local 7-day forecast
Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Erwin, IL in one place.
Showers and thunderstorms before 1pm. Mostly cloudy, with a high near 86. Northeast wind around 5 mph. Chance of precipitation is 80%.
Local Weather Overview
This forecast page for Erwin, 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: Sep 15, 2026 2:02 PM CDT.
The active forecast window currently covers Sep 16 to Sep 21, 2026 for Erwin, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 16 to Sep 21, 2026
- Latest sync
- Sep 15, 2026 2:02 PM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Erwin
Thursday looks like the warmest upcoming period in Erwin at 89 degrees F.
Monday Night is the coolest period ahead with temperatures near 54 degrees F.
The strongest winds are forecast for Saturday at about 9 to 13 mph SW.
Precipitation is mentioned in 10 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 15, 2026 2:02 PM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- ILX
- Radar station
- KILX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 70. Southeast wind around 3 mph. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 89. Northwest wind around 3 mph. Chance of precipitation is 30%.
A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 88. Chance of precipitation is 30%.
Mostly clear, with a low around 69.
A slight chance of rain showers between 7am and 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 87. Chance of precipitation is 30%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 50%.
A chance of rain showers before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 76. Chance of precipitation is 50%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 58. Chance of precipitation is 40%.
A slight chance of rain showers before 7am. Partly sunny, with a high near 73. Chance of precipitation is 20%.
Partly cloudy, with a low around 54.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Sep 16
|
Showers And Thunderstorms
|
86°F |
5 mph
NE
|
|
Wednesday Night
Sep 16
|
Partly Cloudy then Chance Showers And Thunderstorms
|
70°F |
3 mph
SE
|
|
Thursday
Sep 17
|
Chance Showers And Thunderstorms
|
89°F |
3 mph
NW
|
|
Thursday Night
Sep 17
|
Partly Cloudy then Chance Showers And Thunderstorms
|
68°F |
3 mph
NE
|
|
Friday
Sep 18
|
Chance Showers And Thunderstorms
|
88°F |
6 mph
SE
|
|
Friday Night
Sep 18
|
Mostly Clear
|
69°F |
5 to 8 mph
SE
|
|
Saturday
Sep 19
|
Chance Showers And Thunderstorms
|
87°F |
9 to 13 mph
SW
|
|
Saturday Night
Sep 19
|
Chance Showers And Thunderstorms
|
64°F |
7 mph
NW
|
|
Sunday
Sep 20
|
Chance Rain Showers
|
76°F |
5 to 10 mph
N
|
|
Sunday Night
Sep 20
|
Chance Showers And Thunderstorms
|
58°F |
5 to 9 mph
N
|
|
Monday
Sep 21
|
Slight Chance Rain Showers then Partly Sunny
|
73°F |
5 to 10 mph
NE
|
|
Monday Night
Sep 21
|
Partly Cloudy
|
54°F |
3 to 8 mph
NE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Erwin.