Porterfield, IL Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Porterfield, IL in one place.
Mostly sunny, with a high near 78. Southwest wind 14 to 18 mph, with gusts as high as 29 mph.
Local Weather Overview
This forecast page for Porterfield, 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: Apr 20, 2026 2:24 PM CDT.
The active forecast window currently covers Apr 21 to Apr 26, 2026 for Porterfield, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 21 to Apr 26, 2026
- Latest sync
- Apr 20, 2026 2:24 PM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Porterfield
Thursday looks like the warmest upcoming period in Porterfield at 81 degrees F.
Saturday Night is the coolest period ahead with temperatures near 46 degrees F.
The strongest winds are forecast for Thursday at about 9 to 21 mph S.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 20, 2026 2:24 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 between 7pm and 1am. Partly cloudy, with a low around 58. West southwest wind 9 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 40%. New rainfall amounts between a quarter and half of an inch possible.
Mostly sunny, with a high near 78. Southwest wind around 8 mph, with gusts as high as 16 mph.
Mostly clear, with a low around 59. South wind around 9 mph, with gusts as high as 18 mph.
Mostly sunny, with a high near 81. South wind 9 to 21 mph, with gusts as high as 31 mph.
A chance of showers and thunderstorms between 7pm and 1am, then showers and thunderstorms. Mostly cloudy, with a low around 61. Chance of precipitation is 80%.
Showers and thunderstorms. Mostly cloudy, with a high near 72. Chance of precipitation is 80%.
A chance of rain showers. Mostly cloudy, with a low around 48.
A slight chance of rain showers before 7am. Mostly sunny, with a high near 68.
A slight chance of rain showers after 7pm. Partly cloudy, with a low around 46.
A slight chance of rain showers. Mostly sunny, with a high near 67.
A chance of rain showers. Partly cloudy, with a low around 49.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Apr 21
|
Mostly Sunny
|
78°F |
14 to 18 mph
SW
|
|
Tuesday Night
Apr 21
|
Chance Showers And Thunderstorms
|
58°F |
9 to 15 mph
WSW
|
|
Wednesday
Apr 22
|
Mostly Sunny
|
78°F |
8 mph
SW
|
|
Wednesday Night
Apr 22
|
Mostly Clear
|
59°F |
9 mph
S
|
|
Thursday
Apr 23
|
Mostly Sunny
|
81°F |
9 to 21 mph
S
|
|
Thursday Night
Apr 23
|
Chance Showers And Thunderstorms
|
61°F |
17 to 21 mph
S
|
|
Friday
Apr 24
|
Showers And Thunderstorms
|
72°F |
14 to 17 mph
WSW
|
|
Friday Night
Apr 24
|
Chance Rain Showers
|
48°F |
8 to 12 mph
NW
|
|
Saturday
Apr 25
|
Slight Chance Rain Showers then Mostly Sunny
|
68°F |
12 mph
N
|
|
Saturday Night
Apr 25
|
Slight Chance Rain Showers
|
46°F |
7 to 10 mph
NNE
|
|
Sunday
Apr 26
|
Slight Chance Rain Showers
|
67°F |
10 mph
NNE
|
|
Sunday Night
Apr 26
|
Chance Rain Showers
|
49°F |
9 mph
E
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Porterfield.