Marion, IL Weather Forecast
Local 7-day forecast
Showers And Thunderstorms Likely
Track current conditions, temperature changes, wind, and the full daily outlook for Marion, IL in one place.
Showers and thunderstorms likely. Partly sunny, with a high near 84. South wind 1 to 12 mph, with gusts as high as 18 mph. Chance of precipitation is 70%.
Local Weather Overview
This forecast page for Marion, 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: Oct 13, 2026 10:54 PM CDT.
The active forecast window currently covers Oct 15 to Oct 20, 2026 for Marion, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 15 to Oct 20, 2026
- Latest sync
- Oct 13, 2026 10:54 PM CDT
- Forecast office
- PAH
- Source
- NOAA / NWS
Daily Outlook
This Week in Marion
Thursday looks like the warmest upcoming period in Marion at 84 degrees F.
Saturday Night is the coolest period ahead with temperatures near 37 degrees F.
The strongest winds are forecast for Friday at about 21 mph NW.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 13, 2026 10:54 PM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- PAH
- Radar station
- KVWX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Showers and thunderstorms likely. Mostly cloudy, with a low around 52. West wind 7 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 70%.
A chance of rain showers before 7am. Mostly sunny, with a high near 61. Northwest wind around 21 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.
Mostly clear, with a low around 39. North wind 5 to 16 mph, with gusts as high as 24 mph.
Sunny, with a high near 61. Northeast wind 2 to 6 mph.
Clear, with a low around 37. East southeast wind around 1 mph.
Sunny, with a high near 69. South southeast wind 1 to 7 mph.
Partly cloudy, with a low around 45. South wind around 5 mph.
Mostly sunny, with a high near 71. South wind 2 to 7 mph.
Mostly cloudy, with a low around 49. Southeast wind around 2 mph.
Mostly sunny, with a high near 77. South southeast wind 0 to 3 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Oct 15
|
Showers And Thunderstorms Likely
|
84°F |
1 to 12 mph
S
|
|
Thursday Night
Oct 15
|
Showers And Thunderstorms Likely
|
52°F |
7 to 17 mph
W
|
|
Friday
Oct 16
|
Chance Rain Showers then Mostly Sunny
|
61°F |
21 mph
NW
|
|
Friday Night
Oct 16
|
Mostly Clear
|
39°F |
5 to 16 mph
N
|
|
Saturday
Oct 17
|
Sunny
|
61°F |
2 to 6 mph
NE
|
|
Saturday Night
Oct 17
|
Clear
|
37°F |
1 mph
ESE
|
|
Sunday
Oct 18
|
Sunny
|
69°F |
1 to 7 mph
SSE
|
|
Sunday Night
Oct 18
|
Partly Cloudy
|
45°F |
5 mph
S
|
|
Monday
Oct 19
|
Mostly Sunny
|
71°F |
2 to 7 mph
S
|
|
Monday Night
Oct 19
|
Mostly Cloudy
|
49°F |
2 mph
SE
|
|
Tuesday
Oct 20
|
Mostly Sunny
|
77°F |
0 to 3 mph
SSE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Marion.
