Marseilles, IL Weather Forecast
Local 7-day forecast
Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Marseilles, IL in one place.
Showers and thunderstorms. Cloudy, with a high near 66. Southeast wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Local Weather Overview
This forecast page for Marseilles, 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 15, 2026 3:11 PM CDT.
The active forecast window currently covers Oct 15 to Oct 21, 2026 for Marseilles, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 15 to Oct 21, 2026
- Latest sync
- Oct 15, 2026 3:11 PM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Marseilles
Wednesday looks like the warmest upcoming period in Marseilles at 73 degrees F.
Friday Night is the coolest period ahead with temperatures near 34 degrees F.
The strongest winds are forecast for Tonight at about 5 to 20 mph W.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 15, 2026 3:11 PM 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
Showers and thunderstorms likely before 1am. Cloudy. Low around 47, with temperatures rising to around 50 overnight. West wind 5 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
A chance of rain showers after noon. Mostly cloudy. High near 54, with temperatures falling to around 52 in the afternoon. Northwest wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
A chance of rain showers before 7pm, then patchy frost. Mostly clear, with a low around 34. North northwest wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.
Areas of frost before 9am. Sunny, with a high near 58. West northwest wind 0 to 5 mph.
Clear, with a low around 38.
Sunny, with a high near 66.
Mostly clear, with a low around 42.
Mostly sunny, with a high near 69.
Partly cloudy, with a low around 44.
Mostly sunny, with a high near 71.
Mostly clear, with a low around 47.
Sunny, with a high near 73.
Partly cloudy, with a low around 51.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Oct 15
|
Showers And Thunderstorms
|
66°F |
5 to 10 mph
SE
|
|
Tonight
Oct 15
|
Showers And Thunderstorms Likely
|
47°F |
5 to 20 mph
W
|
|
Friday
Oct 16
|
Mostly Cloudy then Chance Rain Showers
|
54°F |
15 to 20 mph
NW
|
|
Friday Night
Oct 16
|
Chance Rain Showers then Patchy Frost
|
34°F |
10 to 20 mph
NNW
|
|
Saturday
Oct 17
|
Areas Of Frost then Sunny
|
58°F |
0 to 5 mph
WNW
|
|
Saturday Night
Oct 17
|
Clear
|
38°F |
0 to 5 mph
SSW
|
|
Sunday
Oct 18
|
Sunny
|
66°F |
5 to 10 mph
SSW
|
|
Sunday Night
Oct 18
|
Mostly Clear
|
42°F |
0 to 5 mph
S
|
|
Monday
Oct 19
|
Mostly Sunny
|
69°F |
0 to 5 mph
SSW
|
|
Monday Night
Oct 19
|
Partly Cloudy
|
44°F |
0 mph
|
|
Tuesday
Oct 20
|
Mostly Sunny
|
71°F |
0 mph
|
|
Tuesday Night
Oct 20
|
Mostly Clear
|
47°F |
0 mph
|
|
Wednesday
Oct 21
|
Sunny
|
73°F |
0 to 5 mph
SSE
|
|
Wednesday Night
Oct 21
|
Partly Cloudy
|
51°F |
5 mph
SSE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Marseilles.
