Fillmore, IL Weather Forecast
Local 7-day forecast
Mostly Cloudy then Isolated Rain Showers
Track current conditions, temperature changes, wind, and the full daily outlook for Fillmore, IL in one place.
Isolated rain showers after 1pm. Mostly cloudy, with a high near 77. Southeast wind around 2 mph. Chance of precipitation is 20%.
Local Weather Overview
This forecast page for Fillmore, 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: Jul 23, 2026 9:54 PM CDT.
The active forecast window currently covers Jul 24 to Jul 30, 2026 for Fillmore, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 24 to Jul 30, 2026
- Latest sync
- Jul 23, 2026 9:54 PM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Fillmore
Monday looks like the warmest upcoming period in Fillmore at 95 degrees F.
Friday Night is the coolest period ahead with temperatures near 63 degrees F.
The strongest winds are forecast for Monday at about 6 to 10 mph SW.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 23, 2026 9:54 PM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- LSX
- Radar station
- KILX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Scattered rain showers. Mostly cloudy, with a low around 63. Southeast wind around 3 mph. Chance of precipitation is 50%.
A chance of rain showers before 1pm. Partly sunny, with a high near 84. South wind around 6 mph. Chance of precipitation is 50%.
Partly cloudy, with a low around 69. South wind 0 to 3 mph.
Mostly sunny, with a high near 91.
Mostly clear, with a low around 73.
Sunny, with a high near 95.
Mostly clear, with a low around 74.
Sunny, with a high near 91.
Partly cloudy, with a low around 70.
A slight chance of rain showers between 7am and 1pm. Mostly sunny, with a high near 88. Chance of precipitation is 20%.
Mostly clear, with a low around 68.
Sunny, with a high near 87.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Jul 24
|
Mostly Cloudy then Isolated Rain Showers
|
77°F |
2 mph
SE
|
|
Friday Night
Jul 24
|
Scattered Rain Showers
|
63°F |
3 mph
SE
|
|
Saturday
Jul 25
|
Chance Rain Showers
|
84°F |
6 mph
S
|
|
Saturday Night
Jul 25
|
Partly Cloudy
|
69°F |
0 to 3 mph
S
|
|
Sunday
Jul 26
|
Mostly Sunny
|
91°F |
2 mph
SW
|
|
Sunday Night
Jul 26
|
Mostly Clear
|
73°F |
1 to 5 mph
S
|
|
Monday
Jul 27
|
Sunny
|
95°F |
6 to 10 mph
SW
|
|
Monday Night
Jul 27
|
Mostly Clear
|
74°F |
7 mph
W
|
|
Tuesday
Jul 28
|
Sunny
|
91°F |
5 to 8 mph
NW
|
|
Tuesday Night
Jul 28
|
Partly Cloudy
|
70°F |
2 to 6 mph
NE
|
|
Wednesday
Jul 29
|
Slight Chance Rain Showers
|
88°F |
6 mph
E
|
|
Wednesday Night
Jul 29
|
Mostly Clear
|
68°F |
1 to 5 mph
E
|
|
Thursday
Jul 30
|
Sunny
|
87°F |
5 mph
SE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Fillmore.