Cissna Park, IL Weather Forecast
Local 7-day forecast
Slight Chance Showers And Thunderstorms then Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Cissna Park, IL in one place.
A slight chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 77. West southwest wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 20%.
Local Weather Overview
This forecast page for Cissna Park, 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 10:05 AM CDT.
The active forecast window currently covers Apr 22 to Apr 26, 2026 for Cissna Park, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 22 to Apr 26, 2026
- Latest sync
- Apr 20, 2026 10:05 AM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Cissna Park
Thursday looks like the warmest upcoming period in Cissna Park 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 5 to 20 mph S.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 20, 2026 10:05 AM CDT
- Coverage
- 5 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
Mostly clear, with a low around 56.
Mostly sunny, with a high near 81.
A chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 61.
Showers and thunderstorms likely. Mostly cloudy, with a high near 75.
Showers and thunderstorms likely. Mostly cloudy, with a low around 49.
A chance of showers and thunderstorms. Mostly sunny, with a high near 69.
A slight chance of rain showers. Partly cloudy, with a low around 46.
A slight chance of rain showers. Mostly sunny, with a high near 69.
A chance of rain showers. Partly cloudy, with a low around 50.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Apr 22
|
Slight Chance Showers And Thunderstorms then Mostly Sunny
|
77°F |
5 mph
WSW
|
|
Wednesday Night
Apr 22
|
Mostly Clear
|
56°F |
5 mph
S
|
|
Thursday
Apr 23
|
Mostly Sunny
|
81°F |
5 to 20 mph
S
|
|
Thursday Night
Apr 23
|
Mostly Cloudy then Chance Showers And Thunderstorms
|
61°F |
15 mph
S
|
|
Friday
Apr 24
|
Showers And Thunderstorms Likely
|
75°F |
10 to 15 mph
SW
|
|
Friday Night
Apr 24
|
Showers And Thunderstorms Likely
|
49°F |
5 to 10 mph
WNW
|
|
Saturday
Apr 25
|
Chance Showers And Thunderstorms
|
69°F |
10 mph
N
|
|
Saturday Night
Apr 25
|
Slight Chance Rain Showers
|
46°F |
5 to 10 mph
NNE
|
|
Sunday
Apr 26
|
Slight Chance Rain Showers
|
69°F |
5 to 10 mph
NNE
|
|
Sunday Night
Apr 26
|
Chance Rain Showers
|
50°F |
5 to 10 mph
ENE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Cissna Park.