Sidney, IL Weather Forecast
Local 7-day forecast
Mostly Sunny then Slight Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Sidney, IL in one place.
A slight chance of rain showers between 1pm and 4pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 83. South southeast wind 5 to 21 mph, with gusts as high as 30 mph.
Local Weather Overview
This forecast page for Sidney, 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 16, 2026 6:55 AM CDT.
The active forecast window currently covers Apr 17 to Apr 22, 2026 for Sidney, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 17 to Apr 22, 2026
- Latest sync
- Apr 16, 2026 6:55 AM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Sidney
Friday looks like the warmest upcoming period in Sidney at 83 degrees F.
Sunday Night is the coolest period ahead with temperatures near 36 degrees F.
The strongest winds are forecast for Friday at about 5 to 21 mph SSE.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 16, 2026 6:55 AM 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 slight chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely between 7pm and 10pm, then showers and thunderstorms likely between 10pm and 1am, then showers and thunderstorms. Mostly cloudy. Low around 51, with temperatures rising to around 58 overnight. South southwest wind 15 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Showers and thunderstorms. Partly sunny, with a high near 62. West wind around 20 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
A slight chance of rain showers before 7pm, then patchy frost. Mostly clear, with a low around 37. West northwest wind 9 to 16 mph, with gusts as high as 23 mph. New rainfall amounts less than a tenth of an inch possible.
Patchy frost before 8am. Sunny, with a high near 57.
Mostly clear, with a low around 36.
Sunny, with a high near 63.
Mostly clear, with a low around 48.
Mostly sunny, with a high near 73.
A slight chance of rain showers after 1am. Partly cloudy, with a low around 53.
A slight chance of rain showers before 1pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 75.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Apr 17
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
83°F |
5 to 21 mph
SSE
|
|
Friday Night
Apr 17
|
Showers And Thunderstorms Likely
|
51°F |
15 to 18 mph
SSW
|
|
Saturday
Apr 18
|
Showers And Thunderstorms
|
62°F |
20 mph
W
|
|
Saturday Night
Apr 18
|
Slight Chance Rain Showers then Patchy Frost
|
37°F |
9 to 16 mph
WNW
|
|
Sunday
Apr 19
|
Patchy Frost then Sunny
|
57°F |
9 to 18 mph
WNW
|
|
Sunday Night
Apr 19
|
Mostly Clear
|
36°F |
6 to 14 mph
W
|
|
Monday
Apr 20
|
Sunny
|
63°F |
7 to 12 mph
SSE
|
|
Monday Night
Apr 20
|
Mostly Clear
|
48°F |
12 mph
S
|
|
Tuesday
Apr 21
|
Mostly Sunny
|
73°F |
12 to 18 mph
SW
|
|
Tuesday Night
Apr 21
|
Partly Cloudy then Slight Chance Rain Showers
|
53°F |
10 to 14 mph
SW
|
|
Wednesday
Apr 22
|
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
75°F |
9 to 14 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Sidney.