Pecatonica, IL Weather Forecast
Local 7-day forecast
Partly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Pecatonica, IL in one place.
Partly sunny. High near 66, with temperatures falling to around 64 in the afternoon. Northeast wind 5 to 15 mph.
Local Weather Overview
This forecast page for Pecatonica, 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: Sep 22, 2026 11:09 AM CDT.
The active forecast window currently covers Sep 23 to Sep 28, 2026 for Pecatonica, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 23 to Sep 28, 2026
- Latest sync
- Sep 22, 2026 11:09 AM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Pecatonica
Monday looks like the warmest upcoming period in Pecatonica at 72 degrees F.
Friday Night is the coolest period ahead with temperatures near 46 degrees F.
The strongest winds are forecast for Wednesday at about 5 to 15 mph NE.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 22, 2026 11:09 AM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- LOT
- Radar station
- KMKX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly cloudy, with a low around 48. East northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Partly sunny, with a high near 65. East northeast wind around 5 mph, with gusts as high as 15 mph.
Mostly cloudy, with a low around 48.
Partly sunny, with a high near 66.
Mostly cloudy, with a low around 46.
Partly sunny, with a high near 65.
A slight chance of rain showers after 1am. Mostly cloudy, with a low around 49.
A slight chance of rain showers before 7am. Mostly cloudy, with a high near 68.
Mostly cloudy, with a low around 52.
Mostly sunny, with a high near 72.
A slight chance of rain showers after 1am. Partly cloudy, with a low around 56.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Sep 23
|
Partly Sunny
|
66°F |
5 to 15 mph
NE
|
|
Wednesday Night
Sep 23
|
Partly Cloudy
|
48°F |
5 to 10 mph
ENE
|
|
Thursday
Sep 24
|
Partly Sunny
|
65°F |
5 mph
ENE
|
|
Thursday Night
Sep 24
|
Mostly Cloudy
|
48°F |
0 to 5 mph
ENE
|
|
Friday
Sep 25
|
Partly Sunny
|
66°F |
0 to 5 mph
E
|
|
Friday Night
Sep 25
|
Mostly Cloudy
|
46°F |
0 to 5 mph
E
|
|
Saturday
Sep 26
|
Partly Sunny
|
65°F |
0 to 5 mph
SE
|
|
Saturday Night
Sep 26
|
Mostly Cloudy then Slight Chance Rain Showers
|
49°F |
0 to 5 mph
SE
|
|
Sunday
Sep 27
|
Slight Chance Rain Showers then Mostly Cloudy
|
68°F |
0 to 5 mph
SSE
|
|
Sunday Night
Sep 27
|
Mostly Cloudy
|
52°F |
0 to 5 mph
SE
|
|
Monday
Sep 28
|
Mostly Sunny
|
72°F |
0 to 5 mph
SSE
|
|
Monday Night
Sep 28
|
Partly Cloudy then Slight Chance Rain Showers
|
56°F |
5 mph
SSE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Pecatonica.
