Pecatonica, IL Weather Forecast
Local 7-day forecast
Mostly Cloudy
Track current conditions, temperature changes, wind, and the full daily outlook for Pecatonica, IL in one place.
Mostly cloudy, with a high near 67. North northeast wind 5 to 10 mph. New rainfall amounts less than a tenth of an inch possible.
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: Oct 13, 2026 11:07 PM CDT.
The active forecast window currently covers Oct 14 to Oct 20, 2026 for Pecatonica, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 14 to Oct 20, 2026
- Latest sync
- Oct 13, 2026 11:07 PM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Pecatonica
Tuesday looks like the warmest upcoming period in Pecatonica at 71 degrees F.
Friday Night is the coolest period ahead with temperatures near 31 degrees F.
The strongest winds are forecast for Friday at about 20 to 25 mph NW.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 13, 2026 11:07 PM CDT
- Coverage
- 7 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
A slight chance of rain showers after 5am. Mostly cloudy, with a low around 52. East northeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Rain showers. Mostly cloudy, with a high near 62. East northeast wind 5 to 10 mph. Chance of precipitation is 90%.
Rain showers before 1am. Mostly cloudy, with a low around 43. North northwest wind 5 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%.
Mostly sunny, with a high near 56.
Areas of frost after 2am. Mostly clear, with a low around 31.
Areas of frost before 9am. Sunny, with a high near 59.
Clear, with a low around 38.
Sunny, with a high near 65.
A slight chance of rain showers after 1am. Partly cloudy, with a low around 45.
A slight chance of rain showers before 1pm. Partly sunny, with a high near 67.
Mostly cloudy, with a low around 46.
Mostly sunny, with a high near 71.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Oct 14
|
Mostly Cloudy
|
67°F |
5 to 10 mph
NNE
|
|
Wednesday Night
Oct 14
|
Mostly Cloudy then Slight Chance Rain Showers
|
52°F |
5 to 10 mph
ENE
|
|
Thursday
Oct 15
|
Rain Showers
|
62°F |
5 to 10 mph
ENE
|
|
Thursday Night
Oct 15
|
Rain Showers
|
43°F |
5 to 20 mph
NNW
|
|
Friday
Oct 16
|
Mostly Sunny
|
56°F |
20 to 25 mph
NW
|
|
Friday Night
Oct 16
|
Mostly Clear then Areas Of Frost
|
31°F |
0 to 15 mph
NNW
|
|
Saturday
Oct 17
|
Areas Of Frost then Sunny
|
59°F |
0 to 10 mph
WSW
|
|
Saturday Night
Oct 17
|
Clear
|
38°F |
10 mph
SSW
|
|
Sunday
Oct 18
|
Sunny
|
65°F |
15 to 20 mph
SSW
|
|
Sunday Night
Oct 18
|
Partly Cloudy then Slight Chance Rain Showers
|
45°F |
5 to 15 mph
SSW
|
|
Monday
Oct 19
|
Slight Chance Rain Showers
|
67°F |
5 mph
SW
|
|
Monday Night
Oct 19
|
Mostly Cloudy
|
46°F |
0 to 5 mph
S
|
|
Tuesday
Oct 20
|
Mostly Sunny
|
71°F |
0 to 10 mph
SE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Pecatonica.
