Potomac, IL Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Potomac, IL in one place.
Sunny. High near 61, with temperatures falling to around 55 in the afternoon. West wind 0 to 5 mph.
Local Weather Overview
This forecast page for Potomac, 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: Nov 8, 2026 3:19 AM CST.
The active forecast window currently covers Nov 9 to Nov 14, 2026 for Potomac, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Nov 9 to Nov 14, 2026
- Latest sync
- Nov 8, 2026 3:19 AM CST
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Potomac
Tuesday looks like the warmest upcoming period in Potomac at 66 degrees F.
Thursday Night is the coolest period ahead with temperatures near 30 degrees F.
The strongest winds are forecast for Thursday at about 7 to 13 mph N.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Nov 8, 2026 3:19 AM CST
- 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
Mostly clear, with a low around 41. West southwest wind around 5 mph.
Sunny, with a high near 66. West northwest wind around 3 mph.
Partly cloudy, with a low around 38. North northwest wind around 1 mph.
A chance of rain after noon. Partly sunny, with a high near 61. Chance of precipitation is 30%.
A slight chance of rain. Mostly cloudy, with a low around 37.
A slight chance of rain before noon. Partly sunny, with a high near 50.
Partly cloudy, with a low around 30.
Mostly sunny, with a high near 47.
Partly cloudy, with a low around 30.
Sunny, with a high near 53.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Monday
Nov 9
|
Sunny
|
61°F |
0 to 5 mph
W
|
|
Monday Night
Nov 9
|
Mostly Clear
|
41°F |
5 mph
WSW
|
|
Tuesday
Nov 10
|
Sunny
|
66°F |
3 mph
WNW
|
|
Tuesday Night
Nov 10
|
Partly Cloudy
|
38°F |
1 mph
NNW
|
|
Veterans Day
Nov 11
|
Partly Sunny then Chance Light Rain
|
61°F |
0 to 5 mph
NNE
|
|
Wednesday Night
Nov 11
|
Slight Chance Light Rain
|
37°F |
7 mph
N
|
|
Thursday
Nov 12
|
Slight Chance Light Rain then Partly Sunny
|
50°F |
7 to 13 mph
N
|
|
Thursday Night
Nov 12
|
Partly Cloudy
|
30°F |
5 to 9 mph
N
|
|
Friday
Nov 13
|
Mostly Sunny
|
47°F |
3 to 7 mph
NNW
|
|
Friday Night
Nov 13
|
Partly Cloudy
|
30°F |
2 mph
NNW
|
|
Saturday
Nov 14
|
Sunny
|
53°F |
2 to 6 mph
NW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Potomac.
