Potomac, IL Weather Forecast
Local 7-day forecast
Mostly Cloudy
Track current conditions, temperature changes, wind, and the full daily outlook for Potomac, IL in one place.
Mostly cloudy, with a high near 79. East northeast wind 3 to 12 mph, with gusts as high as 17 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: May 28, 2026 6:49 PM CDT.
The active forecast window currently covers May 30 to Jun 3, 2026 for Potomac, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- May 30 to Jun 3, 2026
- Latest sync
- May 28, 2026 6:49 PM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Potomac
Monday looks like the warmest upcoming period in Potomac at 82 degrees F.
Saturday Night is the coolest period ahead with temperatures near 53 degrees F.
The strongest winds are forecast for Saturday at about 3 to 12 mph ENE.
The forecast from May 30 through Jun 3 stays mostly dry.
Forecast Details
- Last updated
- May 28, 2026 6:49 PM CDT
- Coverage
- 5 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 cloudy, with a low around 53. East wind 7 to 12 mph, with gusts as high as 17 mph.
Mostly sunny, with a high near 78. East wind 3 to 7 mph.
Partly cloudy, with a low around 56.
Mostly sunny, with a high near 82.
Mostly clear, with a low around 56.
Sunny, with a high near 81.
Mostly clear, with a low around 54.
Sunny, with a high near 79.
Mostly clear, with a low around 56.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
May 30
|
Mostly Cloudy
|
79°F |
3 to 12 mph
ENE
|
|
Saturday Night
May 30
|
Mostly Cloudy
|
53°F |
7 to 12 mph
E
|
|
Sunday
May 31
|
Mostly Sunny
|
78°F |
3 to 7 mph
E
|
|
Sunday Night
May 31
|
Partly Cloudy
|
56°F |
2 mph
E
|
|
Monday
Jun 1
|
Mostly Sunny
|
82°F |
1 to 6 mph
NNE
|
|
Monday Night
Jun 1
|
Mostly Clear
|
56°F |
6 mph
NE
|
|
Tuesday
Jun 2
|
Sunny
|
81°F |
5 to 9 mph
ENE
|
|
Tuesday Night
Jun 2
|
Mostly Clear
|
54°F |
5 to 8 mph
ENE
|
|
Wednesday
Jun 3
|
Sunny
|
79°F |
5 to 8 mph
ESE
|
|
Wednesday Night
Jun 3
|
Mostly Clear
|
56°F |
2 to 7 mph
SE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Potomac.
