Somonauk, IL Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Somonauk, IL in one place.
Mostly sunny, with a high near 78. Southeast wind 5 to 10 mph.
Local Weather Overview
This forecast page for Somonauk, 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 30, 2026 7:55 PM CDT.
The active forecast window currently covers May 31 to Jun 5, 2026 for Somonauk, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- May 31 to Jun 5, 2026
- Latest sync
- May 30, 2026 7:55 PM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Somonauk
Friday looks like the warmest upcoming period in Somonauk at 87 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 52 degrees F.
The strongest winds are forecast for Thursday at about 5 to 15 mph SSW.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- May 30, 2026 7:55 PM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- LOT
- Radar station
- KLOT
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 56. East wind 0 to 5 mph.
Mostly sunny, with a high near 80. East northeast wind 0 to 5 mph.
Mostly clear, with a low around 54.
Sunny, with a high near 80.
Clear, with a low around 52.
Sunny, with a high near 84.
Mostly clear, with a low around 57.
Mostly sunny, with a high near 86.
A slight chance of showers and thunderstorms after 7pm. Partly cloudy, with a low around 63.
A chance of rain showers before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 87.
A chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Sunday
May 31
|
Mostly Sunny
|
78°F |
5 to 10 mph
SE
|
|
Sunday Night
May 31
|
Mostly Cloudy
|
56°F |
0 to 5 mph
E
|
|
Monday
Jun 1
|
Mostly Sunny
|
80°F |
0 to 5 mph
ENE
|
|
Monday Night
Jun 1
|
Mostly Clear
|
54°F |
5 to 10 mph
NE
|
|
Tuesday
Jun 2
|
Sunny
|
80°F |
5 to 10 mph
NE
|
|
Tuesday Night
Jun 2
|
Clear
|
52°F |
0 to 10 mph
ENE
|
|
Wednesday
Jun 3
|
Sunny
|
84°F |
0 to 5 mph
SE
|
|
Wednesday Night
Jun 3
|
Mostly Clear
|
57°F |
5 mph
SSE
|
|
Thursday
Jun 4
|
Mostly Sunny
|
86°F |
5 to 15 mph
SSW
|
|
Thursday Night
Jun 4
|
Slight Chance Showers And Thunderstorms
|
63°F |
10 mph
SW
|
|
Friday
Jun 5
|
Chance Rain Showers then Chance Showers And Thunderstorms
|
87°F |
10 to 15 mph
SW
|
|
Friday Night
Jun 5
|
Chance Showers And Thunderstorms
|
64°F |
10 to 15 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Somonauk.