Thayer, IL Weather Forecast
Local 7-day forecast
Slight Chance Rain Showers
Track current conditions, temperature changes, wind, and the full daily outlook for Thayer, IL in one place.
A slight chance of rain showers before 5am. Mostly cloudy. Low around 61, with temperatures rising to around 65 overnight. East wind around 12 mph. Chance of precipitation is 20%.
Local Weather Overview
This forecast page for Thayer, 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 31, 2026 5:37 AM CDT.
The active forecast window currently covers May 31 to Jun 6, 2026 for Thayer, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- May 31 to Jun 6, 2026
- Latest sync
- May 31, 2026 5:37 AM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Thayer
Friday looks like the warmest upcoming period in Thayer at 86 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 54 degrees F.
The strongest winds are forecast for Friday at about 8 to 13 mph SW.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- May 31, 2026 5:37 AM CDT
- Coverage
- 7 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
A slight chance of rain showers between 11am and noon. Partly sunny, with a high near 81. Southeast wind 7 to 10 mph. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms between 2am and 4am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 60. Southeast wind 3 to 7 mph. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 7am, then a slight chance of showers and thunderstorms between 7am and 8am, then a chance of showers and thunderstorms between 11am and noon, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 83. East wind around 7 mph. Chance of precipitation is 40%.
A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 58. Northeast wind around 7 mph. Chance of precipitation is 20%.
Sunny, with a high near 80.
Clear, with a low around 54.
Sunny, with a high near 80.
Mostly clear, with a low around 55.
Sunny, with a high near 83.
Mostly clear, with a low around 61.
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 86. Chance of precipitation is 50%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
May 31
|
Slight Chance Rain Showers
|
61°F |
12 mph
E
|
|
Sunday
May 31
|
Slight Chance Rain Showers then Partly Sunny
|
81°F |
7 to 10 mph
SE
|
|
Sunday Night
May 31
|
Partly Cloudy then Slight Chance Showers And Thunderstorms
|
60°F |
3 to 7 mph
SE
|
|
Monday
Jun 1
|
Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms
|
83°F |
7 mph
E
|
|
Monday Night
Jun 1
|
Slight Chance Showers And Thunderstorms
|
58°F |
7 mph
NE
|
|
Tuesday
Jun 2
|
Sunny
|
80°F |
7 to 10 mph
NE
|
|
Tuesday Night
Jun 2
|
Clear
|
54°F |
3 to 9 mph
E
|
|
Wednesday
Jun 3
|
Sunny
|
80°F |
7 mph
E
|
|
Wednesday Night
Jun 3
|
Mostly Clear
|
55°F |
6 mph
SE
|
|
Thursday
Jun 4
|
Sunny
|
83°F |
6 to 9 mph
S
|
|
Thursday Night
Jun 4
|
Mostly Clear
|
61°F |
6 to 10 mph
S
|
|
Friday
Jun 5
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
86°F |
8 to 13 mph
SW
|
|
Friday Night
Jun 5
|
Slight Chance Showers And Thunderstorms
|
65°F |
9 mph
S
|
|
Saturday
Jun 6
|
Chance Showers And Thunderstorms
|
86°F |
10 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Thayer.