Griswold, IL Weather Forecast
Local 7-day forecast
Showers And Thunderstorms Likely
Track current conditions, temperature changes, wind, and the full daily outlook for Griswold, IL in one place.
Showers and thunderstorms likely. Mostly cloudy, with a high near 84. East northeast wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 70%.
Local Weather Overview
This forecast page for Griswold, 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: Sep 14, 2026 2:46 PM CDT.
The active forecast window currently covers Sep 16 to Sep 20, 2026 for Griswold, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 16 to Sep 20, 2026
- Latest sync
- Sep 14, 2026 2:46 PM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Griswold
Thursday looks like the warmest upcoming period in Griswold at 86 degrees F.
Sunday Night is the coolest period ahead with temperatures near 60 degrees F.
The strongest winds are forecast for Saturday at about 5 to 10 mph SW.
Precipitation is mentioned in 10 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 14, 2026 2:46 PM CDT
- Coverage
- 5 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
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms. Partly sunny, with a high near 86.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
A slight chance of rain showers. Partly sunny, with a high near 85.
A chance of rain showers. Mostly cloudy, with a low around 66.
A chance of rain showers before 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 83.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
A chance of showers and thunderstorms. Partly sunny, with a high near 79.
A slight chance of rain showers. Mostly cloudy, with a low around 60.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Sep 16
|
Showers And Thunderstorms Likely
|
84°F |
5 mph
ENE
|
|
Wednesday Night
Sep 16
|
Chance Showers And Thunderstorms
|
69°F |
5 mph
ESE
|
|
Thursday
Sep 17
|
Chance Showers And Thunderstorms
|
86°F |
5 mph
W
|
|
Thursday Night
Sep 17
|
Chance Showers And Thunderstorms
|
65°F |
0 to 5 mph
NNE
|
|
Friday
Sep 18
|
Slight Chance Rain Showers
|
85°F |
0 to 5 mph
E
|
|
Friday Night
Sep 18
|
Chance Rain Showers
|
66°F |
5 mph
ESE
|
|
Saturday
Sep 19
|
Chance Rain Showers
|
83°F |
5 to 10 mph
SW
|
|
Saturday Night
Sep 19
|
Chance Showers And Thunderstorms
|
63°F |
5 to 10 mph
N
|
|
Sunday
Sep 20
|
Chance Showers And Thunderstorms
|
79°F |
5 to 10 mph
ENE
|
|
Sunday Night
Sep 20
|
Slight Chance Rain Showers
|
60°F |
5 to 10 mph
E
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Griswold.