Griffin, IL Weather Forecast
Local 7-day forecast
Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Griffin, IL in one place.
Showers and thunderstorms. Mostly cloudy, with a high near 78. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Local Weather Overview
This forecast page for Griffin, 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 Griffin, 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
- DVN
- Source
- NOAA / NWS
Daily Outlook
This Week in Griffin
Thursday looks like the warmest upcoming period in Griffin at 81 degrees F.
Sunday Night is the coolest period ahead with temperatures near 60 degrees F.
The strongest winds are forecast for Saturday at about 10 to 15 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
- DVN
- Radar station
- KDVN
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Showers and thunderstorms likely. Mostly cloudy, with a low around 68. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Showers and thunderstorms likely before 1pm. Mostly cloudy, with a high near 81. Chance of precipitation is 60%.
A chance of rain showers after 7pm. Mostly cloudy, with a low around 66. Chance of precipitation is 40%.
A chance of rain showers before 7am, then a chance of showers and thunderstorms. Partly sunny, with a high near 81. Chance of precipitation is 50%.
A chance of rain showers. Partly cloudy, with a low around 66. Chance of precipitation is 50%.
Rain showers likely. Partly sunny, with a high near 79. Chance of precipitation is 60%.
A chance of rain showers before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Chance of precipitation is 50%.
A chance of showers and thunderstorms. Partly sunny, with a high near 76. Chance of precipitation is 40%.
A chance of rain showers. Mostly cloudy, with a low around 60. Chance of precipitation is 30%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Sep 16
|
Showers And Thunderstorms
|
78°F |
5 to 10 mph
E
|
|
Wednesday Night
Sep 16
|
Showers And Thunderstorms Likely
|
68°F |
5 mph
SE
|
|
Thursday
Sep 17
|
Showers And Thunderstorms Likely
|
81°F |
5 mph
NW
|
|
Thursday Night
Sep 17
|
Chance Rain Showers
|
66°F |
5 mph
NE
|
|
Friday
Sep 18
|
Chance Showers And Thunderstorms
|
81°F |
5 to 10 mph
SE
|
|
Friday Night
Sep 18
|
Chance Rain Showers
|
66°F |
10 mph
S
|
|
Saturday
Sep 19
|
Rain Showers Likely
|
79°F |
10 to 15 mph
SW
|
|
Saturday Night
Sep 19
|
Chance Showers And Thunderstorms
|
63°F |
10 mph
N
|
|
Sunday
Sep 20
|
Chance Showers And Thunderstorms
|
76°F |
10 mph
NE
|
|
Sunday Night
Sep 20
|
Chance Rain Showers
|
60°F |
5 to 10 mph
E
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Griffin.