Geneseo, IL Weather Forecast
Local 7-day forecast
Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Geneseo, IL in one place.
Showers and thunderstorms after 3am. Mostly cloudy. Low around 64, with temperatures rising to around 66 overnight. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Local Weather Overview
This forecast page for Geneseo, 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: Apr 15, 2026 3:41 AM CDT.
The active forecast window currently covers Apr 15 to Apr 21, 2026 for Geneseo, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 15 to Apr 21, 2026
- Latest sync
- Apr 15, 2026 3:41 AM CDT
- Forecast office
- DVN
- Source
- NOAA / NWS
Daily Outlook
This Week in Geneseo
Friday looks like the warmest upcoming period in Geneseo at 82 degrees F.
Saturday Night is the coolest period ahead with temperatures near 35 degrees F.
The strongest winds are forecast for Friday at about 10 to 20 mph S.
Precipitation is mentioned in 9 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 15, 2026 3:41 AM CDT
- Coverage
- 7 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. High near 76, with temperatures falling to around 72 in the afternoon. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Showers and thunderstorms likely before 3am. Mostly cloudy. Low around 59, with temperatures rising to around 61 overnight. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between three quarters and one inch possible.
A chance of rain showers after 7am. Mostly sunny, with a high near 74. West wind 10 to 15 mph. Chance of precipitation is 40%.
A chance of rain showers before 7pm. Mostly clear, with a low around 56. Chance of precipitation is 30%.
A chance of rain showers between 1pm and 4pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 82. Chance of precipitation is 40%.
Showers and thunderstorms. Mostly cloudy, with a low around 45. Chance of precipitation is 90%.
Showers and thunderstorms likely. Partly sunny, with a high near 56. Chance of precipitation is 70%.
A chance of rain showers before 1am. Partly cloudy, with a low around 35. Chance of precipitation is 30%.
Sunny, with a high near 54.
Mostly clear, with a low around 36.
Sunny, with a high near 65.
Mostly clear, with a low around 49.
Sunny, with a high near 72.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Apr 15
|
Showers And Thunderstorms
|
64°F |
10 to 15 mph
SW
|
|
Wednesday
Apr 15
|
Showers And Thunderstorms Likely
|
76°F |
10 to 15 mph
SW
|
|
Wednesday Night
Apr 15
|
Showers And Thunderstorms Likely
|
59°F |
10 to 15 mph
SW
|
|
Thursday
Apr 16
|
Chance Rain Showers
|
74°F |
10 to 15 mph
W
|
|
Thursday Night
Apr 16
|
Chance Rain Showers then Mostly Clear
|
56°F |
5 mph
SW
|
|
Friday
Apr 17
|
Mostly Sunny then Chance Showers And Thunderstorms
|
82°F |
10 to 20 mph
S
|
|
Friday Night
Apr 17
|
Showers And Thunderstorms
|
45°F |
15 mph
S
|
|
Saturday
Apr 18
|
Showers And Thunderstorms Likely
|
56°F |
15 to 20 mph
W
|
|
Saturday Night
Apr 18
|
Chance Rain Showers
|
35°F |
15 to 20 mph
W
|
|
Sunday
Apr 19
|
Sunny
|
54°F |
15 mph
NW
|
|
Sunday Night
Apr 19
|
Mostly Clear
|
36°F |
5 to 10 mph
SW
|
|
Monday
Apr 20
|
Sunny
|
65°F |
10 to 15 mph
S
|
|
Monday Night
Apr 20
|
Mostly Clear
|
49°F |
10 to 15 mph
S
|
|
Tuesday
Apr 21
|
Sunny
|
72°F |
15 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Geneseo.