Basco, IL Weather Forecast
Local 7-day forecast
Mostly Sunny then Slight Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Basco, IL in one place.
A slight chance of showers and thunderstorms after 4pm. Mostly sunny. High near 91, with temperatures falling to around 89 in the afternoon. Heat index values as high as 100. South wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Local Weather Overview
This forecast page for Basco, 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: Aug 8, 2026 10:30 AM CDT.
The active forecast window currently covers Aug 9 to Aug 14, 2026 for Basco, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 9 to Aug 14, 2026
- Latest sync
- Aug 8, 2026 10:30 AM CDT
- Forecast office
- DVN
- Source
- NOAA / NWS
Daily Outlook
This Week in Basco
Monday looks like the warmest upcoming period in Basco at 92 degrees F.
Thursday Night is the coolest period ahead with temperatures near 65 degrees F.
The strongest winds are forecast for Sunday at about 5 to 15 mph S.
Precipitation is mentioned in 11 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 8, 2026 10:30 AM CDT
- Coverage
- 6 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
A chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 75. Heat index values as high as 102. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New rainfall amounts between a quarter and half of an inch possible.
Mostly sunny, with a high near 92.
A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 75. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 90. Chance of precipitation is 40%.
A slight chance of showers and thunderstorms between 7pm and 1am, then showers and thunderstorms likely. Partly cloudy, with a low around 72. Chance of precipitation is 60%.
Showers and thunderstorms likely before 1pm, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 87. Chance of precipitation is 60%.
A slight chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely. Partly cloudy, with a low around 68. Chance of precipitation is 60%.
Showers and thunderstorms likely. Mostly cloudy, with a high near 80. Chance of precipitation is 60%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 79. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 1am, then showers and thunderstorms likely. Mostly cloudy, with a low around 65. Chance of precipitation is 60%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Sunday
Aug 9
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
91°F |
5 to 15 mph
S
|
|
Sunday Night
Aug 9
|
Chance Showers And Thunderstorms
|
75°F |
10 mph
S
|
|
Monday
Aug 10
|
Mostly Sunny
|
92°F |
5 to 15 mph
SW
|
|
Monday Night
Aug 10
|
Partly Cloudy then Chance Showers And Thunderstorms
|
75°F |
10 mph
S
|
|
Tuesday
Aug 11
|
Chance Showers And Thunderstorms
|
90°F |
10 mph
SW
|
|
Tuesday Night
Aug 11
|
Slight Chance Showers And Thunderstorms
|
72°F |
5 mph
S
|
|
Wednesday
Aug 12
|
Showers And Thunderstorms Likely
|
87°F |
5 to 10 mph
W
|
|
Wednesday Night
Aug 12
|
Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
68°F |
5 mph
NE
|
|
Thursday
Aug 13
|
Showers And Thunderstorms Likely
|
80°F |
5 mph
E
|
|
Thursday Night
Aug 13
|
Chance Showers And Thunderstorms
|
65°F |
5 mph
E
|
|
Friday
Aug 14
|
Chance Showers And Thunderstorms
|
79°F |
5 to 10 mph
E
|
|
Friday Night
Aug 14
|
Chance Showers And Thunderstorms
|
65°F |
10 mph
E
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Basco.