10-day forecast for Oswego, IL: 57° to 90°, with precipitation expected on 5 days. The table below breaks each day into morning, afternoon, evening and overnight.
83°
Best day: Wednesday, August 12
85° · 0.21 in
Worst day: Sunday, August 9
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1090° / 71°0.2
Morning76°feels 77°
Afternoon89°feels 102°
Evening76°feels 78°
Overnight76°feels 78°
90 °
Oswego, Monday, 10 August
Rain. High 90°, low 71°.
Pressure29.88 inHg
Wind6.4 mph NW
Humidity80%
Visibility6.2 mi
Dew point76°
Tue, 1181° / 69°0.14
Morning74°feels 75°
Afternoon74°feels 76°
Evening76°feels 78°
Overnight69°feels 71°
81 °
Oswego, Tuesday, 11 August
Rain. High 81°, low 69°.
Pressure29.85 inHg
Wind5.6 mph SW
Humidity77%
Visibility6.2 mi
Dew point71°
Wed, 1283° / 67°0.03
Morning73°feels 75°
Afternoon81°feels 85°
Evening71°feels 72°
Overnight71°feels 72°
83 °
Oswego, Wednesday, 12 August
Light rain. High 83°, low 67°.
Pressure29.85 inHg
Wind5.1 mph W
Humidity75%
Visibility6.2 mi
Dew point72°
Thu, 1376° / 62°0.07
Morning68°feels 68°
Afternoon74°feels 75°
Evening65°feels 66°
Overnight63°feels 63°
76 °
Oswego, Thursday, 13 August
Light rain. High 76°, low 62°.
Pressure30.00 inHg
Wind8.5 mph E
Humidity60%
Visibility—
Dew point60°
Fri, 1475° / 57°0.02
Morning63°feels 63°
Afternoon72°feels 72°
Evening64°feels 64°
Overnight62°feels 61°
75 °
Oswego, Friday, 14 August
Light rain. High 75°, low 57°.
Pressure30.15 inHg
Wind8.9 mph E
Humidity54%
Visibility—
Dew point54°
Sat, 1575° / 60°0.04
Morning64°feels 64°
Afternoon73°feels 73°
Evening69°feels 70°
Overnight66°feels 66°
75 °
Oswego, Saturday, 15 August
Light rain. High 75°, low 60°.
Pressure30.24 inHg
Wind10.3 mph SE
Humidity64%
Visibility—
Dew point58°
Sun, 1676° / 62°0.02
Morning65°feels 66°
Afternoon74°feels 74°
Evening71°feels 73°
Overnight68°feels 69°
76 °
Oswego, Sunday, 16 August
Light rain. High 76°, low 62°.
Pressure30.09 inHg
Wind7 mph SE
Humidity76%
Visibility—
Dew point65°
Mon, 1780° / 64°0.02
Morning69°feels 69°
Afternoon78°feels 79°
Evening74°feels 75°
Overnight66°feels 67°
80 °
Oswego, Monday, 17 August
Light rain. High 80°, low 64°.
Pressure30.09 inHg
Wind7.1 mph E
Humidity71%
Visibility—
Dew point66°
Tue, 1877° / 64°0
Morning66°feels 67°
Afternoon72°feels 73°
Evening74°feels 76°
Overnight69°feels 70°
77 °
Oswego, Tuesday, 18 August
Overcast. High 77°, low 64°.
Pressure30.03 inHg
Wind6.1 mph SE
Humidity89%
Visibility—
Dew point67°
About this forecast
How reliable is a 10-day forecast?
The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.
What does the time-of-day table show?
Temperature in Oswego, IL around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.
How is the best day chosen?
We weigh the daytime high against precipitation: a warm, dry day scores highest.