10-day forecast for Sycamore, IL: 37° to 80°, with precipitation expected on 5 days. The table below breaks each day into morning, afternoon, evening and overnight.
80°
Best day: Tuesday, October 13
63° · 0.83 in
Worst day: Thursday, October 15
Tap any day below to see morning, afternoon, evening and overnight.
Wed, 1475° / 58°0.04
Morning59°feels 60°
Afternoon73°feels 73°
Evening61°feels 60°
Overnight63°feels 64°
75 °
Sycamore, Wednesday, 14 October
Light rain. High 75°, low 58°.
Pressure30.09 inHg
Wind7.4 mph NE
Humidity59%
Visibility6.2 mi
Dew point55°
Thu, 1563° / 56°0.83
Morning57°feels 56°
Afternoon61°feels 61°
Evening59°feels 59°
Overnight57°feels 56°
63 °
Sycamore, Thursday, 15 October
Rain. High 63°, low 56°.
Pressure30.03 inHg
Wind9 mph E
Humidity94%
Visibility2.6 mi
Dew point56°
Fri, 1656° / 46°0.02
Morning46°feels 39°
Afternoon55°feels 53°
Evening49°feels 44°
Overnight54°feels 53°
56 °
Sycamore, Friday, 16 October
Light rain. High 56°, low 46°.
Pressure30.15 inHg
Wind23.5 mph NW
Humidity60%
Visibility6.2 mi
Dew point39°
Sat, 1757° / 37°0
Morning42°feels 42°
Afternoon55°feels 52°
Evening49°feels 46°
Overnight41°feels 37°
57 °
Sycamore, Saturday, 17 October
Clear. High 57°, low 37°.
Pressure30.47 inHg
Wind11.2 mph SW
Humidity39%
Visibility—
Dew point29°
Sun, 1862° / 45°0
Morning50°feels 45°
Afternoon60°feels 59°
Evening55°feels 53°
Overnight52°feels 49°
62 °
Sycamore, Sunday, 18 October
Overcast. High 62°, low 45°.
Pressure30.24 inHg
Wind14.6 mph SW
Humidity49%
Visibility—
Dew point40°
Mon, 1954° / 49°0.11
Morning51°feels 49°
Afternoon53°feels 51°
Evening49°feels 48°
Overnight49°feels 48°
54 °
Sycamore, Monday, 19 October
Light rain. High 54°, low 49°.
Pressure30.24 inHg
Wind8.9 mph SW
Humidity66%
Visibility—
Dew point42°
Tue, 2063° / 50°0.04
Morning54°feels 54°
Afternoon61°feels 61°
Evening60°feels 60°
Overnight58°feels 58°
63 °
Sycamore, Tuesday, 20 October
Light rain. High 63°, low 50°.
Pressure30.24 inHg
Wind9.4 mph SE
Humidity89%
Visibility—
Dew point56°
Wed, 2172° / 57°0
Morning61°feels 61°
Afternoon69°feels 69°
Evening64°feels 64°
Overnight62°feels 62°
72 °
Sycamore, Wednesday, 21 October
Partly cloudy. High 72°, low 57°.
Pressure30.21 inHg
Wind12.7 mph S
Humidity70%
Visibility—
Dew point58°
Thu, 2267° / 61°0.11
Morning63°feels 63°
Afternoon67°feels 67°
Evening67°feels 67°
Overnight66°feels 66°
67 °
Sycamore, Thursday, 22 October
Light rain. High 67°, low 61°.
Pressure30.03 inHg
Wind18.8 mph S
Humidity76%
Visibility—
Dew point58°
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 Sycamore, 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.