10-day forecast for Sullivan, IL: 29° to 68°, with precipitation expected on 0 days. The table below breaks each day into morning, afternoon, evening and overnight.
68°
Best day: Saturday, November 21
42°
Worst day: Friday, November 13
Tap any day below to see morning, afternoon, evening and overnight.
Sat, 1447° / 30°0
Morning34°feels 28°
Afternoon47°feels 45°
Evening36°feels 33°
Overnight32°feels 26°
47 °
Sullivan, Saturday, 14 November
Clear. High 47°, low 30°.
Pressure30.30 inHg
Wind4.4 mph NW
Humidity56%
Visibility6.2 mi
Dew point29°
Sun, 1549° / 29°0
Morning34°feels 34°
Afternoon49°feels 49°
Evening37°feels 37°
Overnight31°feels 31°
49 °
Sullivan, Sunday, 15 November
Partly cloudy. High 49°, low 29°.
Pressure30.47 inHg
Wind2.6 mph NW
Humidity52%
Visibility6.2 mi
Dew point28°
Mon, 1652° / 32°0
Morning37°feels 34°
Afternoon52°feels 49°
Evening40°feels 37°
Overnight33°feels 33°
52 °
Sullivan, Monday, 16 November
Clear. High 52°, low 32°.
Pressure30.53 inHg
Wind3.2 mph S
Humidity51%
Visibility6.2 mi
Dew point34°
Tue, 1752° / 33°0
Morning38°feels 35°
Afternoon50°feels 47°
Evening42°feels 39°
Overnight35°feels 33°
52 °
Sullivan, Tuesday, 17 November
Clear. High 52°, low 33°.
Pressure30.50 inHg
Wind5.8 mph S
Humidity49%
Visibility—
Dew point31°
Wed, 1859° / 37°0
Morning43°feels 39°
Afternoon56°feels 54°
Evening50°feels 46°
Overnight46°feels 42°
59 °
Sullivan, Wednesday, 18 November
Mostly clear. High 59°, low 37°.
Pressure30.36 inHg
Wind10 mph S
Humidity46%
Visibility—
Dew point34°
Thu, 1958° / 47°0
Morning50°feels 46°
Afternoon56°feels 55°
Evening52°feels 50°
Overnight50°feels 48°
58 °
Sullivan, Thursday, 19 November
Overcast. High 58°, low 47°.
Pressure30.30 inHg
Wind11.9 mph SW
Humidity53%
Visibility—
Dew point39°
Fri, 2065° / 50°0
Morning55°feels 54°
Afternoon62°feels 61°
Evening56°feels 55°
Overnight54°feels 53°
65 °
Sullivan, Friday, 20 November
Overcast. High 65°, low 50°.
Pressure30.36 inHg
Wind7.2 mph E
Humidity58%
Visibility—
Dew point47°
Sat, 2168° / 50°0
Morning55°feels 53°
Afternoon65°feels 64°
Evening59°feels 57°
Overnight55°feels 53°
68 °
Sullivan, Saturday, 21 November
Mostly clear. High 68°, low 50°.
Pressure30.21 inHg
Wind12.4 mph SW
Humidity42%
Visibility—
Dew point41°
Sun, 2267° / 53°0
Morning56°feels 55°
Afternoon64°feels 62°
Evening59°feels 56°
Overnight57°feels 54°
67 °
Sullivan, Sunday, 22 November
Overcast. High 67°, low 53°.
Pressure30.03 inHg
Wind17.1 mph S
Humidity42%
Visibility—
Dew point40°
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 Sullivan, 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.