10-day forecast for Sullivan, IL: 34° to 66°, with precipitation expected on 1 day. The table below breaks each day into morning, afternoon, evening and overnight.
66°
Best day: Thursday, November 5
63° · 0.43 in
Worst day: Wednesday, November 4
Tap any day below to see morning, afternoon, evening and overnight.
Thu, 0566° / 49°0
Morning51°feels 50°
Afternoon65°feels 63°
Evening54°feels 53°
Overnight53°feels 52°
66 °
Sullivan, Thursday, 5 November
Overcast. High 66°, low 49°.
Pressure29.83 inHg
Wind13.4 mph W
Humidity57%
Visibility6.2 mi
Dew point44°
Fri, 0656° / 39°0
Morning48°feels 43°
Afternoon51°feels 48°
Evening41°feels 37°
Overnight51°feels 50°
56 °
Sullivan, Friday, 6 November
Light rain. High 56°, low 39°.
Pressure30.15 inHg
Wind11.1 mph N
Humidity49%
Visibility6.2 mi
Dew point33°
Sat, 0751° / 34°0
Morning39°feels 37°
Afternoon51°feels 48°
Evening40°feels 38°
Overnight37°feels 33°
51 °
Sullivan, Saturday, 7 November
Partly cloudy. High 51°, low 34°.
Pressure30.27 inHg
Wind3.9 mph NW
Humidity49%
Visibility6.2 mi
Dew point32°
Sun, 0860° / 37°0
Morning44°feels 39°
Afternoon60°feels 58°
Evening50°feels 47°
Overnight37°feels 33°
60 °
Sullivan, Sunday, 8 November
Overcast. High 60°, low 37°.
Pressure30.15 inHg
Wind10.3 mph W
Humidity55%
Visibility6.2 mi
Dew point43°
Mon, 0963° / 40°0
Morning46°feels 46°
Afternoon60°feels 58°
Evening54°feels 53°
Overnight50°feels 49°
63 °
Sullivan, Monday, 9 November
Clear. High 63°, low 40°.
Pressure30.18 inHg
Wind6.9 mph SW
Humidity53%
Visibility—
Dew point41°
Tue, 1062° / 46°0
Morning50°feels 47°
Afternoon60°feels 58°
Evening53°feels 50°
Overnight49°feels 47°
62 °
Sullivan, Tuesday, 10 November
Clear. High 62°, low 46°.
Pressure30.06 inHg
Wind8.4 mph W
Humidity50%
Visibility—
Dew point40°
Wed, 1156° / 42°0
Morning46°feels 42°
Afternoon54°feels 51°
Evening46°feels 42°
Overnight42°feels 38°
56 °
Sullivan, Wednesday, 11 November
Partly cloudy. High 56°, low 42°.
Pressure30.15 inHg
Wind11.5 mph N
Humidity34%
Visibility—
Dew point26°
Thu, 1250° / 36°0
Morning40°feels 34°
Afternoon48°feels 44°
Evening41°feels 37°
Overnight38°feels 33°
50 °
Sullivan, Thursday, 12 November
Clear. High 50°, low 36°.
Pressure30.18 inHg
Wind12.9 mph N
Humidity30%
Visibility—
Dew point18°
Fri, 1356° / 34°0
Morning39°feels 35°
Afternoon51°feels 48°
Evening47°feels 43°
Overnight42°feels 37°
56 °
Sullivan, Friday, 13 November
Overcast. High 56°, low 34°.
Pressure30.09 inHg
Wind9.5 mph W
Humidity42%
Visibility—
Dew point27°
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.