10-day forecast for Summum, IL: 44° to 75°, with precipitation expected on 1 day. The table below breaks each day into morning, afternoon, evening and overnight.
75°
Best day: Monday, October 26
58° · 0.08 in
Worst day: Monday, November 2
Tap any day below to see morning, afternoon, evening and overnight.
Tue, 2773° / 50°0
Morning53°feels 52°
Afternoon70°feels 69°
Evening61°feels 60°
Overnight53°feels 52°
73 °
Summum, Tuesday, 27 October
Overcast. High 73°, low 50°.
Pressure30.21 inHg
Wind6.6 mph S
Humidity58%
Visibility6.2 mi
Dew point52°
Wed, 2872° / 54°0.01
Morning54°feels 53°
Afternoon72°feels 71°
Evening63°feels 62°
Overnight57°feels 56°
72 °
Summum, Wednesday, 28 October
Light rain. High 72°, low 54°.
Pressure30.18 inHg
Wind6.3 mph S
Humidity61%
Visibility6.2 mi
Dew point53°
Thu, 2974° / 58°0.02
Morning60°feels 60°
Afternoon74°feels 74°
Evening65°feels 65°
Overnight60°feels 59°
74 °
Summum, Thursday, 29 October
Light rain. High 74°, low 58°.
Pressure30.09 inHg
Wind8.1 mph SW
Humidity60%
Visibility6.2 mi
Dew point56°
Fri, 3074° / 57°0.03
Morning61°feels 61°
Afternoon70°feels 71°
Evening66°feels 66°
Overnight62°feels 63°
74 °
Summum, Friday, 30 October
Light rain. High 74°, low 57°.
Pressure30.15 inHg
Wind7.2 mph SE
Humidity73%
Visibility—
Dew point60°
Sat, 3166° / 56°0.01
Morning63°feels 62°
Afternoon65°feels 64°
Evening58°feels 57°
Overnight57°feels 55°
66 °
Summum, Saturday, 31 October
Light rain. High 66°, low 56°.
Pressure30.15 inHg
Wind7.1 mph NE
Humidity63%
Visibility—
Dew point52°
Sun, 0162° / 53°0.03
Morning55°feels 54°
Afternoon61°feels 60°
Evening57°feels 56°
Overnight56°feels 55°
62 °
Summum, Sunday, 1 November
Light rain. High 62°, low 53°.
Pressure30.03 inHg
Wind7.3 mph E
Humidity60%
Visibility—
Dew point46°
Mon, 0258° / 54°0.08
Morning55°feels 54°
Afternoon56°feels 55°
Evening54°feels 53°
Overnight54°feels 53°
58 °
Summum, Monday, 2 November
Light rain. High 58°, low 54°.
Pressure29.91 inHg
Wind8.5 mph N
Humidity84%
Visibility—
Dew point51°
Tue, 0364° / 47°0
Morning52°feels 50°
Afternoon64°feels 62°
Evening58°feels 57°
Overnight54°feels 53°
64 °
Summum, Tuesday, 3 November
Partly cloudy. High 64°, low 47°.
Pressure30.06 inHg
Wind6.4 mph NW
Humidity40%
Visibility—
Dew point37°
Wed, 0457° / 44°0
Morning48°feels 44°
Afternoon56°feels 53°
Evening49°feels 44°
Overnight46°feels 40°
57 °
Summum, Wednesday, 4 November
Overcast. High 57°, low 44°.
Pressure30.27 inHg
Wind14.6 mph NE
Humidity49%
Visibility—
Dew point36°
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 Summum, 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.