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As of 22:17 CDT

Weather in Summum, IL

71°Current weather

Summum, Saturday, 8 August, 22:17

Clear. Feels like 71°. High 86°, low 70°.

Pressure30.03 inHg
Wind5.8 mph E
Humidity77%
Visibility6.2 mi
Dew point64°

10-day forecast for Summum, IL: 63° to 100°, with precipitation expected on 4 days. The table below breaks each day into morning, afternoon, evening and overnight.

98°
Best day: Monday, August 10
82° · 0.81 in
Worst day: Thursday, August 13

Tap any day below to see morning, afternoon, evening and overnight.

Sun, 0996° / 69°0Clear
MorningClear75°feels 76°
AfternoonClear93°feels 96°
EveningClear85°feels 89°
OvernightOvercast72°feels 74°
96 °Clear

Summum, Sunday, 9 August

Clear. High 96°, low 69°.

Pressure29.88 inHg
Wind13.6 mph S
Humidity48%
Visibility6.2 mi
Dew point70°
Mon, 1098° / 74°0Overcast
MorningPartly cloudy79°feels 79°
AfternoonOvercast96°feels 100°
EveningOvercast86°feels 93°
OvernightClear79°feels 79°
98 °Overcast

Summum, Monday, 10 August

Overcast. High 98°, low 74°.

Pressure29.88 inHg
Wind10.6 mph SW
Humidity44%
Visibility6.2 mi
Dew point67°
Tue, 11100° / 73°0.04Light rain
MorningLight rain76°feels 77°
AfternoonClear97°feels 101°
EveningOvercast85°feels 92°
OvernightOvercast82°feels 85°
100 °Light rain

Summum, Tuesday, 11 August

Light rain. High 100°, low 73°.

Pressure29.80 inHg
Wind10.7 mph SW
Humidity58%
Visibility6.2 mi
Dew point68°
Wed, 1282° / 72°0.32Rain
MorningOvercast76°feels 78°
AfternoonRain80°feels 80°
EveningClear75°feels 76°
OvernightOvercast77°feels 78°
82 °Rain

Summum, Wednesday, 12 August

Rain. High 82°, low 72°.

Pressure29.85 inHg
Wind6 mph N
Humidity65%
Visibility6.2 mi
Dew point73°
Thu, 1382° / 66°0.81Heavy rain
MorningHeavy rain72°feels 73°
AfternoonHeavy rain80°feels 82°
EveningHeavy rain68°feels 69°
OvernightHeavy rain66°feels 67°
82 °Heavy rain

Summum, Thursday, 13 August

Heavy rain. High 82°, low 66°.

Pressure29.94 inHg
Wind11.6 mph SE
Humidity61%
Visibility—
Dew point65°
Fri, 1482° / 63°0Overcast
MorningOvercast68°feels 69°
AfternoonOvercast79°feels 81°
EveningOvercast75°feels 75°
OvernightOvercast69°feels 69°
82 °Overcast

Summum, Friday, 14 August

Overcast. High 82°, low 63°.

Pressure30.06 inHg
Wind12.2 mph E
Humidity56%
Visibility—
Dew point61°
Sat, 1570° / 63°0.09Light rain
MorningLight rain64°feels 65°
AfternoonLight rain67°feels 66°
EveningLight rain67°feels 67°
OvernightLight rain65°feels 65°
70 °Light rain

Summum, Saturday, 15 August

Light rain. High 70°, low 63°.

Pressure30.24 inHg
Wind16.3 mph E
Humidity72%
Visibility—
Dew point57°
Sun, 1678° / 63°0.01Light rain
MorningLight rain66°feels 66°
AfternoonLight rain72°feels 72°
EveningLight rain74°feels 75°
OvernightLight rain66°feels 67°
78 °Light rain

Summum, Sunday, 16 August

Light rain. High 78°, low 63°.

Pressure30.12 inHg
Wind9 mph E
Humidity74%
Visibility—
Dew point61°
Mon, 1785° / 64°0.02Light rain
MorningLight rain69°feels 70°
AfternoonLight rain80°feels 82°
EveningLight rain78°feels 78°
OvernightLight rain69°feels 70°
85 °Light rain

Summum, Monday, 17 August

Light rain. High 85°, low 64°.

Pressure30.06 inHg
Wind5.5 mph NE
Humidity62%
Visibility—
Dew point64°

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.