10-day forecast for Custer, IL: 55° to 91°, with precipitation expected on 5 days. The table below breaks each day into morning, afternoon, evening and overnight.
89°
Best day: Monday, August 10
71° · 0.29 in
Worst day: Thursday, August 13
Tap any day below to see morning, afternoon, evening and overnight.
Sun, 0991° / 67°0.16
Morning74°feels 76°
Afternoon87°feels 98°
Evening85°feels 98°
Overnight68°feels 68°
91 °
Custer, Sunday, 9 August
Rain. High 91°, low 67°.
Pressure29.91 inHg
Wind10.7 mph S
Humidity77%
Visibility6.2 mi
Dew point75°
Mon, 1089° / 75°0.01
Morning75°feels 77°
Afternoon88°feels 99°
Evening81°feels 86°
Overnight79°feels 79°
89 °
Custer, Monday, 10 August
Light rain. High 89°, low 75°.
Pressure29.91 inHg
Wind8.2 mph SW
Humidity76%
Visibility6.2 mi
Dew point72°
Tue, 1184° / 71°0.11
Morning74°feels 75°
Afternoon80°feels 86°
Evening80°feels 85°
Overnight76°feels 77°
84 °
Custer, Tuesday, 11 August
Light rain. High 84°, low 71°.
Pressure29.80 inHg
Wind12.1 mph SW
Humidity73%
Visibility6.2 mi
Dew point74°
Wed, 1276° / 69°0.12
Morning71°feels 72°
Afternoon74°feels 75°
Evening74°feels 75°
Overnight72°feels 73°
76 °
Custer, Wednesday, 12 August
Rain. High 76°, low 69°.
Pressure29.88 inHg
Wind8.8 mph NE
Humidity79%
Visibility6.2 mi
Dew point69°
Thu, 1371° / 66°0.29
Morning67°feels 68°
Afternoon71°feels 71°
Evening69°feels 69°
Overnight66°feels 66°
71 °
Custer, Thursday, 13 August
Rain. High 71°, low 66°.
Pressure29.91 inHg
Wind13.1 mph NE
Humidity88%
Visibility—
Dew point66°
Fri, 1474° / 55°0
Morning60°feels 60°
Afternoon72°feels 72°
Evening67°feels 68°
Overnight59°feels 59°
74 °
Custer, Friday, 14 August
Clear. High 74°, low 55°.
Pressure30.18 inHg
Wind7.6 mph NE
Humidity65%
Visibility—
Dew point58°
Sat, 1573° / 55°0
Morning60°feels 60°
Afternoon71°feels 71°
Evening67°feels 67°
Overnight60°feels 59°
73 °
Custer, Saturday, 15 August
Overcast. High 73°, low 55°.
Pressure30.30 inHg
Wind7.8 mph SE
Humidity59%
Visibility—
Dew point55°
Sun, 1677° / 57°0
Morning62°feels 62°
Afternoon75°feels 75°
Evening73°feels 73°
Overnight66°feels 66°
77 °
Custer, Sunday, 16 August
Overcast. High 77°, low 57°.
Pressure30.18 inHg
Wind11.3 mph S
Humidity66%
Visibility—
Dew point61°
Mon, 1780° / 66°0.03
Morning71°feels 72°
Afternoon78°feels 79°
Evening78°feels 79°
Overnight73°feels 75°
80 °
Custer, Monday, 17 August
Light rain. High 80°, low 66°.
Pressure29.97 inHg
Wind8.1 mph S
Humidity85%
Visibility—
Dew point71°
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 Custer, 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.