10-day forecast for Fountain, IL: 67° to 103°, with precipitation expected on 4 days. The table below breaks each day into morning, afternoon, evening and overnight.
103°
Best day: Tuesday, August 11
76° · 0.05 in
Worst day: Friday, August 14
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 10101° / 72°0
Morning80°feels 80°
Afternoon100°feels 103°
Evening89°feels 92°
Overnight83°feels 87°
101 °
Fountain, Monday, 10 August
Light rain. High 101°, low 72°.
Pressure29.94 inHg
Wind12.1 mph SW
Humidity38%
Visibility6.2 mi
Dew point67°
Tue, 11103° / 73°0
Morning80°feels 83°
Afternoon102°feels 103°
Evening88°feels 90°
Overnight74°feels 74°
103 °
Fountain, Tuesday, 11 August
Partly cloudy. High 103°, low 73°.
Pressure29.88 inHg
Wind12.4 mph SW
Humidity33%
Visibility6.2 mi
Dew point65°
Wed, 12102° / 79°0.02
Morning80°feels 84°
Afternoon100°feels 104°
Evening88°feels 94°
Overnight85°feels 87°
102 °
Fountain, Wednesday, 12 August
Light rain. High 102°, low 79°.
Pressure29.83 inHg
Wind9.7 mph W
Humidity41%
Visibility6.2 mi
Dew point68°
Thu, 1394° / 74°0.09
Morning78°feels 82°
Afternoon89°feels 97°
Evening83°feels 90°
Overnight76°feels 77°
94 °
Fountain, Thursday, 13 August
Light rain. High 94°, low 74°.
Pressure29.88 inHg
Wind15.8 mph E
Humidity56%
Visibility—
Dew point70°
Fri, 1476° / 67°0.05
Morning71°feels 72°
Afternoon75°feels 76°
Evening74°feels 75°
Overnight70°feels 71°
76 °
Fountain, Friday, 14 August
Light rain. High 76°, low 67°.
Pressure30.03 inHg
Wind12.7 mph E
Humidity78%
Visibility—
Dew point67°
Sat, 1596° / 67°0.07
Morning73°feels 75°
Afternoon87°feels 92°
Evening83°feels 90°
Overnight76°feels 77°
96 °
Fountain, Saturday, 15 August
Light rain. High 96°, low 67°.
Pressure30.09 inHg
Wind13.4 mph E
Humidity56%
Visibility—
Dew point67°
Sun, 1696° / 72°0
Morning78°feels 81°
Afternoon90°feels 97°
Evening87°feels 95°
Overnight77°feels 79°
96 °
Fountain, Sunday, 16 August
Partly cloudy. High 96°, low 72°.
Pressure30.03 inHg
Wind10.1 mph NW
Humidity54%
Visibility—
Dew point69°
Mon, 1792° / 73°0.11
Morning77°feels 80°
Afternoon87°feels 92°
Evening81°feels 85°
Overnight74°feels 76°
92 °
Fountain, Monday, 17 August
Light rain. High 92°, low 73°.
Pressure30.03 inHg
Wind10.4 mph NE
Humidity58%
Visibility—
Dew point69°
Tue, 1898° / 69°0.03
Morning76°feels 78°
Afternoon92°feels 98°
Evening87°feels 93°
Overnight78°feels 80°
98 °
Fountain, Tuesday, 18 August
Light rain. High 98°, low 69°.
Pressure29.94 inHg
Wind14 mph E
Humidity49%
Visibility—
Dew point68°
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 Fountain, 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.