10-day forecast for Fayetteville, IL: 67° to 101°, with precipitation expected on 5 days. The table below breaks each day into morning, afternoon, evening and overnight.
99°
Best day: Monday, August 10
81° · 1.44 in
Worst day: Thursday, August 13
Tap any day below to see morning, afternoon, evening and overnight.
Sun, 0996° / 73°0
Morning78°feels 79°
Afternoon93°feels 99°
Evening87°feels 92°
Overnight76°feels 77°
96 °
Fayetteville, Sunday, 9 August
Partly cloudy. High 96°, low 73°.
Pressure30.00 inHg
Wind10.2 mph S
Humidity57%
Visibility6.2 mi
Dew point72°
Mon, 1099° / 75°0
Morning78°feels 80°
Afternoon97°feels 103°
Evening87°feels 90°
Overnight83°feels 88°
99 °
Fayetteville, Monday, 10 August
Mostly clear. High 99°, low 75°.
Pressure29.94 inHg
Wind12.6 mph SW
Humidity47%
Visibility6.2 mi
Dew point70°
Tue, 11101° / 76°0.03
Morning78°feels 80°
Afternoon100°feels 104°
Evening89°feels 90°
Overnight83°feels 85°
101 °
Fayetteville, Tuesday, 11 August
Light rain. High 101°, low 76°.
Pressure29.88 inHg
Wind10.4 mph SW
Humidity42%
Visibility6.2 mi
Dew point69°
Wed, 1292° / 73°0.15
Morning74°feels 75°
Afternoon90°feels 96°
Evening78°feels 79°
Overnight87°feels 88°
92 °
Fayetteville, Wednesday, 12 August
Light rain. High 92°, low 73°.
Pressure29.88 inHg
Wind4.8 mph NW
Humidity82%
Visibility6.2 mi
Dew point72°
Thu, 1381° / 71°1.44
Morning74°feels 75°
Afternoon78°feels 79°
Evening75°feels 77°
Overnight73°feels 74°
81 °
Fayetteville, Thursday, 13 August
Rain. High 81°, low 71°.
Pressure29.91 inHg
Wind10.8 mph NE
Humidity83%
Visibility—
Dew point72°
Fri, 1476° / 70°0.29
Morning72°feels 73°
Afternoon76°feels 77°
Evening74°feels 75°
Overnight71°feels 73°
76 °
Fayetteville, Friday, 14 August
Rain. High 76°, low 70°.
Pressure30.03 inHg
Wind14 mph SE
Humidity87%
Visibility—
Dew point71°
Sat, 1580° / 67°0.19
Morning70°feels 71°
Afternoon77°feels 78°
Evening75°feels 77°
Overnight71°feels 72°
80 °
Fayetteville, Saturday, 15 August
Light rain. High 80°, low 67°.
Pressure30.18 inHg
Wind13.2 mph SE
Humidity78%
Visibility—
Dew point68°
Sun, 1684° / 67°0.03
Morning72°feels 74°
Afternoon82°feels 88°
Evening76°feels 78°
Overnight71°feels 73°
84 °
Fayetteville, Sunday, 16 August
Light rain. High 84°, low 67°.
Pressure30.06 inHg
Wind10 mph E
Humidity75%
Visibility—
Dew point72°
Mon, 1784° / 70°0.06
Morning73°feels 76°
Afternoon82°feels 86°
Evening78°feels 78°
Overnight72°feels 73°
84 °
Fayetteville, Monday, 17 August
Light rain. High 84°, low 70°.
Pressure30.03 inHg
Wind9.1 mph NE
Humidity75%
Visibility—
Dew point72°
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 Fayetteville, 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.