10-day forecast for Polk, IL: 62° to 91°, with precipitation expected on 6 days. The table below breaks each day into morning, afternoon, evening and overnight.
86°
Best day: Tuesday, August 18
86° · 0.48 in
Worst day: Tuesday, August 11
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1091° / 73°0.41
Morning77°feels 78°
Afternoon90°feels 103°
Evening80°feels 80°
Overnight74°feels 76°
91 °
Polk, Monday, 10 August
Rain. High 91°, low 73°.
Pressure29.88 inHg
Wind6.9 mph W
Humidity68%
Visibility6.2 mi
Dew point74°
Tue, 1186° / 70°0.48
Morning73°feels 75°
Afternoon72°feels 74°
Evening73°feels 75°
Overnight72°feels 73°
86 °
Polk, Tuesday, 11 August
Rain. High 86°, low 70°.
Pressure29.83 inHg
Wind15.8 mph SW
Humidity68%
Visibility6.2 mi
Dew point74°
Wed, 1283° / 66°0
Morning71°feels 72°
Afternoon83°feels 87°
Evening71°feels 71°
Overnight68°feels 69°
83 °
Polk, Wednesday, 12 August
Partly cloudy. High 83°, low 66°.
Pressure29.88 inHg
Wind4.7 mph N
Humidity63%
Visibility6.2 mi
Dew point68°
Thu, 1381° / 63°0.19
Morning67°feels 67°
Afternoon82°feels 83°
Evening70°feels 71°
Overnight64°feels 64°
81 °
Polk, Thursday, 13 August
Light rain. High 81°, low 63°.
Pressure29.97 inHg
Wind9 mph SE
Humidity50%
Visibility6.2 mi
Dew point59°
Fri, 1478° / 68°0.19
Morning71°feels 73°
Afternoon78°feels 79°
Evening76°feels 77°
Overnight71°feels 72°
78 °
Polk, Friday, 14 August
Light rain. High 78°, low 68°.
Pressure30.03 inHg
Wind9.6 mph E
Humidity79%
Visibility—
Dew point69°
Sat, 1588° / 71°0.07
Morning76°feels 78°
Afternoon86°feels 93°
Evening83°feels 91°
Overnight79°feels 82°
88 °
Polk, Saturday, 15 August
Light rain. High 88°, low 71°.
Pressure29.91 inHg
Wind12.1 mph SW
Humidity62%
Visibility—
Dew point70°
Sun, 1684° / 69°0.01
Morning74°feels 75°
Afternoon74°feels 75°
Evening70°feels 70°
Overnight70°feels 70°
84 °
Polk, Sunday, 16 August
Light rain. High 84°, low 69°.
Pressure29.97 inHg
Wind14.2 mph SW
Humidity75%
Visibility—
Dew point66°
Mon, 1781° / 62°0
Morning67°feels 68°
Afternoon75°feels 76°
Evening75°feels 76°
Overnight71°feels 72°
81 °
Polk, Monday, 17 August
Overcast. High 81°, low 62°.
Pressure30.00 inHg
Wind12 mph SE
Humidity69%
Visibility—
Dew point63°
Tue, 1886° / 74°0
Morning82°feels 85°
Afternoon85°feels 91°
Evening80°feels 85°
Overnight75°feels 77°
86 °
Polk, Tuesday, 18 August
Overcast. High 86°, low 74°.
Pressure29.85 inHg
Wind14.2 mph SW
Humidity61%
Visibility—
Dew point70°
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 Polk, 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.