10-day forecast for Frankfort, IL: 59° to 90°, with precipitation expected on 8 days. The table below breaks each day into morning, afternoon, evening and overnight.
79°
Best day: Tuesday, August 18
80° · 0.38 in
Worst day: Tuesday, August 11
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1090° / 71°0.13
Morning76°feels 77°
Afternoon90°feels 102°
Evening74°feels 76°
Overnight77°feels 78°
90 °
Frankfort, Monday, 10 August
Light rain. High 90°, low 71°.
Pressure29.88 inHg
Wind7.2 mph W
Humidity72%
Visibility6.2 mi
Dew point74°
Tue, 1180° / 69°0.38
Morning73°feels 75°
Afternoon78°feels 80°
Evening75°feels 77°
Overnight70°feels 71°
80 °
Frankfort, Tuesday, 11 August
Rain. High 80°, low 69°.
Pressure29.85 inHg
Wind5.6 mph W
Humidity89%
Visibility6.2 mi
Dew point73°
Wed, 1283° / 70°0.04
Morning73°feels 74°
Afternoon83°feels 87°
Evening72°feels 73°
Overnight71°feels 72°
83 °
Frankfort, Wednesday, 12 August
Light rain. High 83°, low 70°.
Pressure29.85 inHg
Wind6.6 mph W
Humidity76%
Visibility6.2 mi
Dew point71°
Thu, 1375° / 63°0.05
Morning69°feels 69°
Afternoon73°feels 73°
Evening65°feels 65°
Overnight67°feels 67°
75 °
Frankfort, Thursday, 13 August
Light rain. High 75°, low 63°.
Pressure30.00 inHg
Wind9.7 mph NE
Humidity59%
Visibility—
Dew point58°
Fri, 1474° / 59°0.06
Morning64°feels 63°
Afternoon73°feels 72°
Evening65°feels 65°
Overnight64°feels 63°
74 °
Frankfort, Friday, 14 August
Light rain. High 74°, low 59°.
Pressure30.15 inHg
Wind9 mph NE
Humidity50%
Visibility—
Dew point52°
Sat, 1576° / 59°0.07
Morning64°feels 64°
Afternoon74°feels 73°
Evening70°feels 70°
Overnight65°feels 65°
76 °
Frankfort, Saturday, 15 August
Light rain. High 76°, low 59°.
Pressure30.24 inHg
Wind9 mph SE
Humidity58%
Visibility—
Dew point56°
Sun, 1677° / 62°0.05
Morning66°feels 66°
Afternoon75°feels 76°
Evening73°feels 74°
Overnight69°feels 69°
77 °
Frankfort, Sunday, 16 August
Light rain. High 77°, low 62°.
Pressure30.09 inHg
Wind7.3 mph SE
Humidity70%
Visibility—
Dew point63°
Mon, 1779° / 64°0.02
Morning70°feels 70°
Afternoon78°feels 78°
Evening71°feels 72°
Overnight67°feels 67°
79 °
Frankfort, Monday, 17 August
Light rain. High 79°, low 64°.
Pressure30.06 inHg
Wind7.7 mph W
Humidity65%
Visibility—
Dew point65°
Tue, 1879° / 64°0
Morning67°feels 67°
Afternoon74°feels 75°
Evening75°feels 76°
Overnight69°feels 70°
79 °
Frankfort, Tuesday, 18 August
Partly cloudy. High 79°, low 64°.
Pressure30.03 inHg
Wind5.2 mph S
Humidity84%
Visibility—
Dew point67°
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 Frankfort, 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.