10-day forecast for Frontenac, IL: 40° to 73°, with precipitation expected on 3 days. The table below breaks each day into morning, afternoon, evening and overnight.
64°
Best day: Sunday, November 1
73° · 0.76 in
Worst day: Tuesday, November 3
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 0262° / 56°0.01
Morning57°feels 56°
Afternoon61°feels 61°
Evening61°feels 61°
Overnight57°feels 56°
62 °
Frontenac, Monday, 2 November
Light rain. High 62°, low 56°.
Pressure30.06 inHg
Wind12.7 mph S
Humidity77%
Visibility6.2 mi
Dew point55°
Tue, 0373° / 61°0.76
Morning65°feels 65°
Afternoon71°feels 71°
Evening65°feels 66°
Overnight63°feels 63°
73 °
Frontenac, Tuesday, 3 November
Heavy rain. High 73°, low 61°.
Pressure29.83 inHg
Wind11.5 mph S
Humidity82%
Visibility4.3 mi
Dew point63°
Wed, 0464° / 56°0.41
Morning61°feels 61°
Afternoon58°feels 56°
Evening56°feels 55°
Overnight64°feels 65°
64 °
Frontenac, Wednesday, 4 November
Heavy rain. High 64°, low 56°.
Pressure29.68 inHg
Wind14.4 mph SW
Humidity69%
Visibility6.2 mi
Dew point49°
Thu, 0555° / 50°0.08
Morning51°feels 49°
Afternoon52°feels 51°
Evening53°feels 52°
Overnight54°feels 52°
55 °
Frontenac, Thursday, 5 November
Light rain. High 55°, low 50°.
Pressure29.74 inHg
Wind10.6 mph SW
Humidity80%
Visibility6.2 mi
Dew point45°
Fri, 0652° / 47°0.04
Morning48°feels 46°
Afternoon52°feels 51°
Evening51°feels 50°
Overnight49°feels 46°
52 °
Frontenac, Friday, 6 November
Light rain. High 52°, low 47°.
Pressure30.00 inHg
Wind9 mph N
Humidity86%
Visibility—
Dew point47°
Sat, 0753° / 47°0
Morning49°feels 47°
Afternoon51°feels 49°
Evening49°feels 46°
Overnight47°feels 44°
53 °
Frontenac, Saturday, 7 November
Overcast. High 53°, low 47°.
Pressure30.03 inHg
Wind7.3 mph N
Humidity70%
Visibility—
Dew point41°
Sun, 0853° / 44°0
Morning47°feels 43°
Afternoon52°feels 49°
Evening46°feels 42°
Overnight44°feels 40°
53 °
Frontenac, Sunday, 8 November
Overcast. High 53°, low 44°.
Pressure30.03 inHg
Wind13.3 mph NE
Humidity52%
Visibility—
Dew point35°
Mon, 0954° / 40°0
Morning44°feels 40°
Afternoon53°feels 50°
Evening47°feels 46°
Overnight44°feels 41°
54 °
Frontenac, Monday, 9 November
Mostly clear. High 54°, low 40°.
Pressure30.09 inHg
Wind7.6 mph N
Humidity54%
Visibility—
Dew point35°
Tue, 1059° / 42°0
Morning47°feels 43°
Afternoon56°feels 55°
Evening51°feels 49°
Overnight47°feels 44°
59 °
Frontenac, Tuesday, 10 November
Partly cloudy. High 59°, low 42°.
Pressure30.03 inHg
Wind12.2 mph W
Humidity60%
Visibility—
Dew point42°
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 Frontenac, 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.