10-day forecast for Allen, IL: 51° to 78°, with precipitation expected on 4 days. The table below breaks each day into morning, afternoon, evening and overnight.
78°
Best day: Friday, October 30
72° · 1.88 in
Worst day: Monday, November 2
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 2675° / 52°0
Morning54°feels 54°
Afternoon75°feels 74°
Evening62°feels 61°
Overnight54°feels 53°
75 °
Allen, Monday, 26 October
Overcast. High 75°, low 52°.
Pressure30.30 inHg
Wind2.9 mph SE
Humidity48%
Visibility6.2 mi
Dew point51°
Tue, 2772° / 53°0
Morning55°feels 54°
Afternoon72°feels 71°
Evening63°feels 62°
Overnight54°feels 54°
72 °
Allen, Tuesday, 27 October
Overcast. High 72°, low 53°.
Pressure30.21 inHg
Wind8 mph S
Humidity53%
Visibility6.2 mi
Dew point51°
Wed, 2875° / 55°0
Morning55°feels 54°
Afternoon74°feels 74°
Evening66°feels 65°
Overnight58°feels 57°
75 °
Allen, Wednesday, 28 October
Clear. High 75°, low 55°.
Pressure30.18 inHg
Wind10.2 mph S
Humidity52%
Visibility6.2 mi
Dew point53°
Thu, 2978° / 59°0.05
Morning64°feels 63°
Afternoon75°feels 74°
Evening65°feels 65°
Overnight61°feels 61°
78 °
Allen, Thursday, 29 October
Light rain. High 78°, low 59°.
Pressure30.09 inHg
Wind12.1 mph SW
Humidity52%
Visibility—
Dew point55°
Fri, 3078° / 59°0.01
Morning64°feels 64°
Afternoon75°feels 75°
Evening69°feels 69°
Overnight65°feels 65°
78 °
Allen, Friday, 30 October
Light rain. High 78°, low 59°.
Pressure30.12 inHg
Wind9.2 mph SW
Humidity58%
Visibility—
Dew point58°
Sat, 3171° / 63°0.02
Morning65°feels 64°
Afternoon70°feels 69°
Evening67°feels 66°
Overnight64°feels 64°
71 °
Allen, Saturday, 31 October
Light rain. High 71°, low 63°.
Pressure30.12 inHg
Wind9.1 mph SE
Humidity55%
Visibility—
Dew point53°
Sun, 0169° / 60°0.41
Morning61°feels 61°
Afternoon64°feels 64°
Evening64°feels 64°
Overnight61°feels 62°
69 °
Allen, Sunday, 1 November
Rain. High 69°, low 60°.
Pressure30.03 inHg
Wind13.4 mph S
Humidity87%
Visibility—
Dew point59°
Mon, 0272° / 62°1.88
Morning64°feels 64°
Afternoon69°feels 69°
Evening69°feels 69°
Overnight64°feels 65°
72 °
Allen, Monday, 2 November
Heavy rain. High 72°, low 62°.
Pressure29.77 inHg
Wind20 mph S
Humidity81%
Visibility—
Dew point62°
Tue, 0368° / 52°0.04
Morning60°feels 60°
Afternoon61°feels 60°
Evening55°feels 53°
Overnight53°feels 51°
68 °
Allen, Tuesday, 3 November
Light rain. High 68°, low 52°.
Pressure29.77 inHg
Wind16.5 mph SW
Humidity64%
Visibility—
Dew point49°
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 Allen, 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.