10-day forecast for Allen, IL: 63° to 96°, with precipitation expected on 4 days. The table below breaks each day into morning, afternoon, evening and overnight.
95°
Best day: Monday, August 10
80° · 0.42 in
Worst day: Thursday, August 13
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1095° / 75°0
Morning78°feels 80°
Afternoon93°feels 100°
Evening87°feels 93°
Overnight79°feels 79°
95 °
Allen, Monday, 10 August
Overcast. High 95°, low 75°.
Pressure29.91 inHg
Wind10.1 mph SW
Humidity56%
Visibility6.2 mi
Dew point71°
Tue, 1196° / 72°0.17
Morning74°feels 75°
Afternoon84°feels 91°
Evening84°feels 90°
Overnight82°feels 85°
96 °
Allen, Tuesday, 11 August
Rain. High 96°, low 72°.
Pressure29.80 inHg
Wind17.8 mph SW
Humidity57%
Visibility6.2 mi
Dew point70°
Wed, 1283° / 72°0.35
Morning77°feels 78°
Afternoon81°feels 87°
Evening75°feels 76°
Overnight77°feels 78°
83 °
Allen, Wednesday, 12 August
Rain. High 83°, low 72°.
Pressure29.85 inHg
Wind4.5 mph E
Humidity70%
Visibility6.2 mi
Dew point73°
Thu, 1380° / 65°0.42
Morning70°feels 71°
Afternoon78°feels 78°
Evening68°feels 69°
Overnight65°feels 66°
80 °
Allen, Thursday, 13 August
Rain. High 80°, low 65°.
Pressure29.94 inHg
Wind10.3 mph SE
Humidity70%
Visibility—
Dew point67°
Fri, 1480° / 63°0
Morning68°feels 68°
Afternoon78°feels 78°
Evening73°feels 74°
Overnight66°feels 67°
80 °
Allen, Friday, 14 August
Overcast. High 80°, low 63°.
Pressure30.09 inHg
Wind11.2 mph E
Humidity62%
Visibility—
Dew point62°
Sat, 1569° / 63°0.09
Morning64°feels 64°
Afternoon64°feels 64°
Evening67°feels 67°
Overnight64°feels 64°
69 °
Allen, Saturday, 15 August
Light rain. High 69°, low 63°.
Pressure30.24 inHg
Wind14.5 mph E
Humidity84%
Visibility—
Dew point59°
Sun, 1674° / 63°0.01
Morning65°feels 65°
Afternoon69°feels 70°
Evening72°feels 73°
Overnight65°feels 66°
74 °
Allen, Sunday, 16 August
Light rain. High 74°, low 63°.
Pressure30.12 inHg
Wind9.8 mph E
Humidity80%
Visibility—
Dew point61°
Mon, 1781° / 63°0.02
Morning68°feels 69°
Afternoon78°feels 79°
Evening76°feels 77°
Overnight68°feels 69°
81 °
Allen, Monday, 17 August
Light rain. High 81°, low 63°.
Pressure30.06 inHg
Wind6.4 mph NE
Humidity69%
Visibility—
Dew point65°
Tue, 1885° / 65°0
Morning70°feels 71°
Afternoon82°feels 85°
Evening79°feels 83°
Overnight71°feels 73°
85 °
Allen, Tuesday, 18 August
Overcast. High 85°, low 65°.
Pressure30.00 inHg
Wind6.8 mph S
Humidity61%
Visibility—
Dew point65°
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.