10-day forecast for Alvan, IL: 40° to 87°, with precipitation expected on 3 days. The table below breaks each day into morning, afternoon, evening and overnight.
87°
Best day: Monday, October 12
77° · 0.43 in
Worst day: Wednesday, October 14
Tap any day below to see morning, afternoon, evening and overnight.
Tue, 1385° / 67°0
Morning71°feels 71°
Afternoon84°feels 85°
Evening71°feels 71°
Overnight69°feels 69°
85 °
Alvan, Tuesday, 13 October
Mostly clear. High 85°, low 67°.
Pressure29.88 inHg
Wind11 mph SW
Humidity50%
Visibility6.2 mi
Dew point61°
Wed, 1477° / 64°0.43
Morning68°feels 69°
Afternoon74°feels 75°
Evening67°feels 67°
Overnight66°feels 66°
77 °
Alvan, Wednesday, 14 October
Heavy rain. High 77°, low 64°.
Pressure30.00 inHg
Wind5.3 mph NE
Humidity67%
Visibility6.2 mi
Dew point65°
Thu, 1575° / 65°0.3
Morning65°feels 65°
Afternoon71°feels 72°
Evening71°feels 73°
Overnight66°feels 66°
75 °
Alvan, Thursday, 15 October
Rain. High 75°, low 65°.
Pressure30.03 inHg
Wind7.5 mph SE
Humidity91%
Visibility3.4 mi
Dew point63°
Fri, 1662° / 49°0.14
Morning55°feels 53°
Afternoon58°feels 56°
Evening51°feels 49°
Overnight61°feels 61°
62 °
Alvan, Friday, 16 October
Light rain. High 62°, low 49°.
Pressure30.21 inHg
Wind23 mph NW
Humidity42%
Visibility6.2 mi
Dew point34°
Sat, 1760° / 40°0
Morning45°feels 43°
Afternoon57°feels 55°
Evening50°feels 47°
Overnight46°feels 43°
60 °
Alvan, Saturday, 17 October
Clear. High 60°, low 40°.
Pressure30.50 inHg
Wind8.1 mph NW
Humidity39%
Visibility—
Dew point31°
Sun, 1864° / 43°0
Morning48°feels 44°
Afternoon60°feels 58°
Evening53°feels 50°
Overnight49°feels 46°
64 °
Alvan, Sunday, 18 October
Clear. High 64°, low 43°.
Pressure30.33 inHg
Wind11.3 mph S
Humidity35%
Visibility—
Dew point31°
Mon, 1970° / 47°0
Morning53°feels 50°
Afternoon67°feels 66°
Evening62°feels 61°
Overnight58°feels 56°
70 °
Alvan, Monday, 19 October
Overcast. High 70°, low 47°.
Pressure30.33 inHg
Wind9.8 mph S
Humidity47%
Visibility—
Dew point44°
Tue, 2071° / 54°0
Morning59°feels 58°
Afternoon70°feels 69°
Evening64°feels 63°
Overnight60°feels 59°
71 °
Alvan, Tuesday, 20 October
Overcast. High 71°, low 54°.
Pressure30.27 inHg
Wind7.7 mph S
Humidity50%
Visibility—
Dew point49°
Wed, 2175° / 56°0
Morning61°feels 61°
Afternoon72°feels 71°
Evening65°feels 64°
Overnight61°feels 60°
75 °
Alvan, Wednesday, 21 October
Clear. High 75°, low 56°.
Pressure30.21 inHg
Wind7.2 mph S
Humidity53%
Visibility—
Dew point53°
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 Alvan, 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.