10-day forecast for Birch Island, IL: 69° to 106°, with precipitation expected on 3 days. The table below breaks each day into morning, afternoon, evening and overnight.
106°
Best day: Saturday, August 15
94° · 0.22 in
Worst day: Thursday, August 13
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 10100° / 75°0
Morning79°feels 79°
Afternoon98°feels 100°
Evening92°feels 96°
Overnight85°feels 89°
100 °
Birch Island, Monday, 10 August
Mostly clear. High 100°, low 75°.
Pressure29.91 inHg
Wind11.8 mph SW
Humidity39%
Visibility6.2 mi
Dew point67°
Tue, 11104° / 78°0
Morning82°feels 84°
Afternoon102°feels 106°
Evening90°feels 93°
Overnight83°feels 85°
104 °
Birch Island, Tuesday, 11 August
Mostly clear. High 104°, low 78°.
Pressure29.85 inHg
Wind15.5 mph SW
Humidity36%
Visibility6.2 mi
Dew point66°
Wed, 1298° / 72°0.11
Morning79°feels 80°
Afternoon98°feels 100°
Evening76°feels 77°
Overnight81°feels 83°
98 °
Birch Island, Wednesday, 12 August
Light rain. High 98°, low 72°.
Pressure29.83 inHg
Wind4 mph SW
Humidity51%
Visibility6.2 mi
Dew point70°
Thu, 1394° / 69°0.22
Morning73°feels 74°
Afternoon96°feels 101°
Evening86°feels 90°
Overnight70°feels 71°
94 °
Birch Island, Thursday, 13 August
Rain. High 94°, low 69°.
Pressure29.88 inHg
Wind12 mph S
Humidity54%
Visibility6.2 mi
Dew point70°
Fri, 14101° / 76°0
Morning82°feels 84°
Afternoon96°feels 100°
Evening90°feels 98°
Overnight82°feels 87°
101 °
Birch Island, Friday, 14 August
Overcast. High 101°, low 76°.
Pressure29.91 inHg
Wind12.5 mph E
Humidity36%
Visibility—
Dew point63°
Sat, 15106° / 80°0
Morning87°feels 87°
Afternoon103°feels 104°
Evening97°feels 99°
Overnight87°feels 87°
106 °
Birch Island, Saturday, 15 August
Mostly clear. High 106°, low 80°.
Pressure29.94 inHg
Wind14.8 mph SW
Humidity24%
Visibility—
Dew point57°
Sun, 1698° / 76°0
Morning82°feels 84°
Afternoon95°feels 100°
Evening84°feels 87°
Overnight77°feels 78°
98 °
Birch Island, Sunday, 16 August
Partly cloudy. High 98°, low 76°.
Pressure29.94 inHg
Wind16.1 mph SW
Humidity40%
Visibility—
Dew point66°
Mon, 17106° / 70°0.06
Morning77°feels 79°
Afternoon95°feels 100°
Evening95°feels 97°
Overnight81°feels 82°
106 °
Birch Island, Monday, 17 August
Light rain. High 106°, low 70°.
Pressure29.91 inHg
Wind12.8 mph SE
Humidity42%
Visibility—
Dew point65°
Tue, 18102° / 83°0
Morning88°feels 88°
Afternoon99°feels 103°
Evening91°feels 94°
Overnight83°feels 83°
102 °
Birch Island, Tuesday, 18 August
Overcast. High 102°, low 83°.
Pressure29.88 inHg
Wind14.4 mph SW
Humidity31%
Visibility—
Dew point62°
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 Birch Island, 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.