10-day forecast for Lyndon, IL: 60° to 89°, with precipitation expected on 6 days. The table below breaks each day into morning, afternoon, evening and overnight.
87°
Best day: Tuesday, August 11
75° · 0.57 in
Worst day: Thursday, August 13
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1089° / 72°0.05
Morning76°feels 78°
Afternoon88°feels 101°
Evening78°feels 80°
Overnight77°feels 79°
89 °
Lyndon, Monday, 10 August
Rain. High 89°, low 72°.
Pressure29.88 inHg
Wind4 mph E
Humidity81%
Visibility6.2 mi
Dew point76°
Tue, 1187° / 69°0
Morning73°feels 74°
Afternoon79°feels 79°
Evening79°feels 79°
Overnight73°feels 74°
87 °
Lyndon, Tuesday, 11 August
Overcast. High 87°, low 69°.
Pressure29.80 inHg
Wind5 mph SW
Humidity74%
Visibility6.2 mi
Dew point72°
Wed, 1284° / 68°0.05
Morning72°feels 73°
Afternoon82°feels 87°
Evening72°feels 73°
Overnight72°feels 73°
84 °
Lyndon, Wednesday, 12 August
Light rain. High 84°, low 68°.
Pressure29.85 inHg
Wind5.6 mph NE
Humidity74%
Visibility6.2 mi
Dew point72°
Thu, 1375° / 62°0.57
Morning65°feels 66°
Afternoon73°feels 74°
Evening65°feels 66°
Overnight64°feels 64°
75 °
Lyndon, Thursday, 13 August
Heavy rain. High 75°, low 62°.
Pressure30.03 inHg
Wind8.9 mph NE
Humidity72%
Visibility—
Dew point64°
Fri, 1473° / 60°0.09
Morning64°feels 64°
Afternoon71°feels 72°
Evening68°feels 68°
Overnight66°feels 65°
73 °
Lyndon, Friday, 14 August
Light rain. High 73°, low 60°.
Pressure30.15 inHg
Wind12.8 mph E
Humidity65%
Visibility—
Dew point58°
Sat, 1574° / 62°0.05
Morning65°feels 64°
Afternoon73°feels 73°
Evening69°feels 69°
Overnight66°feels 66°
74 °
Lyndon, Saturday, 15 August
Light rain. High 74°, low 62°.
Pressure30.21 inHg
Wind10.8 mph NE
Humidity69%
Visibility—
Dew point61°
Sun, 1677° / 65°0.02
Morning67°feels 68°
Afternoon74°feels 75°
Evening74°feels 75°
Overnight69°feels 70°
77 °
Lyndon, Sunday, 16 August
Light rain. High 77°, low 65°.
Pressure30.09 inHg
Wind5.7 mph E
Humidity85%
Visibility—
Dew point68°
Mon, 1781° / 64°0
Morning69°feels 69°
Afternoon79°feels 79°
Evening75°feels 76°
Overnight68°feels 69°
81 °
Lyndon, Monday, 17 August
Overcast. High 81°, low 64°.
Pressure30.09 inHg
Wind5.9 mph E
Humidity69%
Visibility—
Dew point66°
Tue, 1880° / 63°0
Morning68°feels 69°
Afternoon79°feels 79°
Evening76°feels 78°
Overnight70°feels 71°
80 °
Lyndon, Tuesday, 18 August
Overcast. High 80°, low 63°.
Pressure30.00 inHg
Wind9.6 mph S
Humidity74%
Visibility—
Dew point68°
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 Lyndon, 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.