10-day forecast for Lancaster, IL: 50° to 76°, with precipitation expected on 3 days. The table below breaks each day into morning, afternoon, evening and overnight.
76°
Best day: Sunday, October 25
57° · 0.22 in
Worst day: Saturday, October 31
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 2674° / 52°0
Morning55°feels 55°
Afternoon74°feels 73°
Evening59°feels 58°
Overnight54°feels 53°
74 °
Lancaster, Monday, 26 October
Overcast. High 74°, low 52°.
Pressure30.30 inHg
Wind2.9 mph S
Humidity57%
Visibility6.2 mi
Dew point54°
Tue, 2770° / 51°0.02
Morning54°feels 53°
Afternoon70°feels 69°
Evening61°feels 60°
Overnight52°feels 52°
70 °
Lancaster, Tuesday, 27 October
Light rain. High 70°, low 51°.
Pressure30.21 inHg
Wind6.4 mph S
Humidity61%
Visibility6.2 mi
Dew point53°
Wed, 2871° / 55°0
Morning55°feels 54°
Afternoon70°feels 69°
Evening62°feels 61°
Overnight58°feels 57°
71 °
Lancaster, Wednesday, 28 October
Clear. High 71°, low 55°.
Pressure30.18 inHg
Wind8.3 mph S
Humidity61%
Visibility6.2 mi
Dew point53°
Thu, 2973° / 57°0.1
Morning59°feels 59°
Afternoon73°feels 73°
Evening64°feels 64°
Overnight59°feels 58°
73 °
Lancaster, Thursday, 29 October
Light rain. High 73°, low 57°.
Pressure30.06 inHg
Wind9.3 mph SW
Humidity63%
Visibility6.2 mi
Dew point57°
Fri, 3069° / 55°0
Morning59°feels 58°
Afternoon66°feels 66°
Evening61°feels 60°
Overnight58°feels 58°
69 °
Lancaster, Friday, 30 October
Overcast. High 69°, low 55°.
Pressure30.18 inHg
Wind6.2 mph E
Humidity71%
Visibility—
Dew point56°
Sat, 3157° / 55°0.22
Morning56°feels 55°
Afternoon56°feels 55°
Evening55°feels 54°
Overnight55°feels 54°
57 °
Lancaster, Saturday, 31 October
Light rain. High 57°, low 55°.
Pressure30.21 inHg
Wind9.8 mph SE
Humidity73%
Visibility—
Dew point48°
Sun, 0164° / 53°0.19
Morning56°feels 55°
Afternoon59°feels 58°
Evening57°feels 56°
Overnight56°feels 56°
64 °
Lancaster, Sunday, 1 November
Light rain. High 64°, low 53°.
Pressure30.15 inHg
Wind8.3 mph SE
Humidity74%
Visibility—
Dew point50°
Mon, 0261° / 56°0.02
Morning56°feels 56°
Afternoon58°feels 57°
Evening56°feels 56°
Overnight56°feels 56°
61 °
Lancaster, Monday, 2 November
Light rain. High 61°, low 56°.
Pressure30.12 inHg
Wind9.6 mph E
Humidity88%
Visibility—
Dew point54°
Tue, 0366° / 52°0
Morning55°feels 54°
Afternoon64°feels 62°
Evening58°feels 57°
Overnight56°feels 54°
66 °
Lancaster, Tuesday, 3 November
Overcast. High 66°, low 52°.
Pressure30.09 inHg
Wind10.3 mph E
Humidity53%
Visibility—
Dew point45°
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 Lancaster, 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.