10-day forecast for Vandalia, IL: 28° to 71°, with precipitation expected on 1 day. The table below breaks each day into morning, afternoon, evening and overnight.
71°
Best day: Friday, November 20
44°
Worst day: Saturday, November 14
Tap any day below to see morning, afternoon, evening and overnight.
Sun, 1551° / 29°0
Morning36°feels 33°
Afternoon51°feels 48°
Evening40°feels 37°
Overnight30°feels 30°
51 °
Vandalia, Sunday, 15 November
Clear. High 51°, low 29°.
Pressure30.45 inHg
Wind1.2 mph NE
Humidity51%
Visibility6.2 mi
Dew point29°
Mon, 1653° / 32°0
Morning36°feels 34°
Afternoon53°feels 50°
Evening41°feels 41°
Overnight34°feels 34°
53 °
Vandalia, Monday, 16 November
Clear. High 53°, low 32°.
Pressure30.53 inHg
Wind2.6 mph S
Humidity50%
Visibility6.2 mi
Dew point34°
Tue, 1755° / 33°0
Morning37°feels 34°
Afternoon55°feels 53°
Evening44°feels 40°
Overnight35°feels 32°
55 °
Vandalia, Tuesday, 17 November
Clear. High 55°, low 33°.
Pressure30.50 inHg
Wind5.5 mph S
Humidity52%
Visibility6.2 mi
Dew point36°
Wed, 1858° / 38°0
Morning44°feels 40°
Afternoon56°feels 54°
Evening49°feels 46°
Overnight39°feels 36°
58 °
Vandalia, Wednesday, 18 November
Overcast. High 58°, low 38°.
Pressure30.39 inHg
Wind9.7 mph S
Humidity50%
Visibility—
Dew point36°
Thu, 1960° / 44°0
Morning47°feels 44°
Afternoon55°feels 53°
Evening57°feels 56°
Overnight54°feels 52°
60 °
Vandalia, Thursday, 19 November
Overcast. High 60°, low 44°.
Pressure30.33 inHg
Wind8.5 mph S
Humidity58%
Visibility—
Dew point39°
Fri, 2071° / 51°0
Morning57°feels 55°
Afternoon68°feels 67°
Evening61°feels 59°
Overnight57°feels 56°
71 °
Vandalia, Friday, 20 November
Partly cloudy. High 71°, low 51°.
Pressure30.21 inHg
Wind11.4 mph S
Humidity50%
Visibility—
Dew point47°
Sat, 2168° / 52°0.05
Morning56°feels 55°
Afternoon66°feels 64°
Evening60°feels 59°
Overnight58°feels 57°
68 °
Vandalia, Saturday, 21 November
Light rain. High 68°, low 52°.
Pressure30.00 inHg
Wind22.7 mph W
Humidity37%
Visibility—
Dew point38°
Sun, 2253° / 40°0
Morning46°feels 40°
Afternoon49°feels 45°
Evening42°feels 36°
Overnight41°feels 35°
53 °
Vandalia, Sunday, 22 November
Overcast. High 53°, low 40°.
Pressure30.21 inHg
Wind18.1 mph W
Humidity51%
Visibility—
Dew point32°
Mon, 2346° / 31°0
Morning35°feels 29°
Afternoon44°feels 38°
Evening36°feels 31°
Overnight33°feels 27°
46 °
Vandalia, Monday, 23 November
Clear. High 46°, low 31°.
Pressure30.33 inHg
Wind10.2 mph N
Humidity31%
Visibility—
Dew point15°
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 Vandalia, 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.