10-day forecast for St. Augustine, IL: 36° to 78°, with precipitation expected on 1 day. The table below breaks each day into morning, afternoon, evening and overnight.
78°
Best day: Sunday, October 25
54°
Worst day: Friday, October 16
Tap any day below to see morning, afternoon, evening and overnight.
Sat, 1757° / 36°0
Morning38°feels 35°
Afternoon54°feels 51°
Evening47°feels 45°
Overnight41°feels 37°
57 °
St. Augustine, Saturday, 17 October
Clear. High 57°, low 36°.
Pressure30.56 inHg
Wind3 mph SW
Humidity45%
Visibility6.2 mi
Dew point31°
Sun, 1863° / 42°0
Morning43°feels 38°
Afternoon63°feels 61°
Evening52°feels 50°
Overnight43°feels 39°
63 °
St. Augustine, Sunday, 18 October
Clear. High 63°, low 42°.
Pressure30.45 inHg
Wind11.9 mph S
Humidity49%
Visibility6.2 mi
Dew point40°
Mon, 1966° / 42°0
Morning44°feels 42°
Afternoon65°feels 64°
Evening53°feels 51°
Overnight46°feels 43°
66 °
St. Augustine, Monday, 19 October
Partly cloudy. High 66°, low 42°.
Pressure30.39 inHg
Wind5.8 mph S
Humidity52%
Visibility6.2 mi
Dew point44°
Tue, 2069° / 44°0
Morning49°feels 48°
Afternoon68°feels 67°
Evening58°feels 57°
Overnight48°feels 47°
69 °
St. Augustine, Tuesday, 20 October
Clear. High 69°, low 44°.
Pressure30.33 inHg
Wind5.5 mph S
Humidity53%
Visibility6.2 mi
Dew point46°
Wed, 2170° / 48°0.07
Morning53°feels 52°
Afternoon65°feels 64°
Evening60°feels 58°
Overnight55°feels 54°
70 °
St. Augustine, Wednesday, 21 October
Light rain. High 70°, low 48°.
Pressure30.27 inHg
Wind6.3 mph S
Humidity59%
Visibility—
Dew point49°
Thu, 2273° / 51°0
Morning57°feels 55°
Afternoon70°feels 69°
Evening63°feels 62°
Overnight59°feels 57°
73 °
St. Augustine, Thursday, 22 October
Clear. High 73°, low 51°.
Pressure30.18 inHg
Wind8 mph S
Humidity45%
Visibility—
Dew point46°
Fri, 2374° / 56°0
Morning61°feels 59°
Afternoon71°feels 70°
Evening64°feels 62°
Overnight61°feels 59°
74 °
St. Augustine, Friday, 23 October
Overcast. High 74°, low 56°.
Pressure30.15 inHg
Wind7.8 mph SE
Humidity35%
Visibility—
Dew point41°
Sat, 2477° / 58°0
Morning63°feels 61°
Afternoon73°feels 72°
Evening66°feels 64°
Overnight63°feels 61°
77 °
St. Augustine, Saturday, 24 October
Partly cloudy. High 77°, low 58°.
Pressure30.21 inHg
Wind10.1 mph S
Humidity34%
Visibility—
Dew point42°
Sun, 2578° / 57°0
Morning63°feels 61°
Afternoon74°feels 73°
Evening67°feels 66°
Overnight63°feels 62°
78 °
St. Augustine, Sunday, 25 October
Overcast. High 78°, low 57°.
Pressure30.15 inHg
Wind12 mph S
Humidity35%
Visibility—
Dew point44°
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 St. Augustine, 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.