Monthly outlook for Batavia, IL: average high 66.8°, average low 49.6°. That is 3° above the climate normal for October. Precipitation is expected on 7 days (about 1.1 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 12 October (79.6°), the coolest 18 October (36°).
66.8°/49.6°
Average high / low
+3°
Above normal
7 / 5
Wet days / normal
1.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 October – 17 October
69.4°
62.7°
+3.7°
18 October – 27 October
62.5°
58.2°
+2.4°
28 October – 6 November
at normal
54.2°
—
October records over 66 years
87.1°3 October 2025All-time high
21.9°24 October 1981All-time low
Climate normals and records are computed from the nearest reference point — Aurora (6 mi).
Fri, 0975° / 50°0.08
75 °
Batavia, Friday, 9 October
Rain. High 75°, low 50°.
Pressure30.12 inHg
Wind7.2 mph SE
Humidity55%
Visibility6.2 mi
Dew point51°
Sat, 1074° / 57°0
74 °
Batavia, Saturday, 10 October
Overcast. High 74°, low 57°.
Pressure30.09 inHg
Wind8.1 mph S
Humidity59%
Visibility6.2 mi
Dew point56°
Sun, 1172° / 54°0
72 °
Batavia, Sunday, 11 October
Clear. High 72°, low 54°.
Pressure30.00 inHg
Wind2.1 mph E
Humidity68%
Visibility6.2 mi
Dew point57°
Mon, 1280° / 57°0.08
80 °
Batavia, Monday, 12 October
Light rain. High 80°, low 57°.
Pressure29.83 inHg
Wind10.4 mph SW
Humidity62%
Visibility6.2 mi
Dew point61°
Tue, 1366° / 53°0.2
66 °
Batavia, Tuesday, 13 October
Rain. High 66°, low 53°.
Pressure30.00 inHg
Wind11.7 mph NE
Humidity75%
Visibility—
Dew point53°
Wed, 1465° / 52°0.1
65 °
Batavia, Wednesday, 14 October
Light rain. High 65°, low 52°.
Pressure30.00 inHg
Wind14 mph SE
Humidity74%
Visibility—
Dew point49°
Thu, 1573° / 64°0.25
73 °
Batavia, Thursday, 15 October
Rain. High 73°, low 64°.
Pressure30.00 inHg
Wind14.5 mph S
Humidity64%
Visibility—
Dew point58°
Fri, 1665° / 48°0.08
65 °
Batavia, Friday, 16 October
Light rain. High 65°, low 48°.
Pressure30.27 inHg
Wind14.9 mph NW
Humidity53%
Visibility—
Dew point43°
Sat, 1750° / 39°0
50 °
Batavia, Saturday, 17 October
Clear. High 50°, low 39°.
Pressure30.50 inHg
Wind14.1 mph N
Humidity44%
Visibility—
Dew point27°
Sun, 1854° / 36°0
54 °
Batavia, Sunday, 18 October
Mostly clear. High 54°, low 36°.
Pressure30.56 inHg
Wind6.8 mph N
Humidity38%
Visibility—
Dew point26°
Mon, 1957° / 40°0
57 °
Batavia, Monday, 19 October
Clear. High 57°, low 40°.
Pressure30.47 inHg
Wind9.1 mph S
Humidity44%
Visibility—
Dew point32°
Tue, 2065° / 44°0
65 °
Batavia, Tuesday, 20 October
Mostly clear. High 65°, low 44°.
Pressure30.24 inHg
Wind11.4 mph S
Humidity52%
Visibility—
Dew point43°
Wed, 2164° / 52°0.28
64 °
Batavia, Wednesday, 21 October
Rain. High 64°, low 52°.
Pressure30.06 inHg
Wind11.7 mph SW
Humidity71%
Visibility—
Dew point52°
Thu, 2267° / 49°0
67 °
Batavia, Thursday, 22 October
Clear. High 67°, low 49°.
Pressure30.15 inHg
Wind8.3 mph W
Humidity54%
Visibility—
Dew point46°
Fri, 2368° / 51°0
68 °
Batavia, Friday, 23 October
Clear. High 68°, low 51°.
Pressure30.21 inHg
Wind5.6 mph E
Humidity54%
Visibility—
Dew point47°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2458° / 44°0.11
58 °
Batavia, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high58°
Average low44°
Average precipitation0.11 in
Chance of precipitation38%
Record high78° (1963)
Record low22° (1981)
Sun, 2557° / 43°0.09
57 °
Batavia, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high57°
Average low43°
Average precipitation0.09 in
Chance of precipitation27%
Record high74° (1989)
Record low28° (2006)
Mon, 2656° / 42°0.1
56 °
Batavia, Monday, 26 October
Climate normal for this date — 60-year average.
Average high56°
Average low42°
Average precipitation0.1 in
Chance of precipitation27%
Record high79° (1963)
Record low23° (1962)
Tue, 2756° / 42°0.09
56 °
Batavia, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high56°
Average low42°
Average precipitation0.09 in
Chance of precipitation28%
Record high75° (2014)
Record low29° (1980)
Wed, 2856° / 41°0.05
56 °
Batavia, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high56°
Average low41°
Average precipitation0.05 in
Chance of precipitation20%
Record high74° (1999)
Record low25° (1976)
Thu, 2956° / 41°0.06
56 °
Batavia, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high56°
Average low41°
Average precipitation0.06 in
Chance of precipitation20%
Record high79° (2024)
Record low24° (1980)
Fri, 3057° / 42°0.11
57 °
Batavia, Friday, 30 October
Climate normal for this date — 60-year average.
Average high57°
Average low42°
Average precipitation0.11 in
Chance of precipitation27%
Record high77° (2024)
Record low24° (1988)
Sat, 3156° / 43°0.13
56 °
Batavia, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high56°
Average low43°
Average precipitation0.13 in
Chance of precipitation35%
Record high74° (1974)
Record low26° (2019)
Sun, 0155° / 41°0.17
55 °
Batavia, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high55°
Average low41°
Average precipitation0.17 in
Chance of precipitation35%
Record high73° (2016)
Record low17° (2019)
Mon, 0254° / 40°0.11
54 °
Batavia, Monday, 2 November
Climate normal for this date — 60-year average.
Average high54°
Average low40°
Average precipitation0.11 in
Chance of precipitation35%
Record high75° (1961)
Record low23° (1991)
Tue, 0353° / 38°0.07
53 °
Batavia, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.07 in
Chance of precipitation27%
Record high73° (1987)
Record low17° (1991)
Wed, 0453° / 40°0.09
53 °
Batavia, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high53°
Average low40°
Average precipitation0.09 in
Chance of precipitation23%
Record high71° (2015)
Record low16° (1991)
Thu, 0552° / 39°0.11
52 °
Batavia, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high52°
Average low39°
Average precipitation0.11 in
Chance of precipitation27%
Record high75° (1978)
Record low17° (1991)
Fri, 0652° / 37°0.07
52 °
Batavia, Friday, 6 November
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.07 in
Chance of precipitation27%
Record high71° (1975)
Record low23° (1991)
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Batavia, IL are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in Batavia, IL since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.