Monthly outlook for Browns Mill, IL: average high 58.7°, average low 41°. That is 1.7° above the climate normal for October. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 21 October (70.3°), the coolest 28 October (24.2°).
58.7°/41°
Average high / low
+1.7°
Above normal
1 / 5
Wet days / normal
0.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
19 October – 28 October
61.1°
56.9°
+2.3°
29 October – 7 November
54.7°
52.5°
+1.2°
8 November – 17 November
at normal
46.7°
—
October records over 66 years
86.4°3 October 2025All-time high
21.4°30 October 1988All-time low
Climate normals and records are computed from the nearest reference point — Freeport (6 mi).
Tue, 2069° / 41°0
69 °
Browns Mill, Tuesday, 20 October
Clear. High 69°, low 41°.
Pressure30.36 inHg
Wind5.4 mph SE
Humidity48%
Visibility6.2 mi
Dew point44°
Wed, 2170° / 43°0
70 °
Browns Mill, Wednesday, 21 October
Clear. High 70°, low 43°.
Pressure30.27 inHg
Wind5.3 mph SW
Humidity54%
Visibility6.2 mi
Dew point49°
Thu, 2268° / 48°0
68 °
Browns Mill, Thursday, 22 October
Clear. High 68°, low 48°.
Pressure30.33 inHg
Wind4.8 mph E
Humidity71%
Visibility6.2 mi
Dew point56°
Fri, 2364° / 48°0
64 °
Browns Mill, Friday, 23 October
Overcast. High 64°, low 48°.
Pressure30.36 inHg
Wind6.7 mph SE
Humidity66%
Visibility6.2 mi
Dew point48°
Sat, 2464° / 47°0
64 °
Browns Mill, Saturday, 24 October
Overcast. High 64°, low 47°.
Pressure30.36 inHg
Wind9.6 mph S
Humidity58%
Visibility—
Dew point44°
Sun, 2566° / 51°0
66 °
Browns Mill, Sunday, 25 October
Overcast. High 66°, low 51°.
Pressure30.36 inHg
Wind8.4 mph SW
Humidity57%
Visibility—
Dew point48°
Mon, 2655° / 44°0
55 °
Browns Mill, Monday, 26 October
Overcast. High 55°, low 44°.
Pressure30.33 inHg
Wind8.8 mph NE
Humidity36%
Visibility—
Dew point27°
Tue, 2747° / 31°0.11
47 °
Browns Mill, Tuesday, 27 October
Light rain. High 47°, low 31°.
Pressure30.33 inHg
Wind18.1 mph NW
Humidity40%
Visibility—
Dew point22°
Wed, 2840° / 24°0
40 °
Browns Mill, Wednesday, 28 October
Clear. High 40°, low 24°.
Pressure30.47 inHg
Wind10.8 mph W
Humidity37%
Visibility—
Dew point12°
Thu, 2948° / 28°0
48 °
Browns Mill, Thursday, 29 October
Partly cloudy. High 48°, low 28°.
Pressure30.21 inHg
Wind10.8 mph W
Humidity35%
Visibility—
Dew point18°
Fri, 3054° / 34°0
54 °
Browns Mill, Friday, 30 October
Clear. High 54°, low 34°.
Pressure30.09 inHg
Wind11.7 mph SW
Humidity40%
Visibility—
Dew point26°
Sat, 3160° / 41°0
60 °
Browns Mill, Saturday, 31 October
Mostly clear. High 60°, low 41°.
Pressure30.12 inHg
Wind10.4 mph S
Humidity43%
Visibility—
Dew point33°
Sun, 0158° / 48°0.01
58 °
Browns Mill, Sunday, 1 November
Light rain. High 58°, low 48°.
Pressure30.06 inHg
Wind11.3 mph S
Humidity41%
Visibility—
Dew point33°
Mon, 0252° / 47°0
52 °
Browns Mill, Monday, 2 November
Overcast. High 52°, low 47°.
Pressure29.94 inHg
Wind11 mph NW
Humidity87%
Visibility—
Dew point48°
Tue, 0355° / 43°0
55 °
Browns Mill, Tuesday, 3 November
Overcast. High 55°, low 43°.
Pressure29.97 inHg
Wind11 mph NW
Humidity61%
Visibility—
Dew point40°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 0451° / 39°0.09
51 °
Browns Mill, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high51°
Average low39°
Average precipitation0.09 in
Chance of precipitation28%
Record high70° (2015)
Record low13° (1991)
Thu, 0551° / 37°0.1
51 °
Browns Mill, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.1 in
Chance of precipitation22%
Record high70° (1978)
Record low18° (1991)
Fri, 0651° / 36°0.08
51 °
Browns Mill, Friday, 6 November
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.08 in
Chance of precipitation35%
Record high69° (2020)
Record low20° (1991)
Sat, 0750° / 36°0.03
50 °
Browns Mill, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.03 in
Chance of precipitation18%
Record high68° (2020)
Record low10° (1991)
Sun, 0850° / 36°0.05
50 °
Browns Mill, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.05 in
Chance of precipitation15%
Record high71° (2020)
Record low13° (1991)
Mon, 0949° / 36°0.12
49 °
Browns Mill, Monday, 9 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.12 in
Chance of precipitation35%
Record high73° (2020)
Record low17° (1991)
Tue, 1048° / 35°0.09
48 °
Browns Mill, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.09 in
Chance of precipitation30%
Record high71° (2022)
Record low15° (2017)
Wed, 1146° / 32°0.07
46 °
Browns Mill, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.07 in
Chance of precipitation27%
Record high69° (1964)
Record low12° (2019)
Thu, 1245° / 31°0.06
45 °
Browns Mill, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high45°
Average low31°
Average precipitation0.06 in
Chance of precipitation28%
Record high64° (1964)
Record low2° (2019)
Fri, 1345° / 31°0.04
45 °
Browns Mill, Friday, 13 November
Climate normal for this date — 60-year average.
Average high45°
Average low31°
Average precipitation0.04 in
Chance of precipitation17%
Record high69° (1999)
Record low7° (1986)
Sat, 1446° / 32°0.06
46 °
Browns Mill, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.06 in
Chance of precipitation32%
Record high67° (2025)
Record low14° (1986)
Sun, 1546° / 33°0.07
46 °
Browns Mill, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.07 in
Chance of precipitation27%
Record high68° (2025)
Record low9° (1995)
Mon, 1646° / 32°0.06
46 °
Browns Mill, Monday, 16 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.06 in
Chance of precipitation20%
Record high62° (1988)
Record low17° (2019)
Tue, 1746° / 33°0.11
46 °
Browns Mill, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.11 in
Chance of precipitation22%
Record high70° (2016)
Record low14° (2005)
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 Browns Mill, 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 Browns Mill, 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.