Monthly outlook for Sag Bridge, IL: average high 59.2°, average low 43.8°. That is 1.3° above the climate normal for October. Precipitation is expected on 3 days (about 0.8 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 21 October (71.3°), the coolest 31 October (34.3°).
59.2°/43.8°
Average high / low
+1.3°
Above normal
3 / 5
Wet days / normal
0.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
20 October – 29 October
62.5°
58°
+2.5°
30 October – 8 November
53.8°
54°
-0.1°
9 November – 18 November
at normal
48.4°
—
October records over 66 years
87.8°3 October 2025All-time high
25°26 October 1962All-time low
Climate normals and records are computed from the nearest reference point — Chicago Ridge (8 mi).
Wed, 2171° / 43°0
71 °
Sag Bridge, Wednesday, 21 October
Clear. High 71°, low 43°.
Pressure30.27 inHg
Wind2.8 mph SW
Humidity56%
Visibility6.2 mi
Dew point48°
Thu, 2268° / 48°0
68 °
Sag Bridge, Thursday, 22 October
Mostly clear. High 68°, low 48°.
Pressure30.30 inHg
Wind3.5 mph NE
Humidity69%
Visibility6.2 mi
Dew point56°
Fri, 2365° / 48°0
65 °
Sag Bridge, Friday, 23 October
Clear. High 65°, low 48°.
Pressure30.36 inHg
Wind3.2 mph SE
Humidity74%
Visibility6.2 mi
Dew point53°
Sat, 2467° / 48°0
67 °
Sag Bridge, Saturday, 24 October
Mostly clear. High 67°, low 48°.
Pressure30.36 inHg
Wind8.1 mph S
Humidity63%
Visibility—
Dew point49°
Sun, 2570° / 53°0
70 °
Sag Bridge, Sunday, 25 October
Partly cloudy. High 70°, low 53°.
Pressure30.36 inHg
Wind7.2 mph SW
Humidity60%
Visibility—
Dew point52°
Mon, 2669° / 48°0.1
69 °
Sag Bridge, Monday, 26 October
Light rain. High 69°, low 48°.
Pressure30.06 inHg
Wind11.9 mph SW
Humidity40%
Visibility—
Dew point42°
Tue, 2748° / 40°0.13
48 °
Sag Bridge, Tuesday, 27 October
Light rain. High 48°, low 40°.
Pressure30.36 inHg
Wind13.5 mph NW
Humidity34%
Visibility—
Dew point19°
Wed, 2847° / 35°0
47 °
Sag Bridge, Wednesday, 28 October
Clear. High 47°, low 35°.
Pressure30.39 inHg
Wind9.7 mph SW
Humidity33%
Visibility—
Dew point17°
Thu, 2951° / 40°0
51 °
Sag Bridge, Thursday, 29 October
Clear. High 51°, low 40°.
Pressure30.06 inHg
Wind11.9 mph W
Humidity42%
Visibility—
Dew point27°
Fri, 3045° / 36°0
45 °
Sag Bridge, Friday, 30 October
Clear. High 45°, low 36°.
Pressure30.39 inHg
Wind11.4 mph NW
Humidity36%
Visibility—
Dew point17°
Sat, 3150° / 34°0
50 °
Sag Bridge, Saturday, 31 October
Overcast. High 50°, low 34°.
Pressure30.27 inHg
Wind11 mph SW
Humidity34%
Visibility—
Dew point19°
Sun, 0150° / 43°0
50 °
Sag Bridge, Sunday, 1 November
Overcast. High 50°, low 43°.
Pressure30.12 inHg
Wind8.6 mph SW
Humidity79%
Visibility—
Dew point41°
Mon, 0260° / 43°0
60 °
Sag Bridge, Monday, 2 November
Clear. High 60°, low 43°.
Pressure30.30 inHg
Wind7 mph S
Humidity52%
Visibility—
Dew point38°
Tue, 0361° / 47°0
61 °
Sag Bridge, Tuesday, 3 November
Overcast. High 61°, low 47°.
Pressure30.21 inHg
Wind11.4 mph S
Humidity43%
Visibility—
Dew point35°
Wed, 0457° / 52°0.54
57 °
Sag Bridge, Wednesday, 4 November
Rain. High 57°, low 52°.
Pressure29.94 inHg
Wind11 mph S
Humidity93%
Visibility—
Dew point50°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 0553° / 40°0.12
53 °
Sag Bridge, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high53°
Average low40°
Average precipitation0.12 in
Chance of precipitation32%
Record high75° (1978)
Record low19° (1991)
Fri, 0653° / 39°0.07
53 °
Sag Bridge, Friday, 6 November
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.07 in
Chance of precipitation30%
Record high72° (1975)
Record low25° (1991)
Sat, 0752° / 39°0.06
52 °
Sag Bridge, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high52°
Average low39°
Average precipitation0.06 in
Chance of precipitation20%
Record high70° (2020)
Record low20° (1991)
Sun, 0852° / 39°0.06
52 °
Sag Bridge, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high52°
Average low39°
Average precipitation0.06 in
Chance of precipitation20%
Record high74° (2020)
Record low15° (1991)
Mon, 0952° / 39°0.13
52 °
Sag Bridge, Monday, 9 November
Climate normal for this date — 60-year average.
Average high52°
Average low39°
Average precipitation0.13 in
Chance of precipitation35%
Record high72° (2020)
Record low19° (1991)
Tue, 1051° / 38°0.13
51 °
Sag Bridge, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.13 in
Chance of precipitation40%
Record high73° (2020)
Record low18° (2018)
Wed, 1148° / 36°0.08
48 °
Sag Bridge, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high48°
Average low36°
Average precipitation0.08 in
Chance of precipitation30%
Record high71° (1964)
Record low17° (2019)
Thu, 1247° / 35°0.06
47 °
Sag Bridge, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.06 in
Chance of precipitation23%
Record high68° (1964)
Record low5° (2019)
Fri, 1347° / 34°0.05
47 °
Sag Bridge, Friday, 13 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.05 in
Chance of precipitation22%
Record high69° (1999)
Record low2° (2019)
Sat, 1448° / 35°0.07
48 °
Sag Bridge, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.07 in
Chance of precipitation33%
Record high70° (1971)
Record low14° (1986)
Sun, 1548° / 36°0.1
48 °
Sag Bridge, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high48°
Average low36°
Average precipitation0.1 in
Chance of precipitation32%
Record high68° (2025)
Record low20° (1982)
Mon, 1647° / 35°0.05
47 °
Sag Bridge, Monday, 16 November
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.05 in
Chance of precipitation25%
Record high63° (1988)
Record low22° (1997)
Tue, 1748° / 35°0.09
48 °
Sag Bridge, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.09 in
Chance of precipitation30%
Record high69° (2016)
Record low16° (2014)
Wed, 1848° / 36°0.15
48 °
Sag Bridge, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high48°
Average low36°
Average precipitation0.15 in
Chance of precipitation30%
Record high67° (2016)
Record low12° (2014)
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 Sag Bridge, 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 Sag Bridge, 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.