As of 07:38 CDT

Weather in Flossmoor, IL

37°Current weather

Flossmoor, Tuesday, 20 October, 07:38

Clear. Feels like 37°. High 70°, low 37°.

Pressure30.39 inHg
Wind0 mph N
Humidity100%
Visibility6.2 mi
Dew point37°

Monthly outlook for Flossmoor, IL: average high 58.9°, average low 42.4°. That is 1.4° above the climate normal for October. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 21 October (70.9°), the coolest 29 October (30.7°).

58.9°/42.4°
Average high / low
+1.4°
Above normal
1 / 5
Wet days / normal
0.1 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
20 October – 29 October62.5°57.5°+2.8°
30 October – 8 November53°53.6°-0.4°
9 November – 18 Novemberat normal48.1°—

October records over 66 years

88.5°3 October 2025All-time high
26.1°26 October 1962All-time low

Climate normals and records are computed from the nearest reference point — Blue Island (8 mi).

Wed, 2171° / 42°0Clear
71 °Clear

Flossmoor, Wednesday, 21 October

Clear. High 71°, low 42°.

Pressure30.27 inHg
Wind2.4 mph SW
Humidity55%
Visibility6.2 mi
Dew point48°
Thu, 2269° / 49°0Clear
69 °Clear

Flossmoor, Thursday, 22 October

Clear. High 69°, low 49°.

Pressure30.30 inHg
Wind1.9 mph NE
Humidity69%
Visibility6.2 mi
Dew point56°
Fri, 2365° / 48°0Clear
65 °Clear

Flossmoor, Friday, 23 October

Clear. High 65°, low 48°.

Pressure30.36 inHg
Wind4.6 mph SE
Humidity71%
Visibility6.2 mi
Dew point53°
Sat, 2465° / 46°0Clear
65 °Clear

Flossmoor, Saturday, 24 October

Clear. High 65°, low 46°.

Pressure30.39 inHg
Wind7.1 mph SE
Humidity56%
Visibility—
Dew point45°
Sun, 2571° / 52°0Overcast
71 °Overcast

Flossmoor, Sunday, 25 October

Overcast. High 71°, low 52°.

Pressure30.36 inHg
Wind7.4 mph S
Humidity57%
Visibility—
Dew point50°
Mon, 2671° / 55°0.04Light rain
71 °Light rain

Flossmoor, Monday, 26 October

Light rain. High 71°, low 55°.

Pressure30.12 inHg
Wind13.3 mph SW
Humidity37%
Visibility—
Dew point42°
Tue, 2751° / 40°0.01Light rain
51 °Light rain

Flossmoor, Tuesday, 27 October

Light rain. High 51°, low 40°.

Pressure30.33 inHg
Wind14.8 mph NW
Humidity36%
Visibility—
Dew point24°
Wed, 2842° / 32°0Clear
42 °Clear

Flossmoor, Wednesday, 28 October

Clear. High 42°, low 32°.

Pressure30.47 inHg
Wind11.3 mph NW
Humidity25%
Visibility—
Dew point6°
Thu, 2951° / 31°0Clear
51 °Clear

Flossmoor, Thursday, 29 October

Clear. High 51°, low 31°.

Pressure30.15 inHg
Wind14.7 mph SW
Humidity31%
Visibility—
Dew point17°
Fri, 3053° / 43°0Overcast
53 °Overcast

Flossmoor, Friday, 30 October

Overcast. High 53°, low 43°.

Pressure30.03 inHg
Wind10.3 mph SW
Humidity54%
Visibility—
Dew point34°
Sat, 3154° / 43°0Clear
54 °Clear

Flossmoor, Saturday, 31 October

Clear. High 54°, low 43°.

Pressure30.12 inHg
Wind8.4 mph NW
Humidity40%
Visibility—
Dew point29°
Sun, 0153° / 41°0Overcast
53 °Overcast

Flossmoor, Sunday, 1 November

Overcast. High 53°, low 41°.

Pressure30.30 inHg
Wind7.7 mph NE
Humidity35%
Visibility—
Dew point24°
Mon, 0250° / 40°0Mostly clear
50 °Mostly clear

Flossmoor, Monday, 2 November

Mostly clear. High 50°, low 40°.

Pressure30.24 inHg
Wind6.8 mph NE
Humidity37%
Visibility—
Dew point24°
Tue, 0354° / 39°0Clear
54 °Clear

Flossmoor, Tuesday, 3 November

Clear. High 54°, low 39°.

Pressure30.18 inHg
Wind3 mph W
Humidity32%
Visibility—
Dew point22°
Wed, 0454° / 40°0Partly cloudy
54 °Partly cloudy

Flossmoor, Wednesday, 4 November

Partly cloudy. High 54°, low 40°.

Pressure30.06 inHg
Wind7.2 mph SW
Humidity51%
Visibility—
Dew point34°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 0553° / 41°0.13Climate normal
53 °Climate normal

Flossmoor, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high53°
Average low41°
Average precipitation0.13 in
Chance of precipitation32%
Record high74° (1978)
Record low20° (1991)
Fri, 0653° / 39°0.07Climate normal
53 °Climate normal

Flossmoor, 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, 0751° / 39°0.06Climate normal
51 °Climate normal

Flossmoor, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high51°
Average low39°
Average precipitation0.06 in
Chance of precipitation20%
Record high70° (2020)
Record low22° (1991)
Sun, 0851° / 39°0.06Climate normal
51 °Climate normal

Flossmoor, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high51°
Average low39°
Average precipitation0.06 in
Chance of precipitation20%
Record high74° (2020)
Record low17° (1991)
Mon, 0952° / 39°0.13Climate normal
52 °Climate normal

Flossmoor, 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 low20° (1991)
Tue, 1050° / 39°0.13Climate normal
50 °Climate normal

Flossmoor, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high50°
Average low39°
Average precipitation0.13 in
Chance of precipitation40%
Record high73° (2020)
Record low18° (2018)
Wed, 1148° / 36°0.08Climate normal
48 °Climate normal

Flossmoor, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high48°
Average low36°
Average precipitation0.08 in
Chance of precipitation32%
Record high70° (1964)
Record low19° (2019)
Thu, 1247° / 35°0.06Climate normal
47 °Climate normal

Flossmoor, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high47°
Average low35°
Average precipitation0.06 in
Chance of precipitation23%
Record high67° (1964)
Record low6° (2019)
Fri, 1347° / 35°0.05Climate normal
47 °Climate normal

Flossmoor, Friday, 13 November

Climate normal for this date — 60-year average.

Average high47°
Average low35°
Average precipitation0.05 in
Chance of precipitation20%
Record high68° (1999)
Record low3° (2019)
Sat, 1448° / 35°0.07Climate normal
48 °Climate normal

Flossmoor, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high48°
Average low35°
Average precipitation0.07 in
Chance of precipitation33%
Record high68° (1971)
Record low15° (1986)
Sun, 1547° / 36°0.1Climate normal
47 °Climate normal

Flossmoor, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high47°
Average low36°
Average precipitation0.1 in
Chance of precipitation32%
Record high67° (2025)
Record low21° (1982)
Mon, 1647° / 35°0.05Climate normal
47 °Climate normal

Flossmoor, Monday, 16 November

Climate normal for this date — 60-year average.

Average high47°
Average low35°
Average precipitation0.05 in
Chance of precipitation25%
Record high63° (2023)
Record low22° (1997)
Tue, 1747° / 36°0.09Climate normal
47 °Climate normal

Flossmoor, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high47°
Average low36°
Average precipitation0.09 in
Chance of precipitation30%
Record high68° (2016)
Record low17° (2014)
Wed, 1848° / 36°0.15Climate normal
48 °Climate normal

Flossmoor, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high48°
Average low36°
Average precipitation0.15 in
Chance of precipitation30%
Record high66° (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 Flossmoor, 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 Flossmoor, 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.