As of 09:48 CDT

Weather in Custer, IL

62°Current weather

Custer, Thursday, 8 October, 09:48

Overcast. Feels like 61°. High 75°, low 50°.

Pressure30.09 inHg
Wind0 mph N
Humidity58%
Visibility6.2 mi
Dew point47°

Monthly outlook for Custer, IL: average high 71.3°, average low 53.4°. That is 4.4° above the climate normal for October. Precipitation is expected on 4 days (about 1.4 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 15 October (88.7°), the coolest 18 October (41.8°).

71.3°/53.4°
Average high / low
+4.4°
Above normal
4 / 5
Wet days / normal
1.4 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
8 October – 17 October75.1°64.8°+5.7°
18 October – 27 October65.1°60°+2.9°
28 October – 6 Novemberat normal56.1°—

October records over 66 years

89.2°7 October 2007All-time high
21.9°22 October 1976All-time low

Climate normals and records are computed from the nearest reference point — Toluca (2 mi).

Fri, 0977° / 51°0.01Light rain
77 °Light rain

Custer, Friday, 9 October

Light rain. High 77°, low 51°.

Pressure30.09 inHg
Wind6.8 mph SE
Humidity52%
Visibility6.2 mi
Dew point53°
Sat, 1080° / 60°0Overcast
80 °Overcast

Custer, Saturday, 10 October

Overcast. High 80°, low 60°.

Pressure30.09 inHg
Wind6.8 mph S
Humidity55%
Visibility6.2 mi
Dew point57°
Sun, 1174° / 57°0Clear
74 °Clear

Custer, Sunday, 11 October

Clear. High 74°, low 57°.

Pressure29.94 inHg
Wind3 mph NE
Humidity64%
Visibility6.2 mi
Dew point58°
Mon, 1283° / 59°0Overcast
83 °Overcast

Custer, Monday, 12 October

Overcast. High 83°, low 59°.

Pressure29.83 inHg
Wind10.6 mph SW
Humidity51%
Visibility—
Dew point59°
Tue, 1380° / 64°0.02Light rain
80 °Light rain

Custer, Tuesday, 13 October

Light rain. High 80°, low 64°.

Pressure29.85 inHg
Wind9.3 mph NE
Humidity65%
Visibility—
Dew point66°
Wed, 1465° / 54°0.08Light rain
65 °Light rain

Custer, Wednesday, 14 October

Light rain. High 65°, low 54°.

Pressure30.00 inHg
Wind13.8 mph E
Humidity74%
Visibility—
Dew point47°
Thu, 1589° / 72°0.83Heavy rain
89 °Heavy rain

Custer, Thursday, 15 October

Heavy rain. High 89°, low 72°.

Pressure29.83 inHg
Wind19.9 mph SW
Humidity46%
Visibility—
Dew point63°
Fri, 1671° / 52°0.2Rain
71 °Rain

Custer, Friday, 16 October

Rain. High 71°, low 52°.

Pressure30.24 inHg
Wind14 mph NW
Humidity62%
Visibility—
Dew point47°
Sat, 1757° / 43°0Partly cloudy
57 °Partly cloudy

Custer, Saturday, 17 October

Partly cloudy. High 57°, low 43°.

Pressure30.62 inHg
Wind13.8 mph NE
Humidity53%
Visibility—
Dew point37°
Sun, 1857° / 42°0Overcast
57 °Overcast

Custer, Sunday, 18 October

Overcast. High 57°, low 42°.

Pressure30.47 inHg
Wind8.4 mph SE
Humidity40%
Visibility—
Dew point30°
Mon, 1972° / 49°0.01Light rain
72 °Light rain

Custer, Monday, 19 October

Light rain. High 72°, low 49°.

Pressure30.18 inHg
Wind14.5 mph S
Humidity59%
Visibility—
Dew point49°
Tue, 2074° / 57°0.01Light rain
74 °Light rain

Custer, Tuesday, 20 October

Light rain. High 74°, low 57°.

Pressure30.12 inHg
Wind12.3 mph SW
Humidity53%
Visibility—
Dew point52°
Wed, 2169° / 53°0Clear
69 °Clear

Custer, Wednesday, 21 October

Clear. High 69°, low 53°.

Pressure30.09 inHg
Wind8.9 mph W
Humidity35%
Visibility—
Dew point38°
Thu, 2260° / 50°0.19Light rain
60 °Light rain

Custer, Thursday, 22 October

Light rain. High 60°, low 50°.

Pressure29.91 inHg
Wind18.8 mph W
Humidity82%
Visibility—
Dew point50°
Fri, 2358° / 42°0Clear
58 °Clear

Custer, Friday, 23 October

Clear. High 58°, low 42°.

Pressure30.18 inHg
Wind15.1 mph W
Humidity45%
Visibility—
Dew point33°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2459° / 45°0.12Climate normal
59 °Climate normal

Custer, Saturday, 24 October

Climate normal for this date — 60-year average.

Average high59°
Average low45°
Average precipitation0.12 in
Chance of precipitation35%
Record high80° (1963)
Record low23° (1981)
Sun, 2559° / 43°0.1Climate normal
59 °Climate normal

Custer, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high59°
Average low43°
Average precipitation0.1 in
Chance of precipitation28%
Record high76° (2012)
Record low28° (2013)
Mon, 2658° / 43°0.11Climate normal
58 °Climate normal

Custer, Monday, 26 October

Climate normal for this date — 60-year average.

Average high58°
Average low43°
Average precipitation0.11 in
Chance of precipitation28%
Record high80° (1963)
Record low23° (1962)
Tue, 2758° / 43°0.08Climate normal
58 °Climate normal

Custer, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high58°
Average low43°
Average precipitation0.08 in
Chance of precipitation28%
Record high76° (2014)
Record low29° (1997)
Wed, 2857° / 42°0.04Climate normal
57 °Climate normal

Custer, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high57°
Average low42°
Average precipitation0.04 in
Chance of precipitation22%
Record high75° (1999)
Record low25° (1976)
Thu, 2958° / 42°0.08Climate normal
58 °Climate normal

Custer, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high58°
Average low42°
Average precipitation0.08 in
Chance of precipitation25%
Record high79° (2024)
Record low23° (1980)
Fri, 3059° / 43°0.11Climate normal
59 °Climate normal

Custer, Friday, 30 October

Climate normal for this date — 60-year average.

Average high59°
Average low43°
Average precipitation0.11 in
Chance of precipitation27%
Record high80° (1971)
Record low24° (1988)
Sat, 3158° / 43°0.15Climate normal
58 °Climate normal

Custer, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high58°
Average low43°
Average precipitation0.15 in
Chance of precipitation42%
Record high75° (1974)
Record low24° (2019)
Sun, 0157° / 42°0.18Climate normal
57 °Climate normal

Custer, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high57°
Average low42°
Average precipitation0.18 in
Chance of precipitation33%
Record high77° (2016)
Record low22° (2019)
Mon, 0256° / 41°0.09Climate normal
56 °Climate normal

Custer, Monday, 2 November

Climate normal for this date — 60-year average.

Average high56°
Average low41°
Average precipitation0.09 in
Chance of precipitation33%
Record high76° (1961)
Record low24° (1991)
Tue, 0355° / 39°0.08Climate normal
55 °Climate normal

Custer, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high55°
Average low39°
Average precipitation0.08 in
Chance of precipitation27%
Record high75° (1964)
Record low17° (1991)
Wed, 0454° / 41°0.08Climate normal
54 °Climate normal

Custer, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high54°
Average low41°
Average precipitation0.08 in
Chance of precipitation22%
Record high75° (1978)
Record low17° (1991)
Thu, 0554° / 39°0.11Climate normal
54 °Climate normal

Custer, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high54°
Average low39°
Average precipitation0.11 in
Chance of precipitation22%
Record high76° (1978)
Record low19° (1991)
Fri, 0654° / 38°0.08Climate normal
54 °Climate normal

Custer, Friday, 6 November

Climate normal for this date — 60-year average.

Average high54°
Average low38°
Average precipitation0.08 in
Chance of precipitation30%
Record high71° (2020)
Record low24° (1973)

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 Custer, 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 Custer, 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.