As of 02:38 CDT

Weather in Custer, IL

52°Current weather

Custer, Thursday, 8 October, 02:38

Clear. Feels like 51°. High 74°, low 51°.

Pressure29.97 inHg
Wind0 mph N
Humidity74%
Visibility6.2 mi
Dew point44°

Monthly outlook for Custer, IL: average high 69.5°, average low 50.7°. That is 3.4° above the climate normal for October. Precipitation is expected on 3 days (about 0.3 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 15 October (90.4°), the coolest 21 October (39.8°).

69.5°/50.7°
Average high / low
+3.4°
Above normal
3 / 5
Wet days / normal
0.3 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
8 October – 17 October74.9°64.8°+5.6°
18 October – 27 October60.4°60°+0.3°
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, 0979° / 51°0.02Light rain
79 °Light rain

Custer, Friday, 9 October

Light rain. High 79°, low 51°.

Pressure30.09 inHg
Wind8.8 mph S
Humidity49%
Visibility6.2 mi
Dew point52°
Sat, 1082° / 61°0Clear
82 °Clear

Custer, Saturday, 10 October

Clear. High 82°, low 61°.

Pressure30.12 inHg
Wind6.4 mph S
Humidity46%
Visibility6.2 mi
Dew point56°
Sun, 1172° / 60°0.04Light rain
72 °Light rain

Custer, Sunday, 11 October

Light rain. High 72°, low 60°.

Pressure29.97 inHg
Wind7.4 mph E
Humidity64%
Visibility6.2 mi
Dew point56°
Mon, 1283° / 57°0Partly cloudy
83 °Partly cloudy

Custer, Monday, 12 October

Partly cloudy. High 83°, low 57°.

Pressure29.80 inHg
Wind12.3 mph S
Humidity51%
Visibility—
Dew point58°
Tue, 1371° / 49°0Partly cloudy
71 °Partly cloudy

Custer, Tuesday, 13 October

Partly cloudy. High 71°, low 49°.

Pressure30.03 inHg
Wind14.4 mph NW
Humidity54%
Visibility—
Dew point44°
Wed, 1461° / 44°0Overcast
61 °Overcast

Custer, Wednesday, 14 October

Overcast. High 61°, low 44°.

Pressure30.06 inHg
Wind14.2 mph SE
Humidity40%
Visibility—
Dew point34°
Thu, 1590° / 61°0.06Light rain
90 °Light rain

Custer, Thursday, 15 October

Light rain. High 90°, low 61°.

Pressure29.80 inHg
Wind22.4 mph S
Humidity51%
Visibility—
Dew point64°
Fri, 1682° / 58°0.18Light rain
82 °Light rain

Custer, Friday, 16 October

Light rain. High 82°, low 58°.

Pressure29.88 inHg
Wind21.8 mph SW
Humidity67%
Visibility—
Dew point66°
Sat, 1754° / 46°0Overcast
54 °Overcast

Custer, Saturday, 17 October

Overcast. High 54°, low 46°.

Pressure30.18 inHg
Wind14 mph W
Humidity52%
Visibility—
Dew point35°
Sun, 1855° / 45°0Overcast
55 °Overcast

Custer, Sunday, 18 October

Overcast. High 55°, low 45°.

Pressure30.30 inHg
Wind8.2 mph NW
Humidity49%
Visibility—
Dew point33°
Mon, 1963° / 43°0Overcast
63 °Overcast

Custer, Monday, 19 October

Overcast. High 63°, low 43°.

Pressure30.27 inHg
Wind8 mph S
Humidity42%
Visibility—
Dew point35°
Tue, 2064° / 47°0Clear
64 °Clear

Custer, Tuesday, 20 October

Clear. High 64°, low 47°.

Pressure30.12 inHg
Wind12.2 mph N
Humidity52%
Visibility—
Dew point44°
Wed, 2158° / 40°0Clear
58 °Clear

Custer, Wednesday, 21 October

Clear. High 58°, low 40°.

Pressure30.24 inHg
Wind8.1 mph SE
Humidity47%
Visibility—
Dew point34°
Thu, 2268° / 44°0Overcast
68 °Overcast

Custer, Thursday, 22 October

Overcast. High 68°, low 44°.

Pressure29.74 inHg
Wind16 mph S
Humidity43%
Visibility—
Dew point39°
Fri, 2355° / 52°0.02Light rain
55 °Light rain

Custer, Friday, 23 October

Light rain. High 55°, low 52°.

Pressure29.74 inHg
Wind14.1 mph S
Humidity68%
Visibility—
Dew point44°
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.