Monthly outlook for Custer, WI: average high 57.2°, average low 41.5°. That is 0.5° above the climate normal for October. Precipitation is expected on 4 days (about 2.0 inches), against a normal of 5 days and 1.4 inches. The warmest day looks like 10 October (79°), the coolest 18 October (29.2°).
57.2°/41.5°
Average high / low
+0.5°
Above normal
4 / 5
Wet days / normal
2.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
7 October – 16 October
62°
57.6°
+2.5°
17 October – 26 October
49.2°
53.4°
-2.3°
27 October – 5 November
at normal
49.1°
—
October records over 66 years
84°1 October 2023All-time high
20.5°30 October 1988All-time low
Climate normals and records are computed from the nearest reference point — Amherst Junction (6 mi).
Thu, 0863° / 44°0
63 °
Custer, Thursday, 8 October
Overcast. High 63°, low 44°.
Pressure30.06 inHg
Wind9.8 mph W
Humidity48%
Visibility6.2 mi
Dew point39°
Fri, 0967° / 45°0
67 °
Custer, Friday, 9 October
Overcast. High 67°, low 45°.
Pressure30.12 inHg
Wind8.7 mph S
Humidity50%
Visibility6.2 mi
Dew point44°
Sat, 1079° / 55°0
79 °
Custer, Saturday, 10 October
Clear. High 79°, low 55°.
Pressure29.94 inHg
Wind12.4 mph S
Humidity51%
Visibility6.2 mi
Dew point57°
Sun, 1176° / 59°0
76 °
Custer, Sunday, 11 October
Clear. High 76°, low 59°.
Pressure29.85 inHg
Wind11.6 mph S
Humidity41%
Visibility—
Dew point49°
Mon, 1266° / 45°0.28
66 °
Custer, Monday, 12 October
Rain. High 66°, low 45°.
Pressure29.80 inHg
Wind11.4 mph N
Humidity69%
Visibility—
Dew point54°
Tue, 1342° / 39°0.14
42 °
Custer, Tuesday, 13 October
Light rain. High 42°, low 39°.
Pressure30.15 inHg
Wind9.5 mph NE
Humidity86%
Visibility—
Dew point38°
Wed, 1451° / 39°0.75
51 °
Custer, Wednesday, 14 October
Heavy rain. High 51°, low 39°.
Pressure30.09 inHg
Wind21.1 mph SE
Humidity63%
Visibility—
Dew point37°
Thu, 1561° / 47°0.81
61 °
Custer, Thursday, 15 October
Rain. High 61°, low 47°.
Pressure29.62 inHg
Wind17.3 mph W
Humidity95%
Visibility—
Dew point56°
Fri, 1644° / 37°0
44 °
Custer, Friday, 16 October
Overcast. High 44°, low 37°.
Pressure30.03 inHg
Wind16 mph W
Humidity56%
Visibility—
Dew point28°
Sat, 1743° / 32°0
43 °
Custer, Saturday, 17 October
Overcast. High 43°, low 32°.
Pressure30.24 inHg
Wind15.2 mph N
Humidity51%
Visibility—
Dew point25°
Sun, 1848° / 29°0
48 °
Custer, Sunday, 18 October
Overcast. High 48°, low 29°.
Pressure30.12 inHg
Wind11.7 mph W
Humidity42%
Visibility—
Dew point21°
Mon, 1953° / 34°0
53 °
Custer, Monday, 19 October
Partly cloudy. High 53°, low 34°.
Pressure30.24 inHg
Wind7 mph E
Humidity46%
Visibility—
Dew point29°
Tue, 2052° / 34°0
52 °
Custer, Tuesday, 20 October
Overcast. High 52°, low 34°.
Pressure30.53 inHg
Wind8.3 mph E
Humidity59%
Visibility—
Dew point34°
Wed, 2147° / 41°0.01
47 °
Custer, Wednesday, 21 October
Light rain. High 47°, low 41°.
Pressure30.30 inHg
Wind6.3 mph W
Humidity82%
Visibility—
Dew point40°
Thu, 2251° / 34°0
51 °
Custer, Thursday, 22 October
Partly cloudy. High 51°, low 34°.
Pressure30.03 inHg
Wind11.3 mph W
Humidity48%
Visibility—
Dew point30°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 2353° / 41°0.17
53 °
Custer, Friday, 23 October
Climate normal for this date — 60-year average.
Average high53°
Average low41°
Average precipitation0.17 in
Chance of precipitation37%
Record high77° (1963)
Record low24° (1969)
Sat, 2452° / 40°0.18
52 °
Custer, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high52°
Average low40°
Average precipitation0.18 in
Chance of precipitation32%
Record high73° (1963)
Record low24° (1981)
Sun, 2552° / 39°0.07
52 °
Custer, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high52°
Average low39°
Average precipitation0.07 in
Chance of precipitation27%
Record high73° (1989)
Record low25° (2020)
Mon, 2651° / 39°0.07
51 °
Custer, Monday, 26 October
Climate normal for this date — 60-year average.
Average high51°
Average low39°
Average precipitation0.07 in
Chance of precipitation17%
Record high73° (1989)
Record low22° (1962)
Tue, 2752° / 38°0.07
52 °
Custer, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.07 in
Chance of precipitation18%
Record high69° (1989)
Record low22° (2020)
Wed, 2850° / 37°0.08
50 °
Custer, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.08 in
Chance of precipitation23%
Record high66° (1974)
Record low26° (1969)
Thu, 2950° / 37°0.06
50 °
Custer, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.06 in
Chance of precipitation25%
Record high78° (2024)
Record low23° (1988)
Fri, 3052° / 38°0.09
52 °
Custer, Friday, 30 October
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.09 in
Chance of precipitation28%
Record high76° (2024)
Record low20° (1988)
Sat, 3150° / 37°0.1
50 °
Custer, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.1 in
Chance of precipitation38%
Record high64° (1971)
Record low24° (1996)
Sun, 0149° / 36°0.16
49 °
Custer, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.16 in
Chance of precipitation33%
Record high68° (1990)
Record low21° (2023)
Mon, 0248° / 36°0.09
48 °
Custer, Monday, 2 November
Climate normal for this date — 60-year average.
Average high48°
Average low36°
Average precipitation0.09 in
Chance of precipitation25%
Record high67° (1990)
Record low16° (1991)
Tue, 0347° / 35°0.06
47 °
Custer, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.06 in
Chance of precipitation20%
Record high68° (1964)
Record low14° (1991)
Wed, 0447° / 35°0.09
47 °
Custer, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.09 in
Chance of precipitation23%
Record high69° (2008)
Record low13° (1991)
Thu, 0547° / 35°0.1
47 °
Custer, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.1 in
Chance of precipitation32%
Record high66° (1975)
Record low17° (1991)
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, WI 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, WI 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.