Monthly outlook for Colby, WI: average high 55.6°, average low 39.4°. That is 1.1° above the climate normal for October. Precipitation is expected on 5 days (about 1.8 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 10 October (79.5°), the coolest 18 October (21.8°).
55.6°/39.4°
Average high / low
+1.1°
Above normal
5 / 5
Wet days / normal
1.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
10 October – 19 October
59.4°
54.9°
+2.5°
20 October – 29 October
49.1°
50.8°
-0.9°
30 October – 8 November
at normal
45.9°
—
October records over 66 years
83.8°1 October 2023All-time high
18.1°30 October 1988All-time low
Climate normals and records are computed from the nearest reference point — Unity (4 mi).
Sun, 1179° / 57°0
79 °
Colby, Sunday, 11 October
Clear. High 79°, low 57°.
Pressure29.85 inHg
Wind10.2 mph S
Humidity59%
Visibility6.2 mi
Dew point56°
Mon, 1278° / 62°0.04
78 °
Colby, Monday, 12 October
Light rain. High 78°, low 62°.
Pressure29.74 inHg
Wind5.2 mph SW
Humidity65%
Visibility6.2 mi
Dew point62°
Tue, 1362° / 53°0.02
62 °
Colby, Tuesday, 13 October
Light rain. High 62°, low 53°.
Pressure29.88 inHg
Wind7.7 mph NW
Humidity75%
Visibility6.2 mi
Dew point49°
Wed, 1458° / 47°0
58 °
Colby, Wednesday, 14 October
Overcast. High 58°, low 47°.
Pressure30.21 inHg
Wind7.8 mph N
Humidity56%
Visibility—
Dew point40°
Thu, 1557° / 42°0.15
57 °
Colby, Thursday, 15 October
Rain. High 57°, low 42°.
Pressure30.39 inHg
Wind7.9 mph SE
Humidity58%
Visibility—
Dew point39°
Fri, 1650° / 30°0.8
50 °
Colby, Friday, 16 October
Snow. High 50°, low 30°.
Pressure29.56 inHg
Wind25.9 mph W
Humidity97%
Visibility—
Dew point37°
Sat, 1734° / 23°0.04
34 °
Colby, Saturday, 17 October
Light snow. High 34°, low 23°.
Pressure30.39 inHg
Wind20.2 mph NW
Humidity67%
Visibility—
Dew point22°
Sun, 1843° / 22°0
43 °
Colby, Sunday, 18 October
Overcast. High 43°, low 22°.
Pressure30.42 inHg
Wind11.3 mph S
Humidity37%
Visibility—
Dew point14°
Mon, 1954° / 29°0
54 °
Colby, Monday, 19 October
Overcast. High 54°, low 29°.
Pressure30.18 inHg
Wind11.4 mph S
Humidity41%
Visibility—
Dew point25°
Tue, 2057° / 38°0
57 °
Colby, Tuesday, 20 October
Overcast. High 57°, low 38°.
Pressure30.09 inHg
Wind15.9 mph S
Humidity47%
Visibility—
Dew point33°
Wed, 2148° / 44°0.33
48 °
Colby, Wednesday, 21 October
Light rain. High 48°, low 44°.
Pressure29.80 inHg
Wind16.4 mph W
Humidity96%
Visibility—
Dew point44°
Thu, 2257° / 37°0
57 °
Colby, Thursday, 22 October
Mostly clear. High 57°, low 37°.
Pressure29.88 inHg
Wind18.5 mph NW
Humidity51%
Visibility—
Dew point35°
Fri, 2348° / 33°0
48 °
Colby, Friday, 23 October
Mostly clear. High 48°, low 33°.
Pressure30.15 inHg
Wind18.1 mph NW
Humidity50%
Visibility—
Dew point26°
Sat, 2447° / 28°0
47 °
Colby, Saturday, 24 October
Light rain. High 47°, low 28°.
Pressure30.21 inHg
Wind6.1 mph NW
Humidity45%
Visibility—
Dew point23°
Sun, 2538° / 32°0.42
38 °
Colby, Sunday, 25 October
Snow. High 38°, low 32°.
Pressure30.00 inHg
Wind16 mph N
Humidity99%
Visibility—
Dew point34°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2650° / 37°0.06
50 °
Colby, Monday, 26 October
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.06 in
Chance of precipitation22%
Record high73° (1989)
Record low20° (1962)
Tue, 2750° / 37°0.08
50 °
Colby, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.08 in
Chance of precipitation25%
Record high67° (1989)
Record low20° (2020)
Wed, 2849° / 36°0.09
49 °
Colby, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.09 in
Chance of precipitation23%
Record high64° (2024)
Record low24° (1969)
Thu, 2949° / 36°0.08
49 °
Colby, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.08 in
Chance of precipitation25%
Record high76° (2024)
Record low20° (1988)
Fri, 3050° / 36°0.07
50 °
Colby, Friday, 30 October
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.07 in
Chance of precipitation27%
Record high73° (2024)
Record low18° (1988)
Sat, 3148° / 36°0.09
48 °
Colby, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high48°
Average low36°
Average precipitation0.09 in
Chance of precipitation35%
Record high65° (2000)
Record low20° (1996)
Sun, 0147° / 35°0.14
47 °
Colby, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.14 in
Chance of precipitation30%
Record high68° (2000)
Record low20° (2023)
Mon, 0246° / 34°0.06
46 °
Colby, Monday, 2 November
Climate normal for this date — 60-year average.
Average high46°
Average low34°
Average precipitation0.06 in
Chance of precipitation23%
Record high68° (2022)
Record low13° (1991)
Tue, 0346° / 33°0.06
46 °
Colby, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.06 in
Chance of precipitation22%
Record high67° (2008)
Record low11° (1991)
Wed, 0445° / 33°0.07
45 °
Colby, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.07 in
Chance of precipitation25%
Record high67° (2008)
Record low6° (1991)
Thu, 0545° / 33°0.09
45 °
Colby, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.09 in
Chance of precipitation37%
Record high65° (2016)
Record low8° (1991)
Fri, 0645° / 32°0.06
45 °
Colby, Friday, 6 November
Climate normal for this date — 60-year average.
Average high45°
Average low32°
Average precipitation0.06 in
Chance of precipitation28%
Record high67° (2020)
Record low4° (1991)
Sat, 0744° / 31°0.03
44 °
Colby, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high44°
Average low31°
Average precipitation0.03 in
Chance of precipitation20%
Record high67° (2020)
Record low-9° (1991)
Sun, 0844° / 31°0.04
44 °
Colby, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high44°
Average low31°
Average precipitation0.04 in
Chance of precipitation22%
Record high68° (2020)
Record low-8° (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 Colby, 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 Colby, 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.