Monthly outlook for Columbia, CT: average high 58.1°, average low 40.5°. That is 0.1° below the climate normal for October. Precipitation is expected on 1 day (about 0.8 inches), against a normal of 4 days and 1.9 inches. The warmest day looks like 29 October (66.8°), the coolest 24 October (32°).
58.1°/40.5°
Average high / low
−0.1°
Below normal
1 / 4
Wet days / normal
0.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
21 October – 30 October
58.6°
58.9°
-0.2°
31 October – 9 November
57.3°
55.9°
+0.8°
10 November – 19 November
at normal
51°
—
October records over 66 years
83.8°6 October 2007All-time high
22.6°31 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Norwich (15 mi).
Thu, 2263° / 41°0
63 °
Columbia, Thursday, 22 October
Overcast. High 63°, low 41°.
Pressure29.94 inHg
Wind10.2 mph N
Humidity44%
Visibility6.2 mi
Dew point35°
Fri, 2354° / 37°0
54 °
Columbia, Friday, 23 October
Clear. High 54°, low 37°.
Pressure30.39 inHg
Wind7.2 mph N
Humidity48%
Visibility6.2 mi
Dew point30°
Sat, 2456° / 32°0
56 °
Columbia, Saturday, 24 October
Mostly clear. High 56°, low 32°.
Pressure30.56 inHg
Wind3.9 mph NW
Humidity45%
Visibility6.2 mi
Dew point32°
Sun, 2561° / 35°0
61 °
Columbia, Sunday, 25 October
Clear. High 61°, low 35°.
Pressure30.56 inHg
Wind6.5 mph S
Humidity55%
Visibility—
Dew point36°
Mon, 2661° / 39°0
61 °
Columbia, Monday, 26 October
Clear. High 61°, low 39°.
Pressure30.36 inHg
Wind5.3 mph W
Humidity56%
Visibility—
Dew point37°
Tue, 2754° / 37°0
54 °
Columbia, Tuesday, 27 October
Clear. High 54°, low 37°.
Pressure30.39 inHg
Wind7.9 mph N
Humidity36%
Visibility—
Dew point23°
Wed, 2858° / 36°0
58 °
Columbia, Wednesday, 28 October
Overcast. High 58°, low 36°.
Pressure30.47 inHg
Wind8.6 mph S
Humidity62%
Visibility—
Dew point38°
Thu, 2967° / 49°0
67 °
Columbia, Thursday, 29 October
Partly cloudy. High 67°, low 49°.
Pressure30.21 inHg
Wind13.2 mph SW
Humidity66%
Visibility—
Dew point50°
Fri, 3055° / 39°0.01
55 °
Columbia, Friday, 30 October
Light rain. High 55°, low 39°.
Pressure30.21 inHg
Wind8.7 mph N
Humidity58%
Visibility—
Dew point40°
Sat, 3152° / 35°0
52 °
Columbia, Saturday, 31 October
Clear. High 52°, low 35°.
Pressure30.56 inHg
Wind8.6 mph NE
Humidity40%
Visibility—
Dew point24°
Sun, 0154° / 34°0
54 °
Columbia, Sunday, 1 November
Overcast. High 54°, low 34°.
Pressure30.71 inHg
Wind8.3 mph SE
Humidity59%
Visibility—
Dew point34°
Mon, 0262° / 49°0
62 °
Columbia, Monday, 2 November
Overcast. High 62°, low 49°.
Pressure30.47 inHg
Wind7.3 mph S
Humidity78%
Visibility—
Dew point50°
Tue, 0367° / 49°0
67 °
Columbia, Tuesday, 3 November
Overcast. High 67°, low 49°.
Pressure30.33 inHg
Wind7.3 mph SE
Humidity66%
Visibility—
Dew point49°
Wed, 0455° / 48°0
55 °
Columbia, Wednesday, 4 November
Overcast. High 55°, low 48°.
Pressure30.27 inHg
Wind10.6 mph E
Humidity80%
Visibility—
Dew point47°
Thu, 0554° / 47°0.8
54 °
Columbia, Thursday, 5 November
Heavy rain. High 54°, low 47°.
Pressure30.12 inHg
Wind12.8 mph E
Humidity97%
Visibility—
Dew point47°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 0655° / 42°0.12
55 °
Columbia, Friday, 6 November
Climate normal for this date — 60-year average.
Average high55°
Average low42°
Average precipitation0.12 in
Chance of precipitation35%
Record high74° (2024)
Record low29° (2021)
Sat, 0755° / 41°0.08
55 °
Columbia, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high55°
Average low41°
Average precipitation0.08 in
Chance of precipitation23%
Record high75° (2022)
Record low28° (1962)
Sun, 0853° / 40°0.12
53 °
Columbia, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high53°
Average low40°
Average precipitation0.12 in
Chance of precipitation30%
Record high72° (2020)
Record low27° (1960)
Mon, 0954° / 40°0.09
54 °
Columbia, Monday, 9 November
Climate normal for this date — 60-year average.
Average high54°
Average low40°
Average precipitation0.09 in
Chance of precipitation22%
Record high72° (1975)
Record low22° (2019)
Tue, 1054° / 40°0.18
54 °
Columbia, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high54°
Average low40°
Average precipitation0.18 in
Chance of precipitation38%
Record high69° (2020)
Record low24° (2017)
Wed, 1153° / 40°0.15
53 °
Columbia, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high53°
Average low40°
Average precipitation0.15 in
Chance of precipitation35%
Record high68° (2022)
Record low21° (2017)
Thu, 1251° / 39°0.17
51 °
Columbia, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high51°
Average low39°
Average precipitation0.17 in
Chance of precipitation37%
Record high70° (2022)
Record low26° (2019)
Fri, 1350° / 37°0.21
50 °
Columbia, Friday, 13 November
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.21 in
Chance of precipitation40%
Record high68° (1964)
Record low19° (2019)
Sat, 1450° / 37°0.09
50 °
Columbia, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.09 in
Chance of precipitation22%
Record high65° (1993)
Record low20° (2019)
Sun, 1551° / 37°0.12
51 °
Columbia, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.12 in
Chance of precipitation35%
Record high72° (1993)
Record low22° (1967)
Mon, 1651° / 38°0.15
51 °
Columbia, Monday, 16 November
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.15 in
Chance of precipitation37%
Record high68° (2001)
Record low19° (1967)
Tue, 1750° / 36°0.16
50 °
Columbia, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.16 in
Chance of precipitation27%
Record high64° (2006)
Record low17° (1967)
Wed, 1850° / 37°0.08
50 °
Columbia, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.08 in
Chance of precipitation23%
Record high65° (1987)
Record low24° (2020)
Thu, 1950° / 36°0.06
50 °
Columbia, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.06 in
Chance of precipitation18%
Record high61° (1985)
Record low19° (1986)
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 Columbia, CT 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 Columbia, CT 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.