Monthly outlook for Oneco, CT: average high 61.3°, average low 42.9°. That is 0.2° above the climate normal for October. Precipitation is expected on 7 days (about 3.9 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 13 October (74.6°), the coolest 19 October (29.4°).
61.3°/42.9°
Average high / low
+0.2°
Above normal
7 / 5
Wet days / normal
3.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 October – 18 October
62.9°
61.8°
+0.6°
19 October – 28 October
58.4°
58.5°
-0.1°
29 October – 7 November
at normal
55.3°
—
October records over 66 years
84.7°6 October 2007All-time high
22.8°31 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Sterling (1 mi).
Sat, 1064° / 44°0
64 °
Oneco, Saturday, 10 October
Overcast. High 64°, low 44°.
Pressure30.47 inHg
Wind2.6 mph NW
Humidity49%
Visibility6.2 mi
Dew point42°
Sun, 1160° / 41°0.17
60 °
Oneco, Sunday, 11 October
Rain. High 60°, low 41°.
Pressure30.39 inHg
Wind7.8 mph SE
Humidity54%
Visibility6.2 mi
Dew point43°
Mon, 1266° / 55°0.13
66 °
Oneco, Monday, 12 October
Rain. High 66°, low 55°.
Pressure29.68 inHg
Wind12.6 mph N
Humidity84%
Visibility6.2 mi
Dew point55°
Tue, 1375° / 51°0.18
75 °
Oneco, Tuesday, 13 October
Light rain. High 75°, low 51°.
Pressure29.74 inHg
Wind7.5 mph SW
Humidity67%
Visibility6.2 mi
Dew point59°
Wed, 1462° / 47°0
62 °
Oneco, Wednesday, 14 October
Overcast. High 62°, low 47°.
Pressure29.88 inHg
Wind9.3 mph NW
Humidity71%
Visibility—
Dew point50°
Thu, 1558° / 40°0
58 °
Oneco, Thursday, 15 October
Clear. High 58°, low 40°.
Pressure30.24 inHg
Wind7.4 mph N
Humidity43%
Visibility—
Dew point29°
Fri, 1663° / 43°0.23
63 °
Oneco, Friday, 16 October
Rain. High 63°, low 43°.
Pressure30.09 inHg
Wind17 mph SW
Humidity77%
Visibility—
Dew point46°
Sat, 1765° / 41°0.36
65 °
Oneco, Saturday, 17 October
Rain. High 65°, low 41°.
Pressure29.83 inHg
Wind16.8 mph SW
Humidity92%
Visibility—
Dew point48°
Sun, 1850° / 33°0
50 °
Oneco, Sunday, 18 October
Partly cloudy. High 50°, low 33°.
Pressure30.15 inHg
Wind10.7 mph NW
Humidity51%
Visibility—
Dew point28°
Mon, 1952° / 29°0
52 °
Oneco, Monday, 19 October
Overcast. High 52°, low 29°.
Pressure30.50 inHg
Wind4.3 mph NW
Humidity38%
Visibility—
Dew point20°
Tue, 2056° / 36°0
56 °
Oneco, Tuesday, 20 October
Mostly clear. High 56°, low 36°.
Pressure30.53 inHg
Wind5.6 mph S
Humidity56%
Visibility—
Dew point35°
Wed, 2160° / 38°0
60 °
Oneco, Wednesday, 21 October
Clear. High 60°, low 38°.
Pressure30.59 inHg
Wind6.1 mph S
Humidity52%
Visibility—
Dew point36°
Thu, 2259° / 40°0
59 °
Oneco, Thursday, 22 October
Overcast. High 59°, low 40°.
Pressure30.45 inHg
Wind5.8 mph S
Humidity59%
Visibility—
Dew point39°
Fri, 2360° / 45°0.07
60 °
Oneco, Friday, 23 October
Light rain. High 60°, low 45°.
Pressure30.27 inHg
Wind8.1 mph S
Humidity97%
Visibility—
Dew point52°
Sat, 2463° / 59°2.74
63 °
Oneco, Saturday, 24 October
Heavy rain. High 63°, low 59°.
Pressure29.91 inHg
Wind28.5 mph SE
Humidity92%
Visibility—
Dew point59°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2559° / 44°0.15
59 °
Oneco, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high59°
Average low44°
Average precipitation0.15 in
Chance of precipitation32%
Record high78° (1963)
Record low32° (2003)
Mon, 2657° / 44°0.13
57 °
Oneco, Monday, 26 October
Climate normal for this date — 60-year average.
Average high57°
Average low44°
Average precipitation0.13 in
Chance of precipitation27%
Record high78° (1963)
Record low29° (2018)
Tue, 2757° / 43°0.13
57 °
Oneco, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high57°
Average low43°
Average precipitation0.13 in
Chance of precipitation23%
Record high79° (1963)
Record low28° (1976)
Wed, 2857° / 42°0.13
57 °
Oneco, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high57°
Average low42°
Average precipitation0.13 in
Chance of precipitation33%
Record high77° (2023)
Record low27° (1976)
Thu, 2955° / 41°0.16
55 °
Oneco, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high55°
Average low41°
Average precipitation0.16 in
Chance of precipitation23%
Record high72° (1989)
Record low29° (1965)
Fri, 3055° / 41°0.16
55 °
Oneco, Friday, 30 October
Climate normal for this date — 60-year average.
Average high55°
Average low41°
Average precipitation0.16 in
Chance of precipitation25%
Record high70° (1971)
Record low28° (2020)
Sat, 3156° / 41°0.08
56 °
Oneco, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high56°
Average low41°
Average precipitation0.08 in
Chance of precipitation22%
Record high75° (2024)
Record low23° (2020)
Sun, 0157° / 42°0.11
57 °
Oneco, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high57°
Average low42°
Average precipitation0.11 in
Chance of precipitation25%
Record high76° (2024)
Record low31° (1964)
Mon, 0257° / 43°0.1
57 °
Oneco, Monday, 2 November
Climate normal for this date — 60-year average.
Average high57°
Average low43°
Average precipitation0.1 in
Chance of precipitation30%
Record high71° (1982)
Record low27° (2023)
Tue, 0356° / 42°0.19
56 °
Oneco, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high56°
Average low42°
Average precipitation0.19 in
Chance of precipitation27%
Record high72° (2003)
Record low27° (2002)
Wed, 0455° / 41°0.04
55 °
Oneco, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high55°
Average low41°
Average precipitation0.04 in
Chance of precipitation22%
Record high72° (1987)
Record low29° (2020)
Thu, 0555° / 41°0.14
55 °
Oneco, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high55°
Average low41°
Average precipitation0.14 in
Chance of precipitation38%
Record high71° (2022)
Record low29° (1965)
Fri, 0653° / 41°0.12
53 °
Oneco, Friday, 6 November
Climate normal for this date — 60-year average.
Average high53°
Average low41°
Average precipitation0.12 in
Chance of precipitation35%
Record high73° (2024)
Record low27° (2012)
Sat, 0753° / 39°0.06
53 °
Oneco, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.06 in
Chance of precipitation23%
Record high74° (2022)
Record low27° (1962)
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 Oneco, 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 Oneco, 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.