Monthly outlook for Marion, CT: average high 59.8°, average low 41.6°. That is 0.6° below the climate normal for October. Precipitation is expected on 5 days (about 1.6 inches), against a normal of 4 days and 2.0 inches. The warmest day looks like 14 October (71.6°), the coolest 20 October (29.7°).
59.8°/41.6°
Average high / low
−0.6°
Below normal
5 / 4
Wet days / normal
1.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
10 October – 19 October
62.2°
61.6°
+0.3°
20 October – 29 October
55.6°
58.6°
-1.6°
30 October – 8 November
at normal
55.2°
—
October records over 66 years
86.5°6 October 2007All-time high
24.1°31 October 2011All-time low
Climate normals and records are computed from the nearest reference point — Waterbury (6 mi).
Sun, 1157° / 43°0.56
57 °
Marion, Sunday, 11 October
Rain. High 57°, low 43°.
Pressure30.36 inHg
Wind3.8 mph E
Humidity77%
Visibility6.2 mi
Dew point49°
Mon, 1269° / 46°0.12
69 °
Marion, Monday, 12 October
Light rain. High 69°, low 46°.
Pressure29.74 inHg
Wind11.8 mph NE
Humidity79%
Visibility6.2 mi
Dew point56°
Tue, 1369° / 53°0.04
69 °
Marion, Tuesday, 13 October
Light rain. High 69°, low 53°.
Pressure29.91 inHg
Wind7.4 mph S
Humidity69%
Visibility6.2 mi
Dew point57°
Wed, 1472° / 58°0.01
72 °
Marion, Wednesday, 14 October
Light rain. High 72°, low 58°.
Pressure29.83 inHg
Wind8 mph NW
Humidity73%
Visibility6.2 mi
Dew point61°
Thu, 1560° / 46°0
60 °
Marion, Thursday, 15 October
Overcast. High 60°, low 46°.
Pressure30.15 inHg
Wind11.7 mph NW
Humidity59%
Visibility—
Dew point44°
Fri, 1664° / 44°0.72
64 °
Marion, Friday, 16 October
Rain. High 64°, low 44°.
Pressure30.06 inHg
Wind8.3 mph S
Humidity91%
Visibility—
Dew point48°
Sat, 1764° / 49°0.11
64 °
Marion, Saturday, 17 October
Light rain. High 64°, low 49°.
Pressure29.85 inHg
Wind6.8 mph SW
Humidity93%
Visibility—
Dew point60°
Sun, 1856° / 40°0.09
56 °
Marion, Sunday, 18 October
Light rain. High 56°, low 40°.
Pressure29.97 inHg
Wind10.5 mph NW
Humidity71%
Visibility—
Dew point40°
Mon, 1948° / 33°0
48 °
Marion, Monday, 19 October
Clear. High 48°, low 33°.
Pressure30.45 inHg
Wind11.9 mph NW
Humidity48%
Visibility—
Dew point25°
Tue, 2051° / 30°0
51 °
Marion, Tuesday, 20 October
Clear. High 51°, low 30°.
Pressure30.56 inHg
Wind6.2 mph NE
Humidity33%
Visibility—
Dew point16°
Wed, 2155° / 33°0
55 °
Marion, Wednesday, 21 October
Partly cloudy. High 55°, low 33°.
Pressure30.53 inHg
Wind3 mph S
Humidity42%
Visibility—
Dew point25°
Thu, 2256° / 35°0
56 °
Marion, Thursday, 22 October
Clear. High 56°, low 35°.
Pressure30.62 inHg
Wind3.6 mph NE
Humidity47%
Visibility—
Dew point29°
Fri, 2356° / 36°0
56 °
Marion, Friday, 23 October
Clear. High 56°, low 36°.
Pressure30.47 inHg
Wind4.9 mph NE
Humidity48%
Visibility—
Dew point29°
Sat, 2458° / 38°0
58 °
Marion, Saturday, 24 October
Partly cloudy. High 58°, low 38°.
Pressure30.33 inHg
Wind5.8 mph NE
Humidity49%
Visibility—
Dew point32°
Sun, 2557° / 39°0
57 °
Marion, Sunday, 25 October
Overcast. High 57°, low 39°.
Pressure30.27 inHg
Wind7 mph NE
Humidity52%
Visibility—
Dew point32°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2658° / 44°0.15
58 °
Marion, Monday, 26 October
Climate normal for this date — 60-year average.
Average high58°
Average low44°
Average precipitation0.15 in
Chance of precipitation33%
Record high79° (1963)
Record low33° (1962)
Tue, 2758° / 44°0.15
58 °
Marion, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high58°
Average low44°
Average precipitation0.15 in
Chance of precipitation23%
Record high81° (1963)
Record low29° (1976)
Wed, 2857° / 43°0.19
57 °
Marion, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high57°
Average low43°
Average precipitation0.19 in
Chance of precipitation30%
Record high76° (2023)
Record low28° (1976)
Thu, 2956° / 42°0.18
56 °
Marion, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high56°
Average low42°
Average precipitation0.18 in
Chance of precipitation28%
Record high71° (1971)
Record low30° (1965)
Fri, 3055° / 41°0.16
55 °
Marion, Friday, 30 October
Climate normal for this date — 60-year average.
Average high55°
Average low41°
Average precipitation0.16 in
Chance of precipitation28%
Record high73° (2024)
Record low30° (2020)
Sat, 3156° / 41°0.07
56 °
Marion, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high56°
Average low41°
Average precipitation0.07 in
Chance of precipitation23%
Record high78° (2024)
Record low24° (2011)
Sun, 0157° / 43°0.11
57 °
Marion, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high57°
Average low43°
Average precipitation0.11 in
Chance of precipitation30%
Record high76° (2024)
Record low31° (1964)
Mon, 0257° / 43°0.07
57 °
Marion, Monday, 2 November
Climate normal for this date — 60-year average.
Average high57°
Average low43°
Average precipitation0.07 in
Chance of precipitation32%
Record high73° (1982)
Record low27° (2023)
Tue, 0357° / 42°0.11
57 °
Marion, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high57°
Average low42°
Average precipitation0.11 in
Chance of precipitation30%
Record high73° (2003)
Record low28° (1980)
Wed, 0455° / 41°0.05
55 °
Marion, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high55°
Average low41°
Average precipitation0.05 in
Chance of precipitation25%
Record high72° (1987)
Record low30° (2020)
Thu, 0555° / 41°0.14
55 °
Marion, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high55°
Average low41°
Average precipitation0.14 in
Chance of precipitation33%
Record high72° (2022)
Record low30° (2006)
Fri, 0654° / 41°0.09
54 °
Marion, Friday, 6 November
Climate normal for this date — 60-year average.
Average high54°
Average low41°
Average precipitation0.09 in
Chance of precipitation30%
Record high77° (2024)
Record low28° (2012)
Sat, 0753° / 40°0.09
53 °
Marion, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high53°
Average low40°
Average precipitation0.09 in
Chance of precipitation28%
Record high73° (2022)
Record low28° (1962)
Sun, 0852° / 39°0.16
52 °
Marion, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high52°
Average low39°
Average precipitation0.16 in
Chance of precipitation32%
Record high71° (2020)
Record low26° (2019)
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 Marion, 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 Marion, 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.