Monthly outlook for Byram, CT: average high 60.6°, average low 45.4°. That is 0.5° above the climate normal for October. Precipitation is expected on 2 days (about 0.8 inches), against a normal of 4 days and 2.1 inches. The warmest day looks like 16 October (70.1°), the coolest 18 October (36.4°).
60.6°/45.4°
Average high / low
+0.5°
Above normal
2 / 4
Wet days / normal
0.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
16 October – 25 October
61.6°
60.8°
+0.4°
26 October – 4 November
58.9°
57.7°
+0.7°
5 November – 14 November
at normal
53.3°
—
October records over 66 years
89.8°2 October 2019All-time high
31.5°27 October 1976All-time low
Sat, 1761° / 40°0
61 °
Byram, Saturday, 17 October
Light rain. High 61°, low 40°.
Pressure30.15 inHg
Wind13.8 mph NW
Humidity47%
Visibility6.2 mi
Dew point30°
Sun, 1857° / 36°0
57 °
Byram, Sunday, 18 October
Clear. High 57°, low 36°.
Pressure30.59 inHg
Wind4.2 mph N
Humidity46%
Visibility6.2 mi
Dew point33°
Mon, 1963° / 38°0
63 °
Byram, Monday, 19 October
Clear. High 63°, low 38°.
Pressure30.45 inHg
Wind4.7 mph NE
Humidity53%
Visibility6.2 mi
Dew point42°
Tue, 2067° / 46°0
67 °
Byram, Tuesday, 20 October
Clear. High 67°, low 46°.
Pressure30.24 inHg
Wind7.4 mph N
Humidity52%
Visibility6.2 mi
Dew point45°
Wed, 2161° / 45°0
61 °
Byram, Wednesday, 21 October
Clear. High 61°, low 45°.
Pressure30.33 inHg
Wind9.5 mph NE
Humidity51%
Visibility—
Dew point37°
Thu, 2257° / 42°0
57 °
Byram, Thursday, 22 October
Overcast. High 57°, low 42°.
Pressure30.30 inHg
Wind12.3 mph NE
Humidity67%
Visibility—
Dew point38°
Fri, 2366° / 51°0.01
66 °
Byram, Friday, 23 October
Light rain. High 66°, low 51°.
Pressure30.12 inHg
Wind10.4 mph N
Humidity65%
Visibility—
Dew point44°
Sat, 2457° / 47°0
57 °
Byram, Saturday, 24 October
Clear. High 57°, low 47°.
Pressure30.33 inHg
Wind16.7 mph NE
Humidity56%
Visibility—
Dew point40°
Sun, 2557° / 42°0
57 °
Byram, Sunday, 25 October
Clear. High 57°, low 42°.
Pressure30.45 inHg
Wind11.9 mph N
Humidity51%
Visibility—
Dew point31°
Mon, 2664° / 44°0
64 °
Byram, Monday, 26 October
Overcast. High 64°, low 44°.
Pressure30.24 inHg
Wind7.3 mph SW
Humidity32%
Visibility—
Dew point24°
Tue, 2759° / 49°0
59 °
Byram, Tuesday, 27 October
Light rain. High 59°, low 49°.
Pressure29.91 inHg
Wind23.6 mph NW
Humidity61%
Visibility—
Dew point44°
Wed, 2857° / 46°0
57 °
Byram, Wednesday, 28 October
Clear. High 57°, low 46°.
Pressure30.12 inHg
Wind16.4 mph NW
Humidity51%
Visibility—
Dew point34°
Thu, 2957° / 44°0
57 °
Byram, Thursday, 29 October
Mostly clear. High 57°, low 44°.
Pressure30.15 inHg
Wind8.4 mph S
Humidity48%
Visibility—
Dew point31°
Fri, 3062° / 55°0.39
62 °
Byram, Friday, 30 October
Rain. High 62°, low 55°.
Pressure29.62 inHg
Wind16.2 mph SW
Humidity79%
Visibility—
Dew point51°
Sat, 3155° / 45°0
55 °
Byram, Saturday, 31 October
Mostly clear. High 55°, low 45°.
Pressure29.77 inHg
Wind16.1 mph NW
Humidity52%
Visibility—
Dew point38°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 0158° / 47°0.1
58 °
Byram, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high58°
Average low47°
Average precipitation0.1 in
Chance of precipitation27%
Record high78° (2024)
Record low36° (1976)
Mon, 0258° / 46°0.09
58 °
Byram, Monday, 2 November
Climate normal for this date — 60-year average.
Average high58°
Average low46°
Average precipitation0.09 in
Chance of precipitation35%
Record high73° (1982)
Record low31° (1965)
Tue, 0358° / 45°0.1
58 °
Byram, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high58°
Average low45°
Average precipitation0.1 in
Chance of precipitation23%
Record high74° (2003)
Record low35° (1996)
Wed, 0456° / 44°0.05
56 °
Byram, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high56°
Average low44°
Average precipitation0.05 in
Chance of precipitation20%
Record high72° (1975)
Record low34° (2013)
Thu, 0556° / 44°0.12
56 °
Byram, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high56°
Average low44°
Average precipitation0.12 in
Chance of precipitation33%
Record high72° (2022)
Record low35° (1965)
Fri, 0655° / 44°0.08
55 °
Byram, Friday, 6 November
Climate normal for this date — 60-year average.
Average high55°
Average low44°
Average precipitation0.08 in
Chance of precipitation28%
Record high78° (2024)
Record low34° (1962)
Sat, 0755° / 43°0.09
55 °
Byram, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high55°
Average low43°
Average precipitation0.09 in
Chance of precipitation27%
Record high74° (2022)
Record low32° (1962)
Sun, 0854° / 42°0.15
54 °
Byram, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high54°
Average low42°
Average precipitation0.15 in
Chance of precipitation28%
Record high71° (2020)
Record low30° (2019)
Mon, 0954° / 42°0.08
54 °
Byram, Monday, 9 November
Climate normal for this date — 60-year average.
Average high54°
Average low42°
Average precipitation0.08 in
Chance of precipitation23%
Record high72° (1975)
Record low27° (2019)
Tue, 1055° / 42°0.15
55 °
Byram, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high55°
Average low42°
Average precipitation0.15 in
Chance of precipitation38%
Record high69° (2020)
Record low26° (2017)
Wed, 1153° / 42°0.14
53 °
Byram, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high53°
Average low42°
Average precipitation0.14 in
Chance of precipitation35%
Record high68° (2020)
Record low24° (2017)
Thu, 1252° / 40°0.14
52 °
Byram, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high52°
Average low40°
Average precipitation0.14 in
Chance of precipitation40%
Record high68° (2022)
Record low27° (2019)
Fri, 1350° / 39°0.19
50 °
Byram, Friday, 13 November
Climate normal for this date — 60-year average.
Average high50°
Average low39°
Average precipitation0.19 in
Chance of precipitation37%
Record high69° (1964)
Record low23° (2019)
Sat, 1451° / 39°0.08
51 °
Byram, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high51°
Average low39°
Average precipitation0.08 in
Chance of precipitation23%
Record high67° (1989)
Record low25° (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 Byram, 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 Byram, 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.