Monthly outlook for Byrnes Mill, MO: average high 61.8°, average low 51.7°. That is 1.8° above the climate normal for October. Precipitation is expected on 6 days (about 1.6 inches), against a normal of 4 days and 1.7 inches. The warmest day looks like 30 October (75.1°), the coolest 12 November (39.4°).
61.8°/51.7°
Average high / low
+1.8°
Above normal
6 / 4
Wet days / normal
1.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
30 October – 8 November
67.1°
60.1°
+3.9°
9 November – 18 November
53.1°
55.7°
-1.4°
19 November – 28 November
at normal
51.5°
—
October records over 66 years
92.8°10 October 1963All-time high
27.7°31 October 2023All-time low
Climate normals and records are computed from the nearest reference point — Pacific (10 mi).
Sat, 3171° / 61°0
71 °
Byrnes Mill, Saturday, 31 October
Overcast. High 71°, low 61°.
Pressure30.27 inHg
Wind4.1 mph SE
Humidity67%
Visibility6.2 mi
Dew point56°
Sun, 0169° / 60°0
69 °
Byrnes Mill, Sunday, 1 November
Partly cloudy. High 69°, low 60°.
Pressure30.27 inHg
Wind9.6 mph SE
Humidity68%
Visibility6.2 mi
Dew point56°
Mon, 0272° / 59°0
72 °
Byrnes Mill, Monday, 2 November
Overcast. High 72°, low 59°.
Pressure30.09 inHg
Wind11.8 mph S
Humidity69%
Visibility6.2 mi
Dew point57°
Tue, 0372° / 66°0.17
72 °
Byrnes Mill, Tuesday, 3 November
Rain. High 72°, low 66°.
Pressure29.88 inHg
Wind14.6 mph S
Humidity76%
Visibility6.2 mi
Dew point63°
Wed, 0466° / 58°0.9
66 °
Byrnes Mill, Wednesday, 4 November
Heavy rain. High 66°, low 58°.
Pressure29.71 inHg
Wind10.2 mph NW
Humidity76%
Visibility—
Dew point56°
Thu, 0564° / 55°0
64 °
Byrnes Mill, Thursday, 5 November
Overcast. High 64°, low 55°.
Pressure29.74 inHg
Wind8.4 mph NW
Humidity86%
Visibility—
Dew point56°
Fri, 0663° / 50°0
63 °
Byrnes Mill, Friday, 6 November
Overcast. High 63°, low 50°.
Pressure29.91 inHg
Wind6.7 mph N
Humidity55%
Visibility—
Dew point44°
Sat, 0761° / 47°0
61 °
Byrnes Mill, Saturday, 7 November
Clear. High 61°, low 47°.
Pressure30.09 inHg
Wind5.7 mph NE
Humidity51%
Visibility—
Dew point40°
Sun, 0857° / 46°0
57 °
Byrnes Mill, Sunday, 8 November
Overcast. High 57°, low 46°.
Pressure30.18 inHg
Wind9.8 mph E
Humidity50%
Visibility—
Dew point36°
Mon, 0949° / 46°0.07
49 °
Byrnes Mill, Monday, 9 November
Light rain. High 49°, low 46°.
Pressure30.03 inHg
Wind10 mph E
Humidity79%
Visibility—
Dew point40°
Tue, 1047° / 44°0.31
47 °
Byrnes Mill, Tuesday, 10 November
Rain. High 47°, low 44°.
Pressure29.91 inHg
Wind9.5 mph NW
Humidity86%
Visibility—
Dew point41°
Wed, 1152° / 45°0
52 °
Byrnes Mill, Wednesday, 11 November
Overcast. High 52°, low 45°.
Pressure30.00 inHg
Wind7.5 mph NW
Humidity57%
Visibility—
Dew point35°
Thu, 1256° / 39°0
56 °
Byrnes Mill, Thursday, 12 November
Partly cloudy. High 56°, low 39°.
Pressure29.88 inHg
Wind9.1 mph SE
Humidity48%
Visibility—
Dew point33°
Fri, 1362° / 48°0.1
62 °
Byrnes Mill, Friday, 13 November
Light rain. High 62°, low 48°.
Pressure29.59 inHg
Wind11.9 mph SW
Humidity70%
Visibility—
Dew point49°
Sat, 1452° / 45°0.06
52 °
Byrnes Mill, Saturday, 14 November
Light rain. High 52°, low 45°.
Pressure29.71 inHg
Wind12.1 mph W
Humidity82%
Visibility—
Dew point41°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 1555° / 40°0.13
55 °
Byrnes Mill, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.13 in
Chance of precipitation33%
Record high77° (2025)
Record low21° (2019)
Mon, 1655° / 39°0.12
55 °
Byrnes Mill, Monday, 16 November
Climate normal for this date — 60-year average.
Average high55°
Average low39°
Average precipitation0.12 in
Chance of precipitation25%
Record high73° (2001)
Record low26° (1997)
Tue, 1756° / 39°0.13
56 °
Byrnes Mill, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high56°
Average low39°
Average precipitation0.13 in
Chance of precipitation28%
Record high77° (2016)
Record low19° (2014)
Wed, 1855° / 40°0.17
55 °
Byrnes Mill, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.17 in
Chance of precipitation37%
Record high72° (2024)
Record low15° (2014)
Thu, 1955° / 40°0.09
55 °
Byrnes Mill, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.09 in
Chance of precipitation28%
Record high73° (1979)
Record low21° (2022)
Fri, 2053° / 39°0.12
53 °
Byrnes Mill, Friday, 20 November
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.12 in
Chance of precipitation33%
Record high73° (2007)
Record low19° (2022)
Sat, 2152° / 38°0.09
52 °
Byrnes Mill, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.09 in
Chance of precipitation23%
Record high70° (1990)
Record low17° (1964)
Sun, 2252° / 37°0.09
52 °
Byrnes Mill, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.09 in
Chance of precipitation25%
Record high72° (2010)
Record low17° (1964)
Mon, 2353° / 37°0.09
53 °
Byrnes Mill, Monday, 23 November
Climate normal for this date — 60-year average.
Average high53°
Average low37°
Average precipitation0.09 in
Chance of precipitation32%
Record high69° (1966)
Record low19° (1970)
Tue, 2451° / 36°0.14
51 °
Byrnes Mill, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.14 in
Chance of precipitation27%
Record high72° (1966)
Record low16° (1970)
Wed, 2551° / 36°0.15
51 °
Byrnes Mill, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.15 in
Chance of precipitation33%
Record high71° (1990)
Record low21° (1991)
Thu, 2651° / 37°0.16
51 °
Byrnes Mill, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.16 in
Chance of precipitation42%
Record high77° (1965)
Record low15° (1977)
Fri, 2750° / 36°0.2
50 °
Byrnes Mill, Friday, 27 November
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.2 in
Chance of precipitation43%
Record high71° (1989)
Record low15° (1993)
Sat, 2847° / 34°0.08
47 °
Byrnes Mill, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.08 in
Chance of precipitation23%
Record high71° (1998)
Record low19° (1977)
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 Byrnes Mill, MO 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 Byrnes Mill, MO 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.