Monthly outlook for Byrnes Mill, MO: average high 55.4°, average low 40.7°. That is 1.2° above the climate normal for November. Precipitation is expected on 2 days (about 1.8 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 21 November (70.4°), the coolest 27 November (24.8°).
55.4°/40.7°
Average high / low
+1.2°
Above normal
2 / 5
Wet days / normal
1.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
12 November – 21 November
58°
54.5°
+2°
22 November – 1 December
51.1°
50°
+0.6°
2 December – 11 December
at normal
45.9°
—
November records over 66 years
81.3°8 November 2023All-time high
4.6°8 November 1991All-time low
Climate normals and records are computed from the nearest reference point — Pacific (10 mi).
Fri, 1348° / 34°0
48 °
Byrnes Mill, Friday, 13 November
Overcast. High 48°, low 34°.
Pressure30.12 inHg
Wind10.7 mph N
Humidity63%
Visibility6.2 mi
Dew point25°
Sat, 1448° / 32°0
48 °
Byrnes Mill, Saturday, 14 November
Clear. High 48°, low 32°.
Pressure30.33 inHg
Wind2.8 mph N
Humidity57%
Visibility6.2 mi
Dew point26°
Sun, 1552° / 30°0
52 °
Byrnes Mill, Sunday, 15 November
Overcast. High 52°, low 30°.
Pressure30.45 inHg
Wind2.6 mph E
Humidity49%
Visibility6.2 mi
Dew point29°
Mon, 1655° / 32°0
55 °
Byrnes Mill, Monday, 16 November
Clear. High 55°, low 32°.
Pressure30.50 inHg
Wind3 mph SE
Humidity45%
Visibility6.2 mi
Dew point31°
Tue, 1756° / 35°0
56 °
Byrnes Mill, Tuesday, 17 November
Clear. High 56°, low 35°.
Pressure30.45 inHg
Wind7 mph SE
Humidity48%
Visibility—
Dew point33°
Wed, 1865° / 39°0
65 °
Byrnes Mill, Wednesday, 18 November
Mostly clear. High 65°, low 39°.
Pressure30.27 inHg
Wind10.2 mph S
Humidity37%
Visibility—
Dew point33°
Thu, 1965° / 54°0
65 °
Byrnes Mill, Thursday, 19 November
Overcast. High 65°, low 54°.
Pressure30.24 inHg
Wind8.7 mph SW
Humidity35%
Visibility—
Dew point35°
Fri, 2070° / 52°0
70 °
Byrnes Mill, Friday, 20 November
Light rain. High 70°, low 52°.
Pressure30.30 inHg
Wind6.5 mph S
Humidity35%
Visibility—
Dew point37°
Sat, 2170° / 51°0
70 °
Byrnes Mill, Saturday, 21 November
Overcast. High 70°, low 51°.
Pressure30.21 inHg
Wind9.9 mph S
Humidity45%
Visibility—
Dew point45°
Sun, 2264° / 54°0
64 °
Byrnes Mill, Sunday, 22 November
Overcast. High 64°, low 54°.
Pressure30.00 inHg
Wind11.7 mph S
Humidity62%
Visibility—
Dew point48°
Mon, 2365° / 60°1.55
65 °
Byrnes Mill, Monday, 23 November
Heavy rain. High 65°, low 60°.
Pressure29.68 inHg
Wind14.6 mph S
Humidity92%
Visibility—
Dew point61°
Tue, 2456° / 44°0.01
56 °
Byrnes Mill, Tuesday, 24 November
Light rain. High 56°, low 44°.
Pressure29.91 inHg
Wind11.4 mph W
Humidity52%
Visibility—
Dew point35°
Wed, 2544° / 40°0
44 °
Byrnes Mill, Wednesday, 25 November
Overcast. High 44°, low 40°.
Pressure30.33 inHg
Wind6.9 mph N
Humidity47%
Visibility—
Dew point24°
Thu, 2639° / 28°0.23
39 °
Byrnes Mill, Thursday, 26 November
Snow. High 39°, low 28°.
Pressure30.30 inHg
Wind7 mph N
Humidity83%
Visibility—
Dew point31°
Fri, 2738° / 25°0
38 °
Byrnes Mill, Friday, 27 November
Clear. High 38°, low 25°.
Pressure30.56 inHg
Wind7.1 mph W
Humidity52%
Visibility—
Dew point20°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Sun, 2949° / 35°0.07
49 °
Byrnes Mill, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.07 in
Chance of precipitation27%
Record high72° (1998)
Record low16° (1976)
Mon, 3049° / 34°0.17
49 °
Byrnes Mill, Monday, 30 November
Climate normal for this date — 60-year average.
Average high49°
Average low34°
Average precipitation0.17 in
Chance of precipitation30%
Record high68° (1970)
Record low11° (1964)
Tue, 0148° / 34°0.11
48 °
Byrnes Mill, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.11 in
Chance of precipitation27%
Record high69° (2012)
Record low14° (1985)
Wed, 0249° / 34°0.09
49 °
Byrnes Mill, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high49°
Average low34°
Average precipitation0.09 in
Chance of precipitation23%
Record high72° (2012)
Record low10° (1985)
Thu, 0348° / 34°0.1
48 °
Byrnes Mill, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.1 in
Chance of precipitation30%
Record high73° (1998)
Record low14° (1985)
Fri, 0447° / 33°0.08
47 °
Byrnes Mill, Friday, 4 December
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.08 in
Chance of precipitation27%
Record high70° (1998)
Record low9° (2006)
Sat, 0548° / 32°0.09
48 °
Byrnes Mill, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high48°
Average low32°
Average precipitation0.09 in
Chance of precipitation27%
Record high73° (1998)
Record low14° (2025)
Sun, 0645° / 32°0.06
45 °
Byrnes Mill, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high45°
Average low32°
Average precipitation0.06 in
Chance of precipitation35%
Record high70° (1998)
Record low6° (1977)
Mon, 0744° / 31°0.09
44 °
Byrnes Mill, Monday, 7 December
Climate normal for this date — 60-year average.
Average high44°
Average low31°
Average precipitation0.09 in
Chance of precipitation23%
Record high69° (1980)
Record low0° (1977)
Tue, 0845° / 31°0.08
45 °
Byrnes Mill, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high45°
Average low31°
Average precipitation0.08 in
Chance of precipitation32%
Record high70° (1991)
Record low7° (2006)
Wed, 0945° / 30°0.07
45 °
Byrnes Mill, Wednesday, 9 December
Climate normal for this date — 60-year average.
Average high45°
Average low30°
Average precipitation0.07 in
Chance of precipitation28%
Record high64° (2021)
Record low4° (1977)
Thu, 1045° / 29°0.11
45 °
Byrnes Mill, Thursday, 10 December
Climate normal for this date — 60-year average.
Average high45°
Average low29°
Average precipitation0.11 in
Chance of precipitation27%
Record high68° (1965)
Record low-3° (1977)
Fri, 1145° / 29°0.08
45 °
Byrnes Mill, Friday, 11 December
Climate normal for this date — 60-year average.
Average high45°
Average low29°
Average precipitation0.08 in
Chance of precipitation28%
Record high66° (1979)
Record low10° (1972)
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.