Monthly outlook for Old Mines, MO: average high 64.7°, average low 48°. That is 2.3° above the climate normal for October. Precipitation is expected on 4 days (about 0.9 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 29 October (78.2°), the coolest 7 November (24.5°).
64.7°/48°
Average high / low
+2.3°
Above normal
4 / 5
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
24 October – 2 November
74.1°
61.9°
+6.8°
3 November – 12 November
48.9°
57.4°
-4.7°
13 November – 22 November
at normal
53.9°
—
October records over 66 years
91.4°11 October 1963All-time high
26.8°31 October 2023All-time low
Climate normals and records are computed from the nearest reference point — Potosi (6 mi).
Sun, 2577° / 45°0
77 °
Old Mines, Sunday, 25 October
Overcast. High 77°, low 45°.
Pressure30.39 inHg
Wind2.5 mph SW
Humidity35%
Visibility6.2 mi
Dew point46°
Mon, 2674° / 56°0
74 °
Old Mines, Monday, 26 October
Overcast. High 74°, low 56°.
Pressure30.30 inHg
Wind5.1 mph SW
Humidity39%
Visibility6.2 mi
Dew point47°
Tue, 2771° / 52°0
71 °
Old Mines, Tuesday, 27 October
Overcast. High 71°, low 52°.
Pressure30.21 inHg
Wind7.1 mph S
Humidity44%
Visibility6.2 mi
Dew point48°
Wed, 2875° / 53°0
75 °
Old Mines, Wednesday, 28 October
Clear. High 75°, low 53°.
Pressure30.18 inHg
Wind7.3 mph S
Humidity40%
Visibility—
Dew point46°
Thu, 2978° / 57°0
78 °
Old Mines, Thursday, 29 October
Overcast. High 78°, low 57°.
Pressure30.18 inHg
Wind8.2 mph S
Humidity39%
Visibility—
Dew point48°
Fri, 3078° / 60°0
78 °
Old Mines, Friday, 30 October
Overcast. High 78°, low 60°.
Pressure30.18 inHg
Wind6.8 mph SW
Humidity28%
Visibility—
Dew point40°
Sat, 3170° / 59°0.2
70 °
Old Mines, Saturday, 31 October
Rain. High 70°, low 59°.
Pressure30.09 inHg
Wind10.1 mph S
Humidity39%
Visibility—
Dew point43°
Sun, 0170° / 59°0.08
70 °
Old Mines, Sunday, 1 November
Light rain. High 70°, low 59°.
Pressure30.09 inHg
Wind11.7 mph S
Humidity72%
Visibility—
Dew point58°
Mon, 0271° / 58°0.01
71 °
Old Mines, Monday, 2 November
Light rain. High 71°, low 58°.
Pressure29.97 inHg
Wind6.9 mph SE
Humidity60%
Visibility—
Dew point55°
Tue, 0355° / 45°0.48
55 °
Old Mines, Tuesday, 3 November
Rain. High 55°, low 45°.
Pressure29.88 inHg
Wind13.5 mph NW
Humidity47%
Visibility—
Dew point33°
Wed, 0450° / 43°0.11
50 °
Old Mines, Wednesday, 4 November
Light rain. High 50°, low 43°.
Pressure29.85 inHg
Wind10.3 mph N
Humidity89%
Visibility—
Dew point45°
Thu, 0553° / 39°0.03
53 °
Old Mines, Thursday, 5 November
Light rain. High 53°, low 39°.
Pressure30.03 inHg
Wind12 mph NW
Humidity41%
Visibility—
Dew point28°
Fri, 0641° / 29°0
41 °
Old Mines, Friday, 6 November
Partly cloudy. High 41°, low 29°.
Pressure30.42 inHg
Wind10.7 mph NW
Humidity30%
Visibility—
Dew point10°
Sat, 0747° / 25°0
47 °
Old Mines, Saturday, 7 November
Overcast. High 47°, low 25°.
Pressure30.47 inHg
Wind10 mph S
Humidity29%
Visibility—
Dew point12°
Sun, 0848° / 40°0
48 °
Old Mines, Sunday, 8 November
Light rain. High 48°, low 40°.
Pressure30.12 inHg
Wind12.7 mph S
Humidity46%
Visibility—
Dew point26°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0959° / 43°0.08
59 °
Old Mines, Monday, 9 November
Climate normal for this date — 60-year average.
Average high59°
Average low43°
Average precipitation0.08 in
Chance of precipitation28%
Record high77° (2022)
Record low17° (1991)
Tue, 1057° / 41°0.11
57 °
Old Mines, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high57°
Average low41°
Average precipitation0.11 in
Chance of precipitation25%
Record high74° (1999)
Record low18° (2018)
Wed, 1156° / 39°0.09
56 °
Old Mines, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high56°
Average low39°
Average precipitation0.09 in
Chance of precipitation23%
Record high77° (1989)
Record low22° (2019)
Thu, 1254° / 38°0.07
54 °
Old Mines, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high54°
Average low38°
Average precipitation0.07 in
Chance of precipitation22%
Record high73° (1999)
Record low11° (2019)
Fri, 1354° / 38°0.05
54 °
Old Mines, Friday, 13 November
Climate normal for this date — 60-year average.
Average high54°
Average low38°
Average precipitation0.05 in
Chance of precipitation23%
Record high79° (1999)
Record low11° (1986)
Sat, 1455° / 39°0.09
55 °
Old Mines, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high55°
Average low39°
Average precipitation0.09 in
Chance of precipitation25%
Record high77° (1971)
Record low15° (1986)
Sun, 1555° / 39°0.17
55 °
Old Mines, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high55°
Average low39°
Average precipitation0.17 in
Chance of precipitation33%
Record high79° (2025)
Record low23° (2014)
Mon, 1654° / 38°0.13
54 °
Old Mines, Monday, 16 November
Climate normal for this date — 60-year average.
Average high54°
Average low38°
Average precipitation0.13 in
Chance of precipitation25%
Record high72° (2001)
Record low19° (1997)
Tue, 1755° / 39°0.12
55 °
Old Mines, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high55°
Average low39°
Average precipitation0.12 in
Chance of precipitation28%
Record high75° (2016)
Record low8° (1997)
Wed, 1854° / 39°0.15
54 °
Old Mines, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.15 in
Chance of precipitation37%
Record high76° (2025)
Record low14° (2014)
Thu, 1954° / 39°0.08
54 °
Old Mines, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.08 in
Chance of precipitation32%
Record high71° (1985)
Record low13° (1980)
Fri, 2053° / 39°0.12
53 °
Old Mines, Friday, 20 November
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.12 in
Chance of precipitation28%
Record high69° (2020)
Record low18° (2022)
Sat, 2152° / 38°0.07
52 °
Old Mines, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.07 in
Chance of precipitation25%
Record high70° (1990)
Record low17° (1964)
Sun, 2252° / 37°0.1
52 °
Old Mines, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.1 in
Chance of precipitation28%
Record high68° (2010)
Record low16° (1964)
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 Old Mines, 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 Old Mines, 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.