Monthly outlook for Costonia, OH: average high 59.5°, average low 46.2°. That is 3° above the climate normal for October. Precipitation is expected on 6 days (about 1.7 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 29 October (74.7°), the coolest 10 November (35.1°).
59.5°/46.2°
Average high / low
+3°
Above normal
6 / 5
Wet days / normal
1.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
28 October – 6 November
66.1°
55.7°
+5.8°
7 November – 16 November
48.5°
50.3°
-1°
17 November – 26 November
at normal
47.2°
—
October records over 66 years
87.3°1 October 2019All-time high
25.5°28 October 1976All-time low
Climate normals and records are computed from the nearest reference point — East Springfield (13 mi).
Thu, 2975° / 47°0
75 °
Costonia, Thursday, 29 October
Light rain. High 75°, low 47°.
Pressure30.18 inHg
Wind7.6 mph SW
Humidity56%
Visibility6.2 mi
Dew point51°
Fri, 3065° / 47°0.01
65 °
Costonia, Friday, 30 October
Light rain. High 65°, low 47°.
Pressure30.30 inHg
Wind6.6 mph NW
Humidity54%
Visibility6.2 mi
Dew point42°
Sat, 3155° / 44°0
55 °
Costonia, Saturday, 31 October
Overcast. High 55°, low 44°.
Pressure30.47 inHg
Wind4.9 mph E
Humidity63%
Visibility6.2 mi
Dew point40°
Sun, 0169° / 51°0
69 °
Costonia, Sunday, 1 November
Overcast. High 69°, low 51°.
Pressure30.39 inHg
Wind4.1 mph S
Humidity49%
Visibility6.2 mi
Dew point42°
Mon, 0268° / 47°0
68 °
Costonia, Monday, 2 November
Overcast. High 68°, low 47°.
Pressure30.24 inHg
Wind7.2 mph S
Humidity40%
Visibility—
Dew point40°
Tue, 0367° / 56°0
67 °
Costonia, Tuesday, 3 November
Overcast. High 67°, low 56°.
Pressure30.00 inHg
Wind12.5 mph S
Humidity63%
Visibility—
Dew point53°
Wed, 0468° / 55°0.09
68 °
Costonia, Wednesday, 4 November
Light rain. High 68°, low 55°.
Pressure30.03 inHg
Wind9.4 mph SE
Humidity66%
Visibility—
Dew point55°
Thu, 0563° / 59°1.21
63 °
Costonia, Thursday, 5 November
Rain. High 63°, low 59°.
Pressure29.74 inHg
Wind13.4 mph SE
Humidity95%
Visibility—
Dew point61°
Fri, 0659° / 55°0.02
59 °
Costonia, Friday, 6 November
Light rain. High 59°, low 55°.
Pressure29.68 inHg
Wind10 mph S
Humidity85%
Visibility—
Dew point53°
Sat, 0750° / 41°0.05
50 °
Costonia, Saturday, 7 November
Light rain. High 50°, low 41°.
Pressure29.97 inHg
Wind10 mph NW
Humidity82%
Visibility—
Dew point39°
Sun, 0849° / 41°0
49 °
Costonia, Sunday, 8 November
Overcast. High 49°, low 41°.
Pressure30.06 inHg
Wind9.8 mph NW
Humidity53%
Visibility—
Dew point31°
Mon, 0951° / 37°0
51 °
Costonia, Monday, 9 November
Partly cloudy. High 51°, low 37°.
Pressure29.94 inHg
Wind8.4 mph NW
Humidity57%
Visibility—
Dew point35°
Tue, 1045° / 35°0.22
45 °
Costonia, Tuesday, 10 November
Light rain. High 45°, low 35°.
Pressure29.59 inHg
Wind11.7 mph S
Humidity86%
Visibility—
Dew point40°
Wed, 1147° / 40°0.04
47 °
Costonia, Wednesday, 11 November
Light rain. High 47°, low 40°.
Pressure29.74 inHg
Wind15.2 mph SW
Humidity78%
Visibility—
Dew point36°
Thu, 1249° / 37°0.08
49 °
Costonia, Thursday, 12 November
Light rain. High 49°, low 37°.
Pressure29.80 inHg
Wind10.7 mph SW
Humidity75%
Visibility—
Dew point40°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 1348° / 34°0.06
48 °
Costonia, Friday, 13 November
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.06 in
Chance of precipitation30%
Record high66° (1989)
Record low9° (2019)
Sat, 1449° / 35°0.1
49 °
Costonia, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.1 in
Chance of precipitation28%
Record high67° (2011)
Record low16° (1986)
Sun, 1549° / 35°0.15
49 °
Costonia, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.15 in
Chance of precipitation52%
Record high68° (1971)
Record low18° (1996)
Mon, 1648° / 35°0.15
48 °
Costonia, Monday, 16 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.15 in
Chance of precipitation30%
Record high69° (1988)
Record low20° (1995)
Tue, 1748° / 35°0.12
48 °
Costonia, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.12 in
Chance of precipitation33%
Record high64° (2021)
Record low15° (2014)
Wed, 1848° / 35°0.07
48 °
Costonia, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.07 in
Chance of precipitation35%
Record high68° (2016)
Record low9° (2014)
Thu, 1949° / 35°0.13
49 °
Costonia, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.13 in
Chance of precipitation37%
Record high70° (1985)
Record low7° (2014)
Fri, 2048° / 35°0.1
48 °
Costonia, Friday, 20 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.1 in
Chance of precipitation38%
Record high69° (1991)
Record low18° (2022)
Sat, 2146° / 34°0.09
46 °
Costonia, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high46°
Average low34°
Average precipitation0.09 in
Chance of precipitation33%
Record high65° (1979)
Record low16° (2014)
Sun, 2246° / 33°0.1
46 °
Costonia, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.1 in
Chance of precipitation40%
Record high67° (1999)
Record low11° (2014)
Mon, 2347° / 32°0.06
47 °
Costonia, Monday, 23 November
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.06 in
Chance of precipitation30%
Record high67° (1999)
Record low17° (2000)
Tue, 2446° / 32°0.11
46 °
Costonia, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.11 in
Chance of precipitation38%
Record high64° (2001)
Record low15° (2005)
Wed, 2546° / 33°0.14
46 °
Costonia, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.14 in
Chance of precipitation38%
Record high63° (1987)
Record low11° (2005)
Thu, 2648° / 34°0.17
48 °
Costonia, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.17 in
Chance of precipitation43%
Record high62° (1988)
Record low19° (1971)
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 Costonia, OH 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 Costonia, OH 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.