Monthly outlook for Costonia, OH: average high 59.6°, average low 44.5°. That is 3° above the climate normal for October. Precipitation is expected on 5 days (about 1.9 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 29 October (74.4°), the coolest 12 November (32.1°).
59.6°/44.5°
Average high / low
+3°
Above normal
5 / 5
Wet days / normal
1.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
28 October – 6 November
65.8°
55.7°
+5.6°
7 November – 16 November
49.2°
50.3°
-0.6°
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, 2974° / 46°0
74 °
Costonia, Thursday, 29 October
Clear. High 74°, low 46°.
Pressure30.21 inHg
Wind7.6 mph SW
Humidity57%
Visibility6.2 mi
Dew point51°
Fri, 3063° / 48°0
63 °
Costonia, Friday, 30 October
Light rain. High 63°, low 48°.
Pressure30.30 inHg
Wind5.8 mph N
Humidity56%
Visibility6.2 mi
Dew point44°
Sat, 3157° / 44°0
57 °
Costonia, Saturday, 31 October
Overcast. High 57°, low 44°.
Pressure30.42 inHg
Wind5.1 mph E
Humidity68%
Visibility6.2 mi
Dew point43°
Sun, 0169° / 49°0
69 °
Costonia, Sunday, 1 November
Clear. High 69°, low 49°.
Pressure30.33 inHg
Wind3.4 mph SW
Humidity55%
Visibility6.2 mi
Dew point46°
Mon, 0271° / 47°0
71 °
Costonia, Monday, 2 November
Clear. High 71°, low 47°.
Pressure30.24 inHg
Wind4.4 mph SE
Humidity51%
Visibility—
Dew point49°
Tue, 0362° / 52°0
62 °
Costonia, Tuesday, 3 November
Overcast. High 62°, low 52°.
Pressure30.09 inHg
Wind7.4 mph S
Humidity66%
Visibility—
Dew point49°
Wed, 0465° / 51°0
65 °
Costonia, Wednesday, 4 November
Light rain. High 65°, low 51°.
Pressure29.97 inHg
Wind13 mph SE
Humidity72%
Visibility—
Dew point53°
Thu, 0563° / 59°0.13
63 °
Costonia, Thursday, 5 November
Light rain. High 63°, low 59°.
Pressure29.44 inHg
Wind15.7 mph SE
Humidity87%
Visibility—
Dew point58°
Fri, 0660° / 42°0.26
60 °
Costonia, Friday, 6 November
Rain. High 60°, low 42°.
Pressure29.71 inHg
Wind14.9 mph W
Humidity54%
Visibility—
Dew point37°
Sat, 0750° / 37°0
50 °
Costonia, Saturday, 7 November
Clear. High 50°, low 37°.
Pressure30.00 inHg
Wind12.7 mph W
Humidity43%
Visibility—
Dew point26°
Sun, 0852° / 33°0
52 °
Costonia, Sunday, 8 November
Mostly clear. High 52°, low 33°.
Pressure30.18 inHg
Wind8 mph W
Humidity39%
Visibility—
Dew point26°
Mon, 0955° / 44°0.06
55 °
Costonia, Monday, 9 November
Light rain. High 55°, low 44°.
Pressure29.97 inHg
Wind10.6 mph SW
Humidity55%
Visibility—
Dew point38°
Tue, 1053° / 47°1.35
53 °
Costonia, Tuesday, 10 November
Rain. High 53°, low 47°.
Pressure29.68 inHg
Wind12.4 mph NW
Humidity98%
Visibility—
Dew point52°
Wed, 1144° / 35°0.1
44 °
Costonia, Wednesday, 11 November
Light rain. High 44°, low 35°.
Pressure29.80 inHg
Wind11.3 mph NW
Humidity73%
Visibility—
Dew point35°
Thu, 1241° / 32°0
41 °
Costonia, Thursday, 12 November
Overcast. High 41°, low 32°.
Pressure29.94 inHg
Wind13.6 mph W
Humidity62%
Visibility—
Dew point28°
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.