Monthly outlook for Marshallville, OH: average high 80.5°, average low 62.1°. That is 0.6° above the climate normal for August. Precipitation is expected on 4 days (about 2.8 inches), against a normal of 6 days and 1.7 inches. The warmest day looks like 23 August (94°), the coolest 16 August (52.6°).
80.5°/62.1°
Average high / low
+0.6°
Above normal
4 / 6
Wet days / normal
2.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
77°
79.8°
-1.6°
19 August – 28 August
86.5°
79.4°
+3.9°
29 August – 7 September
at normal
77.7°
—
August records over 66 years
96.6°17 August 1988All-time high
46.2°29 August 1982All-time low
Climate normals and records are computed from the nearest reference point — Portage Lakes (13 mi).
Mon, 1086° / 65°1.8
86 °
Marshallville, Monday, 10 August
Heavy rain. High 86°, low 65°.
Pressure29.97 inHg
Wind15.2 mph SW
Humidity71%
Visibility6.2 mi
Dew point69°
Tue, 1184° / 64°0.75
84 °
Marshallville, Tuesday, 11 August
Heavy rain. High 84°, low 64°.
Pressure29.94 inHg
Wind6 mph SW
Humidity72%
Visibility6.2 mi
Dew point69°
Wed, 1279° / 63°0.11
79 °
Marshallville, Wednesday, 12 August
Light rain. High 79°, low 63°.
Pressure29.80 inHg
Wind4.5 mph W
Humidity91%
Visibility6.2 mi
Dew point68°
Thu, 1371° / 61°0.02
71 °
Marshallville, Thursday, 13 August
Light rain. High 71°, low 61°.
Pressure29.97 inHg
Wind12.4 mph N
Humidity62%
Visibility—
Dew point56°
Fri, 1471° / 55°0
71 °
Marshallville, Friday, 14 August
Overcast. High 71°, low 55°.
Pressure30.12 inHg
Wind10.6 mph N
Humidity57%
Visibility—
Dew point53°
Sat, 1570° / 54°0
70 °
Marshallville, Saturday, 15 August
Overcast. High 70°, low 54°.
Pressure30.27 inHg
Wind8.4 mph N
Humidity55%
Visibility—
Dew point51°
Sun, 1669° / 53°0.04
69 °
Marshallville, Sunday, 16 August
Light rain. High 69°, low 53°.
Pressure30.18 inHg
Wind5.9 mph SE
Humidity63%
Visibility—
Dew point51°
Mon, 1775° / 55°0
75 °
Marshallville, Monday, 17 August
Overcast. High 75°, low 55°.
Pressure30.03 inHg
Wind8.9 mph NW
Humidity62%
Visibility—
Dew point59°
Tue, 1878° / 60°0.03
78 °
Marshallville, Tuesday, 18 August
Light rain. High 78°, low 60°.
Pressure30.06 inHg
Wind7.3 mph N
Humidity62%
Visibility—
Dew point61°
Wed, 1982° / 60°0
82 °
Marshallville, Wednesday, 19 August
Overcast. High 82°, low 60°.
Pressure30.06 inHg
Wind5.8 mph SE
Humidity56%
Visibility—
Dew point61°
Thu, 2086° / 66°0.02
86 °
Marshallville, Thursday, 20 August
Light rain. High 86°, low 66°.
Pressure29.91 inHg
Wind12 mph S
Humidity55%
Visibility—
Dew point65°
Fri, 2189° / 70°0
89 °
Marshallville, Friday, 21 August
Partly cloudy. High 89°, low 70°.
Pressure29.83 inHg
Wind11.3 mph N
Humidity66%
Visibility—
Dew point74°
Sat, 2287° / 64°0
87 °
Marshallville, Saturday, 22 August
Partly cloudy. High 87°, low 64°.
Pressure29.97 inHg
Wind6.5 mph NE
Humidity50%
Visibility—
Dew point61°
Sun, 2394° / 70°0
94 °
Marshallville, Sunday, 23 August
Overcast. High 94°, low 70°.
Pressure29.94 inHg
Wind9.8 mph S
Humidity70%
Visibility—
Dew point72°
Mon, 2481° / 70°0
81 °
Marshallville, Monday, 24 August
Overcast. High 81°, low 70°.
Pressure30.00 inHg
Wind12.6 mph N
Humidity74%
Visibility—
Dew point71°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2580° / 63°0.1
80 °
Marshallville, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.1 in
Chance of precipitation33%
Record high89° (1983)
Record low51° (1987)
Wed, 2680° / 63°0.07
80 °
Marshallville, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.07 in
Chance of precipitation23%
Record high90° (1993)
Record low53° (1977)
Thu, 2780° / 64°0.13
80 °
Marshallville, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.13 in
Chance of precipitation35%
Record high93° (2024)
Record low53° (1969)
Fri, 2880° / 64°0.16
80 °
Marshallville, Friday, 28 August
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.16 in
Chance of precipitation42%
Record high91° (1973)
Record low51° (1986)
Sat, 2979° / 63°0.13
79 °
Marshallville, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high79°
Average low63°
Average precipitation0.13 in
Chance of precipitation35%
Record high90° (1973)
Record low46° (1982)
Sun, 3078° / 62°0.12
78 °
Marshallville, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high78°
Average low62°
Average precipitation0.12 in
Chance of precipitation30%
Record high92° (1993)
Record low48° (1986)
Mon, 3178° / 62°0.13
78 °
Marshallville, Monday, 31 August
Climate normal for this date — 60-year average.
Average high78°
Average low62°
Average precipitation0.13 in
Chance of precipitation33%
Record high91° (2012)
Record low51° (1976)
Tue, 0178° / 62°0.09
78 °
Marshallville, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high78°
Average low62°
Average precipitation0.09 in
Chance of precipitation28%
Record high89° (1973)
Record low49° (1967)
Wed, 0278° / 62°0.13
78 °
Marshallville, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high78°
Average low62°
Average precipitation0.13 in
Chance of precipitation42%
Record high93° (2011)
Record low51° (1967)
Thu, 0378° / 61°0.11
78 °
Marshallville, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high78°
Average low61°
Average precipitation0.11 in
Chance of precipitation33%
Record high94° (2011)
Record low49° (1987)
Fri, 0477° / 61°0.09
77 °
Marshallville, Friday, 4 September
Climate normal for this date — 60-year average.
Average high77°
Average low61°
Average precipitation0.09 in
Chance of precipitation25%
Record high91° (1973)
Record low50° (1997)
Sat, 0577° / 61°0.07
77 °
Marshallville, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high77°
Average low61°
Average precipitation0.07 in
Chance of precipitation30%
Record high89° (2018)
Record low48° (1974)
Sun, 0677° / 61°0.07
77 °
Marshallville, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high77°
Average low61°
Average precipitation0.07 in
Chance of precipitation30%
Record high92° (1998)
Record low48° (1984)
Mon, 0776° / 60°0.13
76 °
Marshallville, Monday, 7 September
Climate normal for this date — 60-year average.
Average high76°
Average low60°
Average precipitation0.13 in
Chance of precipitation37%
Record high89° (2010)
Record low46° (1962)
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 Marshallville, 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 Marshallville, 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.