Monthly outlook for Union City, OH: average high 77.1°, average low 61.5°. That is 1.8° below the climate normal for August. Precipitation is expected on 5 days (about 3.1 inches), against a normal of 6 days and 1.7 inches. The warmest day looks like 10 August (90.4°), the coolest 21 August (50.8°).
77.1°/61.5°
Average high / low
−1.8°
Below normal
5 / 6
Wet days / normal
3.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
78.4°
80.4°
-1.1°
19 August – 28 August
74.7°
80.4°
-3.1°
29 August – 7 September
at normal
79°
—
August records over 66 years
96.4°20 August 1983All-time high
44.4°29 August 1965All-time low
Climate normals and records are computed from the nearest reference point — Greenville (11 mi).
Mon, 1090° / 70°0.72
90 °
Union City, Monday, 10 August
Heavy rain. High 90°, low 70°.
Pressure29.97 inHg
Wind16.8 mph SW
Humidity79%
Visibility6.2 mi
Dew point74°
Tue, 1186° / 68°1.19
86 °
Union City, Tuesday, 11 August
Heavy rain. High 86°, low 68°.
Pressure29.91 inHg
Wind10.6 mph SW
Humidity80%
Visibility6.2 mi
Dew point75°
Wed, 1283° / 65°1.02
83 °
Union City, Wednesday, 12 August
Heavy rain. High 83°, low 65°.
Pressure29.80 inHg
Wind4.8 mph N
Humidity80%
Visibility6.2 mi
Dew point73°
Thu, 1373° / 61°0.01
73 °
Union City, Thursday, 13 August
Light rain. High 73°, low 61°.
Pressure30.03 inHg
Wind7.2 mph NE
Humidity72%
Visibility—
Dew point62°
Fri, 1473° / 61°0
73 °
Union City, Friday, 14 August
Light rain. High 73°, low 61°.
Pressure30.09 inHg
Wind5.9 mph NE
Humidity66%
Visibility—
Dew point59°
Sat, 1573° / 57°0
73 °
Union City, Saturday, 15 August
Overcast. High 73°, low 57°.
Pressure30.27 inHg
Wind7 mph W
Humidity61%
Visibility—
Dew point57°
Sun, 1668° / 60°0.02
68 °
Union City, Sunday, 16 August
Light rain. High 68°, low 60°.
Pressure30.15 inHg
Wind5.7 mph SE
Humidity90%
Visibility—
Dew point62°
Mon, 1772° / 64°0.02
72 °
Union City, Monday, 17 August
Light rain. High 72°, low 64°.
Pressure30.06 inHg
Wind5.1 mph W
Humidity92%
Visibility—
Dew point64°
Tue, 1879° / 63°0
79 °
Union City, Tuesday, 18 August
Partly cloudy. High 79°, low 63°.
Pressure30.03 inHg
Wind4.7 mph S
Humidity69%
Visibility—
Dew point66°
Wed, 1979° / 61°0.04
79 °
Union City, Wednesday, 19 August
Light rain. High 79°, low 61°.
Pressure29.88 inHg
Wind13.1 mph W
Humidity78%
Visibility—
Dew point69°
Thu, 2065° / 55°0.01
65 °
Union City, Thursday, 20 August
Light rain. High 65°, low 55°.
Pressure29.97 inHg
Wind12.8 mph N
Humidity74%
Visibility—
Dew point56°
Fri, 2170° / 51°0
70 °
Union City, Friday, 21 August
Clear. High 70°, low 51°.
Pressure30.06 inHg
Wind8.1 mph NW
Humidity64%
Visibility—
Dew point53°
Sat, 2274° / 52°0.02
74 °
Union City, Saturday, 22 August
Light rain. High 74°, low 52°.
Pressure29.94 inHg
Wind12.4 mph SE
Humidity72%
Visibility—
Dew point59°
Sun, 2382° / 66°0
82 °
Union City, Sunday, 23 August
Partly cloudy. High 82°, low 66°.
Pressure29.94 inHg
Wind12.5 mph W
Humidity68%
Visibility—
Dew point67°
Mon, 2479° / 62°0
79 °
Union City, Monday, 24 August
Mostly clear. High 79°, low 62°.
Pressure30.03 inHg
Wind4.5 mph NW
Humidity60%
Visibility—
Dew point62°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2581° / 63°0.06
81 °
Union City, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high81°
Average low63°
Average precipitation0.06 in
Chance of precipitation27%
Record high92° (2020)
Record low51° (1984)
Wed, 2681° / 64°0.08
81 °
Union City, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.08 in
Chance of precipitation30%
Record high90° (2020)
Record low51° (2025)
Thu, 2781° / 65°0.07
81 °
Union City, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.07 in
Chance of precipitation32%
Record high91° (2024)
Record low49° (2025)
Fri, 2881° / 64°0.17
81 °
Union City, Friday, 28 August
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.17 in
Chance of precipitation40%
Record high89° (1990)
Record low50° (1968)
Sat, 2980° / 64°0.12
80 °
Union City, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.12 in
Chance of precipitation37%
Record high91° (2007)
Record low44° (1965)
Sun, 3079° / 63°0.11
79 °
Union City, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high79°
Average low63°
Average precipitation0.11 in
Chance of precipitation28%
Record high92° (2024)
Record low49° (1986)
Mon, 3180° / 62°0.07
80 °
Union City, Monday, 31 August
Climate normal for this date — 60-year average.
Average high80°
Average low62°
Average precipitation0.07 in
Chance of precipitation30%
Record high90° (2012)
Record low49° (2025)
Tue, 0179° / 62°0.08
79 °
Union City, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high79°
Average low62°
Average precipitation0.08 in
Chance of precipitation32%
Record high95° (2011)
Record low48° (1967)
Wed, 0280° / 63°0.09
80 °
Union City, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.09 in
Chance of precipitation27%
Record high96° (2011)
Record low49° (1967)
Thu, 0379° / 62°0.11
79 °
Union City, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high79°
Average low62°
Average precipitation0.11 in
Chance of precipitation28%
Record high94° (2011)
Record low50° (1994)
Fri, 0479° / 62°0.06
79 °
Union City, Friday, 4 September
Climate normal for this date — 60-year average.
Average high79°
Average low62°
Average precipitation0.06 in
Chance of precipitation20%
Record high91° (1999)
Record low47° (1997)
Sat, 0578° / 61°0.07
78 °
Union City, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high78°
Average low61°
Average precipitation0.07 in
Chance of precipitation27%
Record high91° (2007)
Record low46° (1997)
Sun, 0678° / 61°0.03
78 °
Union City, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high78°
Average low61°
Average precipitation0.03 in
Chance of precipitation20%
Record high92° (1998)
Record low46° (1984)
Mon, 0778° / 61°0.07
78 °
Union City, Monday, 7 September
Climate normal for this date — 60-year average.
Average high78°
Average low61°
Average precipitation0.07 in
Chance of precipitation30%
Record high92° (2002)
Record low44° (1988)
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 Union City, 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 Union City, 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.