Monthly outlook for Manchester, IN: average high 87.6°, average low 68.3°. That is 3° above the climate normal for August. Precipitation is expected on 4 days (about 2.1 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 23 August (100.7°), the coolest 15 August (59.8°).
87.6°/68.3°
Average high / low
+3°
Above normal
4 / 5
Wet days / normal
2.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
83.2°
82.3°
+0.5°
19 August – 28 August
95.1°
82.4°
+7°
29 August – 7 September
at normal
80.6°
—
August records over 66 years
99°17 August 1988All-time high
48.9°29 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Moores Hill (5 mi).
Mon, 1092° / 73°0
92 °
Manchester, Monday, 10 August
Clear. High 92°, low 73°.
Pressure30.00 inHg
Wind12 mph SW
Humidity59%
Visibility6.2 mi
Dew point71°
Tue, 1193° / 71°0.24
93 °
Manchester, Tuesday, 11 August
Rain. High 93°, low 71°.
Pressure29.94 inHg
Wind10.6 mph W
Humidity58%
Visibility6.2 mi
Dew point70°
Wed, 1288° / 65°0.21
88 °
Manchester, Wednesday, 12 August
Light rain. High 88°, low 65°.
Pressure29.80 inHg
Wind7.7 mph W
Humidity65%
Visibility6.2 mi
Dew point70°
Thu, 1383° / 64°0
83 °
Manchester, Thursday, 13 August
Clear. High 83°, low 64°.
Pressure29.94 inHg
Wind10.8 mph NE
Humidity44%
Visibility—
Dew point56°
Fri, 1468° / 62°1.49
68 °
Manchester, Friday, 14 August
Heavy rain. High 68°, low 62°.
Pressure30.15 inHg
Wind6.6 mph NE
Humidity97%
Visibility—
Dew point62°
Sat, 1574° / 60°0
74 °
Manchester, Saturday, 15 August
Overcast. High 74°, low 60°.
Pressure30.27 inHg
Wind9 mph E
Humidity59%
Visibility—
Dew point52°
Sun, 1681° / 60°0.07
81 °
Manchester, Sunday, 16 August
Light rain. High 81°, low 60°.
Pressure30.09 inHg
Wind5.7 mph NE
Humidity62%
Visibility—
Dew point61°
Mon, 1781° / 66°0.02
81 °
Manchester, Monday, 17 August
Light rain. High 81°, low 66°.
Pressure30.06 inHg
Wind6.2 mph N
Humidity63%
Visibility—
Dew point64°
Tue, 1882° / 63°0
82 °
Manchester, Tuesday, 18 August
Clear. High 82°, low 63°.
Pressure30.03 inHg
Wind5.7 mph NE
Humidity51%
Visibility—
Dew point60°
Wed, 1988° / 64°0
88 °
Manchester, Wednesday, 19 August
Clear. High 88°, low 64°.
Pressure30.03 inHg
Wind5.5 mph S
Humidity45%
Visibility—
Dew point60°
Thu, 2098° / 70°0
98 °
Manchester, Thursday, 20 August
Overcast. High 98°, low 70°.
Pressure29.91 inHg
Wind10.7 mph SW
Humidity56%
Visibility—
Dew point69°
Fri, 2194° / 76°0
94 °
Manchester, Friday, 21 August
Overcast. High 94°, low 76°.
Pressure29.85 inHg
Wind9.3 mph W
Humidity43%
Visibility—
Dew point66°
Sat, 2297° / 73°0
97 °
Manchester, Saturday, 22 August
Partly cloudy. High 97°, low 73°.
Pressure29.91 inHg
Wind6.4 mph E
Humidity47%
Visibility—
Dew point68°
Sun, 23101° / 78°0
101 °
Manchester, Sunday, 23 August
Partly cloudy. High 101°, low 78°.
Pressure29.88 inHg
Wind7.1 mph SW
Humidity37%
Visibility—
Dew point65°
Mon, 2493° / 78°0
93 °
Manchester, Monday, 24 August
Overcast. High 93°, low 78°.
Pressure30.03 inHg
Wind10.9 mph N
Humidity62%
Visibility—
Dew point71°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2583° / 66°0.07
83 °
Manchester, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high83°
Average low66°
Average precipitation0.07 in
Chance of precipitation30%
Record high92° (1998)
Record low56° (1984)
Wed, 2683° / 66°0.08
83 °
Manchester, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high83°
Average low66°
Average precipitation0.08 in
Chance of precipitation35%
Record high91° (1983)
Record low53° (2025)
Thu, 2783° / 67°0.09
83 °
Manchester, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high83°
Average low67°
Average precipitation0.09 in
Chance of precipitation35%
Record high94° (2024)
Record low52° (2025)
Fri, 2883° / 66°0.13
83 °
Manchester, Friday, 28 August
Climate normal for this date — 60-year average.
Average high83°
Average low66°
Average precipitation0.13 in
Chance of precipitation32%
Record high94° (2024)
Record low52° (1986)
Sat, 2982° / 66°0.13
82 °
Manchester, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high82°
Average low66°
Average precipitation0.13 in
Chance of precipitation42%
Record high94° (2007)
Record low49° (1986)
Sun, 3081° / 65°0.12
81 °
Manchester, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.12 in
Chance of precipitation33%
Record high96° (2024)
Record low51° (1986)
Mon, 3181° / 65°0.08
81 °
Manchester, Monday, 31 August
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.08 in
Chance of precipitation28%
Record high91° (1995)
Record low54° (2009)
Tue, 0181° / 64°0.09
81 °
Manchester, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.09 in
Chance of precipitation28%
Record high94° (2011)
Record low51° (1967)
Wed, 0281° / 65°0.13
81 °
Manchester, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.13 in
Chance of precipitation33%
Record high94° (2011)
Record low52° (2017)
Thu, 0381° / 64°0.12
81 °
Manchester, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.12 in
Chance of precipitation27%
Record high96° (2011)
Record low53° (1974)
Fri, 0480° / 64°0.07
80 °
Manchester, Friday, 4 September
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.07 in
Chance of precipitation27%
Record high92° (2007)
Record low51° (1997)
Sat, 0580° / 63°0.11
80 °
Manchester, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.11 in
Chance of precipitation32%
Record high94° (2007)
Record low52° (1997)
Sun, 0680° / 63°0.04
80 °
Manchester, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.04 in
Chance of precipitation17%
Record high94° (1998)
Record low51° (1962)
Mon, 0780° / 63°0.03
80 °
Manchester, Monday, 7 September
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.03 in
Chance of precipitation17%
Record high92° (2002)
Record low50° (2017)
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 Manchester, IN 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 Manchester, IN 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.