Monthly outlook for New Haven, IN: average high 77.8°, average low 61°. That is 1.4° below the climate normal for August. Precipitation is expected on 4 days (about 3.0 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 9 August (89.5°), the coolest 21 August (51°).
77.8°/61°
Average high / low
−1.4°
Below normal
4 / 5
Wet days / normal
3.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
79.3°
80.6°
-0.7°
18 August – 27 August
75.4°
80.3°
-2.8°
28 August – 6 September
at normal
79.1°
—
August records over 66 years
97.7°17 August 1988All-time high
46°29 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Fort Wayne (7 mi).
Sun, 0989° / 63°0.27
89 °
New Haven, Sunday, 9 August
Rain. High 89°, low 63°.
Pressure30.03 inHg
Wind8.6 mph S
Humidity68%
Visibility6.2 mi
Dew point66°
Mon, 1087° / 66°1.53
87 °
New Haven, Monday, 10 August
Heavy rain. High 87°, low 66°.
Pressure29.94 inHg
Wind10.4 mph S
Humidity82%
Visibility6.2 mi
Dew point73°
Tue, 1179° / 67°0.81
79 °
New Haven, Tuesday, 11 August
Heavy rain. High 79°, low 67°.
Pressure29.85 inHg
Wind17.6 mph SW
Humidity81%
Visibility6.2 mi
Dew point73°
Wed, 1281° / 66°0.37
81 °
New Haven, Wednesday, 12 August
Rain. High 81°, low 66°.
Pressure29.80 inHg
Wind3.9 mph NE
Humidity74%
Visibility6.2 mi
Dew point68°
Thu, 1371° / 57°0
71 °
New Haven, Thursday, 13 August
Partly cloudy. High 71°, low 57°.
Pressure30.03 inHg
Wind7.2 mph N
Humidity60%
Visibility—
Dew point55°
Fri, 1475° / 57°0
75 °
New Haven, Friday, 14 August
Clear. High 75°, low 57°.
Pressure30.12 inHg
Wind6.2 mph NW
Humidity55%
Visibility—
Dew point54°
Sat, 1574° / 56°0
74 °
New Haven, Saturday, 15 August
Light rain. High 74°, low 56°.
Pressure30.27 inHg
Wind7.4 mph N
Humidity73%
Visibility—
Dew point60°
Sun, 1674° / 59°0
74 °
New Haven, Sunday, 16 August
Overcast. High 74°, low 59°.
Pressure30.15 inHg
Wind5.1 mph E
Humidity82%
Visibility—
Dew point62°
Mon, 1777° / 63°0
77 °
New Haven, Monday, 17 August
Overcast. High 77°, low 63°.
Pressure30.06 inHg
Wind4.6 mph W
Humidity68%
Visibility—
Dew point63°
Tue, 1880° / 64°0
80 °
New Haven, Tuesday, 18 August
Partly cloudy. High 80°, low 64°.
Pressure30.00 inHg
Wind6.4 mph SW
Humidity65%
Visibility—
Dew point65°
Wed, 1975° / 62°0.02
75 °
New Haven, Wednesday, 19 August
Light rain. High 75°, low 62°.
Pressure29.85 inHg
Wind14.8 mph NW
Humidity92%
Visibility—
Dew point71°
Thu, 2071° / 58°0
71 °
New Haven, Thursday, 20 August
Overcast. High 71°, low 58°.
Pressure29.97 inHg
Wind12.9 mph NW
Humidity74%
Visibility—
Dew point57°
Fri, 2171° / 51°0
71 °
New Haven, Friday, 21 August
Clear. High 71°, low 51°.
Pressure30.09 inHg
Wind7.6 mph N
Humidity56%
Visibility—
Dew point51°
Sat, 2271° / 53°0.01
71 °
New Haven, Saturday, 22 August
Light rain. High 71°, low 53°.
Pressure29.94 inHg
Wind10.7 mph S
Humidity69%
Visibility—
Dew point58°
Sun, 2384° / 65°0
84 °
New Haven, Sunday, 23 August
Partly cloudy. High 84°, low 65°.
Pressure29.91 inHg
Wind15.9 mph W
Humidity65%
Visibility—
Dew point67°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2480° / 63°0.08
80 °
New Haven, Monday, 24 August
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.08 in
Chance of precipitation22%
Record high94° (2021)
Record low53° (1965)
Tue, 2580° / 63°0.05
80 °
New Haven, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.05 in
Chance of precipitation22%
Record high90° (2021)
Record low50° (2017)
Wed, 2681° / 64°0.11
81 °
New Haven, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.11 in
Chance of precipitation33%
Record high92° (2020)
Record low50° (2017)
Thu, 2781° / 64°0.11
81 °
New Haven, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.11 in
Chance of precipitation38%
Record high92° (2024)
Record low51° (2025)
Fri, 2880° / 64°0.12
80 °
New Haven, Friday, 28 August
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.12 in
Chance of precipitation33%
Record high91° (1990)
Record low47° (1986)
Sat, 2980° / 63°0.1
80 °
New Haven, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.1 in
Chance of precipitation30%
Record high91° (2021)
Record low46° (1986)
Sun, 3079° / 63°0.09
79 °
New Haven, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high79°
Average low63°
Average precipitation0.09 in
Chance of precipitation33%
Record high91° (2024)
Record low47° (1986)
Mon, 3179° / 62°0.07
79 °
New Haven, Monday, 31 August
Climate normal for this date — 60-year average.
Average high79°
Average low62°
Average precipitation0.07 in
Chance of precipitation28%
Record high90° (2012)
Record low48° (2009)
Tue, 0179° / 62°0.15
79 °
New Haven, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high79°
Average low62°
Average precipitation0.15 in
Chance of precipitation23%
Record high94° (2011)
Record low48° (1967)
Wed, 0280° / 62°0.08
80 °
New Haven, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high80°
Average low62°
Average precipitation0.08 in
Chance of precipitation25%
Record high96° (2011)
Record low47° (1965)
Thu, 0379° / 62°0.09
79 °
New Haven, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high79°
Average low62°
Average precipitation0.09 in
Chance of precipitation23%
Record high95° (2011)
Record low49° (1974)
Fri, 0479° / 61°0.07
79 °
New Haven, Friday, 4 September
Climate normal for this date — 60-year average.
Average high79°
Average low61°
Average precipitation0.07 in
Chance of precipitation22%
Record high90° (1960)
Record low46° (1997)
Sat, 0578° / 61°0.03
78 °
New Haven, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high78°
Average low61°
Average precipitation0.03 in
Chance of precipitation22%
Record high90° (2007)
Record low46° (1974)
Sun, 0678° / 61°0.06
78 °
New Haven, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high78°
Average low61°
Average precipitation0.06 in
Chance of precipitation25%
Record high91° (1990)
Record low46° (1984)
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 New Haven, 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 New Haven, 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.