Monthly outlook for La Porte, IN: average high 76.6°, average low 61.3°. That is 0.9° below the climate normal for August. Precipitation is expected on 2 days (about 2.6 inches), against a normal of 6 days and 1.9 inches. The warmest day looks like 10 August (88.7°), the coolest 22 August (51.9°).
76.6°/61.3°
Average high / low
−0.9°
Below normal
2 / 6
Wet days / normal
2.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
78.3°
78.3°
+0°
19 August – 28 August
73.6°
78.3°
-2.6°
29 August – 7 September
at normal
76.7°
—
August records over 66 years
95.9°24 August 2023All-time high
52°25 August 2017All-time low
Climate normals and records are computed from the nearest reference point — Beverly Shores (15 mi).
Mon, 1089° / 70°2.11
89 °
La Porte, Monday, 10 August
Heavy rain. High 89°, low 70°.
Pressure29.88 inHg
Wind7.7 mph W
Humidity75%
Visibility6.2 mi
Dew point74°
Tue, 1179° / 68°0.41
79 °
La Porte, Tuesday, 11 August
Rain. High 79°, low 68°.
Pressure29.85 inHg
Wind18.6 mph W
Humidity93%
Visibility2.5 mi
Dew point70°
Wed, 1279° / 65°0
79 °
La Porte, Wednesday, 12 August
Overcast. High 79°, low 65°.
Pressure29.83 inHg
Wind4.1 mph N
Humidity70%
Visibility6.2 mi
Dew point68°
Thu, 1371° / 56°0
71 °
La Porte, Thursday, 13 August
Overcast. High 71°, low 56°.
Pressure30.03 inHg
Wind7.4 mph E
Humidity59%
Visibility—
Dew point54°
Fri, 1474° / 56°0
74 °
La Porte, Friday, 14 August
Clear. High 74°, low 56°.
Pressure30.12 inHg
Wind7.5 mph N
Humidity54%
Visibility—
Dew point54°
Sat, 1574° / 56°0
74 °
La Porte, Saturday, 15 August
Overcast. High 74°, low 56°.
Pressure30.30 inHg
Wind6.5 mph NE
Humidity65%
Visibility—
Dew point56°
Sun, 1674° / 59°0
74 °
La Porte, Sunday, 16 August
Overcast. High 74°, low 59°.
Pressure30.15 inHg
Wind5 mph SE
Humidity74%
Visibility—
Dew point60°
Mon, 1777° / 63°0.01
77 °
La Porte, Monday, 17 August
Light rain. High 77°, low 63°.
Pressure30.06 inHg
Wind4.4 mph N
Humidity72%
Visibility—
Dew point64°
Tue, 1882° / 63°0
82 °
La Porte, Tuesday, 18 August
Overcast. High 82°, low 63°.
Pressure30.00 inHg
Wind8.8 mph SW
Humidity64%
Visibility—
Dew point65°
Wed, 1972° / 66°0.02
72 °
La Porte, Wednesday, 19 August
Light rain. High 72°, low 66°.
Pressure29.88 inHg
Wind16 mph N
Humidity72%
Visibility—
Dew point60°
Thu, 2068° / 60°0
68 °
La Porte, Thursday, 20 August
Overcast. High 68°, low 60°.
Pressure30.03 inHg
Wind15.6 mph N
Humidity68%
Visibility—
Dew point55°
Fri, 2171° / 55°0
71 °
La Porte, Friday, 21 August
Clear. High 71°, low 55°.
Pressure30.09 inHg
Wind7.5 mph N
Humidity49%
Visibility—
Dew point49°
Sat, 2269° / 52°0.01
69 °
La Porte, Saturday, 22 August
Light rain. High 69°, low 52°.
Pressure29.91 inHg
Wind14.4 mph SE
Humidity82%
Visibility—
Dew point59°
Sun, 2382° / 64°0
82 °
La Porte, Sunday, 23 August
Clear. High 82°, low 64°.
Pressure29.88 inHg
Wind16.2 mph W
Humidity57%
Visibility—
Dew point63°
Mon, 2480° / 63°0
80 °
La Porte, Monday, 24 August
Partly cloudy. High 80°, low 63°.
Pressure30.03 inHg
Wind5.3 mph W
Humidity53%
Visibility—
Dew point59°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2579° / 67°0.11
79 °
La Porte, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high79°
Average low67°
Average precipitation0.11 in
Chance of precipitation33%
Record high89° (2024)
Record low52° (2017)
Wed, 2679° / 69°0.14
79 °
La Porte, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high79°
Average low69°
Average precipitation0.14 in
Chance of precipitation33%
Record high92° (2024)
Record low56° (2017)
Thu, 2779° / 69°0.13
79 °
La Porte, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high79°
Average low69°
Average precipitation0.13 in
Chance of precipitation33%
Record high93° (2024)
Record low55° (2025)
Fri, 2878° / 68°0.13
78 °
La Porte, Friday, 28 August
Climate normal for this date — 60-year average.
Average high78°
Average low68°
Average precipitation0.13 in
Chance of precipitation35%
Record high89° (2021)
Record low53° (1986)
Sat, 2978° / 68°0.11
78 °
La Porte, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high78°
Average low68°
Average precipitation0.11 in
Chance of precipitation37%
Record high89° (2022)
Record low54° (1965)
Sun, 3078° / 68°0.08
78 °
La Porte, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high78°
Average low68°
Average precipitation0.08 in
Chance of precipitation30%
Record high90° (1995)
Record low57° (2025)
Mon, 3177° / 66°0.07
77 °
La Porte, Monday, 31 August
Climate normal for this date — 60-year average.
Average high77°
Average low66°
Average precipitation0.07 in
Chance of precipitation27%
Record high87° (1969)
Record low54° (2025)
Tue, 0177° / 66°0.17
77 °
La Porte, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high77°
Average low66°
Average precipitation0.17 in
Chance of precipitation30%
Record high90° (2011)
Record low54° (2017)
Wed, 0277° / 67°0.07
77 °
La Porte, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high77°
Average low67°
Average precipitation0.07 in
Chance of precipitation25%
Record high87° (2008)
Record low52° (2017)
Thu, 0377° / 67°0.07
77 °
La Porte, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high77°
Average low67°
Average precipitation0.07 in
Chance of precipitation32%
Record high89° (2023)
Record low56° (2024)
Fri, 0476° / 66°0.09
76 °
La Porte, Friday, 4 September
Climate normal for this date — 60-year average.
Average high76°
Average low66°
Average precipitation0.09 in
Chance of precipitation33%
Record high88° (2018)
Record low56° (2025)
Sat, 0576° / 66°0.07
76 °
La Porte, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high76°
Average low66°
Average precipitation0.07 in
Chance of precipitation25%
Record high88° (2007)
Record low56° (2019)
Sun, 0676° / 66°0.11
76 °
La Porte, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high76°
Average low66°
Average precipitation0.11 in
Chance of precipitation35%
Record high88° (1990)
Record low52° (2025)
Mon, 0776° / 65°0.11
76 °
La Porte, Monday, 7 September
Climate normal for this date — 60-year average.
Average high76°
Average low65°
Average precipitation0.11 in
Chance of precipitation38%
Record high90° (1960)
Record low54° (2025)
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 La Porte, 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 La Porte, 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.