Porter climate

Porter Weather in August

NOAA 1991-2020 normals for Indiana Dunes Nl, 2.1 km from Porter

Average highs run from 81°F on August 1 to 79°F on August 31, and lows from 64°F to 61°F. Normal precipitation for the month is 4.08 in over about 10 wet days.

August day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Porter, in °F, with the record for each date.406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
80°F
Average low
63°F
Precipitation
4.08 in
Record high
96°FAug 24, 2023
Record low
43°FAug 15, 2014
Chance of a freeze
0%
Days of 90°F or more
2.3
Daylight
14 h 23 min to 13 h 10 min
Cloud cover
52%
Humidity
73%
Dew point
62°F
Wind
7.8 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Aug 181°F64°F92°F 200256°F 199833%0%
Aug 281°F64°F93°F 201553°F 201433%0%
Aug 381°F64°F93°F 201254°F 201433%0%
Aug 481°F64°F95°F 201854°F 202033%0%
Aug 581°F64°F95°F 201853°F 202033%0%
Aug 681°F64°F90°F 200752°F 200433%0%
Aug 781°F64°F93°F 200147°F 200433%0%
Aug 881°F64°F93°F 200154°F 199933%0%
Aug 981°F64°F93°F 200150°F 199933%0%
Aug 1081°F64°F92°F 202152°F 202433%0%
Aug 1180°F64°F92°F 201650°F 200432%0%
Aug 1280°F64°F91°F 202546°F 200432%0%
Aug 1380°F64°F90°F 201050°F 200632%0%
Aug 1480°F63°F90°F 201848°F 201432%0%
Aug 1580°F63°F92°F 200043°F 201432%0%
Aug 1680°F63°F93°F 202548°F 200432%0%
Aug 1780°F63°F87°F 201553°F 201232%0%
Aug 1880°F63°F87°F 201949°F 201232%0%
Aug 1980°F63°F89°F 201951°F 200032%0%
Aug 2080°F63°F91°F 201050°F 202432%0%
Aug 2180°F63°F95°F 200348°F 202432%0%
Aug 2280°F63°F90°F 200747°F 200432%0%
Aug 2380°F63°F93°F 202349°F 202432%0%
Aug 2479°F63°F96°F 202349°F 200932%0%
Aug 2579°F62°F92°F 200348°F 201732%0%
Aug 2679°F62°F93°F 201849°F 200832%0%
Aug 2779°F62°F95°F 202449°F 202532%0%
Aug 2879°F62°F94°F 201852°F 202331%0%
Aug 2979°F62°F94°F 201049°F 202531%0%
Aug 3079°F62°F94°F 201347°F 199931%0%
Aug 3179°F61°F92°F 201043°F 200931%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Porter, in percent, and of at least 0.1 inch of snowfall.0102030401102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

August 1
sunrise 5:43 AM, sunset 8:06 PM
August 31
sunrise 6:13 AM, sunset 7:23 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00124244 (Indiana Dunes Nl), public domain. Records: NOAA GHCN-Daily, station USW00004846, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.