Hillsboro climate

Hillsboro Weather in August

NOAA 1991-2020 normals for Forest, 13.9 km from Hillsboro

Average highs run from 91°F on August 1 to 90°F on August 31, and lows from 68°F to 66°F.

August day by day

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

Normal daily high and low temperature at Hillsboro, in °F, with the record for each date.406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
91°F
Average low
67°F
Record high
107°FAug 16, 2007
Record low
46°FAug 25, 1891
Chance of a freeze
0%
Days of 90°F or more
21.3
Daylight
13 h 43 min to 12 h 52 min
Cloud cover
50%
Humidity
73%
Dew point
70°F
Wind
3.1 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 191°F68°F102°F 192160°F 19710%
Aug 291°F68°F102°F 193761°F 19120%
Aug 391°F68°F104°F 201058°F 19760%
Aug 491°F68°F104°F 201054°F 20040%
Aug 591°F68°F102°F 194754°F 20040%
Aug 691°F68°F103°F 194753°F 19150%
Aug 791°F68°F104°F 193060°F 19480%
Aug 891°F68°F105°F 193059°F 19890%
Aug 991°F68°F102°F 193556°F 19900%
Aug 1091°F68°F102°F 195657°F 19890%
Aug 1191°F68°F104°F 200759°F 19670%
Aug 1291°F68°F104°F 195455°F 19670%
Aug 1391°F68°F103°F 195455°F 20040%
Aug 1491°F68°F104°F 200754°F 20040%
Aug 1591°F68°F105°F 200752°F 19290%
Aug 1691°F68°F107°F 200757°F 19290%
Aug 1791°F68°F103°F 195155°F 20040%
Aug 1891°F67°F103°F 190256°F 20040%
Aug 1991°F67°F102°F 190259°F 19430%
Aug 2091°F67°F102°F 195157°F 19270%
Aug 2191°F67°F101°F 195156°F 19270%
Aug 2291°F67°F101°F 200751°F 20040%
Aug 2391°F67°F104°F 200753°F 19560%
Aug 2491°F67°F100°F 192457°F 19660%
Aug 2590°F67°F101°F 194346°F 18910%
Aug 2690°F67°F104°F 194353°F 18910%
Aug 2790°F66°F107°F 194353°F 19170%
Aug 2890°F66°F104°F 194354°F 19680%
Aug 2990°F66°F104°F 195148°F 18910%
Aug 3090°F66°F106°F 195148°F 18910%
Aug 3190°F66°F105°F 195148°F 18910%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Hillsboro, in percent, and of at least 0.1 inch of snowfall.00.21102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

August 1
sunrise 6:13 AM, sunset 7:56 PM
August 31
sunrise 6:32 AM, sunset 7:24 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00223107 (Forest), public domain. Records: NOAA GHCN-Daily, station USC00225247, 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.