Mount Morris climate

Mount Morris Weather in August

NOAA 1991-2020 normals for Polo 5NW, 14.7 km from Mount Morris

Average highs run from 84°F on August 1 to 81°F on August 31, and lows from 61°F to 56°F. Normal precipitation for the month is 3.71 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 Mount Morris, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
83°F
Average low
59°F
Precipitation
3.71 in
Record high
101°FAug 17, 1988
Record low
40°FAug 28, 1986
Chance of a freeze
0%
Days of 90°F or more
3.3
Daylight
14 h 25 min to 13 h 11 min
Cloud cover
52%
Humidity
75%
Dew point
62°F
Wind
7.6 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 184°F61°F97°F 198851°F 198532%0%
Aug 284°F61°F100°F 198848°F 198532%0%
Aug 384°F61°F97°F 198848°F 197632%0%
Aug 484°F61°F98°F 198847°F 197832%0%
Aug 584°F61°F98°F 198847°F 199432%0%
Aug 684°F61°F92°F 202448°F 199432%0%
Aug 784°F61°F95°F 200148°F 197632%0%
Aug 884°F60°F95°F 198446°F 197632%0%
Aug 983°F60°F97°F 198349°F 197632%0%
Aug 1083°F60°F92°F 199252°F 198232%0%
Aug 1183°F60°F94°F 198348°F 198232%0%
Aug 1283°F60°F94°F 198847°F 197732%0%
Aug 1383°F60°F94°F 198848°F 200432%0%
Aug 1483°F60°F92°F 199547°F 200431%0%
Aug 1583°F60°F96°F 198845°F 197931%0%
Aug 1683°F60°F98°F 198844°F 197631%0%
Aug 1783°F59°F101°F 198844°F 197631%0%
Aug 1883°F59°F101°F 198847°F 198131%0%
Aug 1983°F59°F94°F 198348°F 198131%0%
Aug 2083°F59°F100°F 198347°F 198531%0%
Aug 2183°F59°F95°F 198345°F 198531%0%
Aug 2282°F59°F93°F 197547°F 198530%0%
Aug 2382°F58°F92°F 197650°F 198430%0%
Aug 2482°F58°F97°F 202344°F 198430%0%
Aug 2582°F58°F97°F 202346°F 197730%0%
Aug 2682°F58°F95°F 200349°F 197730%0%
Aug 2782°F58°F93°F 197349°F 202530%0%
Aug 2882°F57°F97°F 202440°F 198630%0%
Aug 2982°F57°F97°F 198442°F 198630%0%
Aug 3081°F57°F99°F 198442°F 198629%0%
Aug 3181°F56°F97°F 201344°F 200929%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Mount Morris, 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 5:51 AM, sunset 8:16 PM
August 31
sunrise 6:22 AM, sunset 7:33 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00116897 (Polo 5NW), public domain. Records: NOAA GHCN-Daily, station USC00113262, 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.