Missouri Valley climate

Missouri Valley Weather in August

NOAA 1991-2020 normals for Logan, 12.3 km from Missouri Valley

Average highs run from 85°F on August 1 to 82°F on August 31, and lows from 64°F to 57°F. Normal precipitation for the month is 4.29 in over about 9 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 Missouri Valley, in °F, with the record for each date.406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
84°F
Average low
61°F
Precipitation
4.29 in
Record high
102°FAug 25, 2023
Record low
49°FAug 19, 2012
Chance of a freeze
0%
Days of 90°F or more
5.3
Daylight
14 h 23 min to 13 h 09 min
Cloud cover
50%
Humidity
67%
Dew point
61°F
Wind
8.7 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 185°F64°F101°F 200659°F 201828%0%
Aug 285°F64°F98°F 201255°F 200228%0%
Aug 385°F64°F99°F 202255°F 202028%0%
Aug 485°F64°F97°F 200252°F 201728%0%
Aug 585°F63°F94°F 200754°F 201728%0%
Aug 685°F63°F97°F 200658°F 200428%0%
Aug 785°F63°F100°F 202258°F 202428%0%
Aug 885°F63°F98°F 201258°F 201728%0%
Aug 985°F63°F95°F 200951°F 202428%0%
Aug 1085°F63°F93°F 200651°F 202428%0%
Aug 1184°F63°F91°F 202251°F 200429%0%
Aug 1284°F62°F94°F 200751°F 200429%0%
Aug 1384°F62°F94°F 202252°F 200429%0%
Aug 1484°F62°F90°F 200752°F 200428%0%
Aug 1584°F62°F89°F 200752°F 200428%0%
Aug 1684°F62°F90°F 201255°F 202328%0%
Aug 1784°F61°F86°F 202052°F 201228%0%
Aug 1884°F61°F87°F 201452°F 201228%0%
Aug 1984°F61°F97°F 200349°F 201228%0%
Aug 2083°F61°F95°F 202351°F 201228%0%
Aug 2183°F60°F93°F 200355°F 201528%0%
Aug 2283°F60°F96°F 202353°F 200928%0%
Aug 2383°F60°F99°F 202352°F 201528%0%
Aug 2483°F60°F100°F 202352°F 201528%0%
Aug 2583°F59°F102°F 202352°F 201528%0%
Aug 2682°F59°F99°F 200353°F 201528%0%
Aug 2782°F59°F95°F 202457°F 200827%0%
Aug 2882°F58°F96°F 201354°F 201927%0%
Aug 2982°F58°F95°F 201352°F 201827%0%
Aug 3082°F58°F96°F 201252°F 201827%0%
Aug 3182°F57°F98°F 201257°F 200627%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Missouri Valley, in percent, and of at least 0.1 inch of snowfall.01020301102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

August 1
sunrise 6:18 AM, sunset 8:41 PM
August 31
sunrise 6:49 AM, sunset 7:58 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00134894 (Logan), public domain. Records: NOAA GHCN-Daily, station USC00252980, 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.