Fergus County climate

Fergus County Weather in August

NOAA 1991-2020 normals for Lewistown 11ESE, 28.6 km from Fergus County

Average highs run from 80°F on August 1 to 73°F on August 31, and lows from 56°F to 49°F. Normal precipitation for the month is 1.75 in.

August day by day

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

Normal daily high and low temperature at Fergus County, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
78°F
Average low
53°F
Precipitation
1.75 in
Record high
103°FAug 5, 1961
Record low
27°FAug 25, 1910
Chance of a freeze
1%
Days of 90°F or more
1.9
Daylight
14 h 54 min to 13 h 23 min
Cloud cover
48%
Humidity
45%
Dew point
46°F
Wind
9.4 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 180°F56°F101°F 202637°F 20020%
Aug 280°F56°F96°F 196636°F 19370%
Aug 380°F56°F99°F 196133°F 18960%
Aug 480°F56°F98°F 196138°F 19370%
Aug 580°F56°F103°F 196135°F 19350%
Aug 680°F56°F102°F 198337°F 19240%
Aug 780°F56°F97°F 200138°F 18960%
Aug 880°F56°F96°F 199133°F 18960%
Aug 980°F56°F100°F 194031°F 19020%
Aug 1079°F55°F100°F 200333°F 19020%
Aug 1179°F55°F101°F 201831°F 18960%
Aug 1279°F55°F101°F 194031°F 19160%
Aug 1379°F55°F97°F 197336°F 19120%
Aug 1479°F54°F101°F 192936°F 19950%
Aug 1578°F54°F99°F 199033°F 19430%
Aug 1678°F54°F98°F 197332°F 19050%
Aug 1778°F54°F98°F 190631°F 19100%
Aug 1878°F53°F97°F 196433°F 19020%
Aug 1977°F53°F97°F 200831°F 19070%
Aug 2077°F53°F97°F 193132°F 19160%
Aug 2177°F52°F97°F 196929°F 19040%
Aug 2276°F52°F98°F 197634°F 19280%
Aug 2376°F52°F101°F 196933°F 19920%
Aug 2476°F51°F101°F 196931°F 19340%
Aug 2575°F51°F99°F 200827°F 19100%
Aug 2675°F51°F99°F 192630°F 18960%
Aug 2775°F50°F97°F 197130°F 19000%
Aug 2874°F50°F100°F 192433°F 19180%
Aug 2974°F50°F94°F 200532°F 19020%
Aug 3074°F49°F96°F 192930°F 19120%
Aug 3173°F49°F99°F 201634°F 19300%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Fergus County, 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 (MDT).

August 1
sunrise 5:56 AM, sunset 8:50 PM
August 31
sunrise 6:35 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 USC00244979 (Lewistown 11ESE), public domain. Records: NOAA GHCN-Daily, station USW00024036, 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 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.