St. Clair County climate

St. Clair County Weather in October

NOAA 1991-2020 normals for Osceola, 6.5 km from St. Clair County

Average highs run from 76°F on October 1 to 64°F on October 31, and lows from 52°F to 40°F. Normal precipitation for the month is 3.49 in over about 7 wet days.

October day by day

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

Normal daily high and low temperature at St. Clair County, in °F, with the record for each date.020406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

October at a glance

Average high
70°F
Average low
46°F
Precipitation
3.49 in
Record high
97°FOct 6, 1912
Record low
15°FOct 22, 1952
Chance of a freeze
82%
Daylight
11 h 47 min to 10 h 37 min
Cloud cover
50%
Humidity
72%
Dew point
47°F
Wind
8.3 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
Oct 176°F52°F92°F 195230°F 195823%0%
Oct 275°F51°F93°F 190930°F 195823%0%
Oct 375°F51°F95°F 196329°F 198723%0%
Oct 474°F50°F93°F 190928°F 198723%0%
Oct 574°F50°F94°F 193732°F 193523%0%
Oct 674°F50°F97°F 191225°F 195223%0%
Oct 773°F49°F97°F 193921°F 195223%0%
Oct 873°F49°F97°F 196321°F 195223%0%
Oct 973°F48°F93°F 192824°F 200023%0%
Oct 1072°F48°F91°F 192824°F 200023%0%
Oct 1172°F48°F96°F 196326°F 200023%0%
Oct 1272°F47°F95°F 192425°F 190923%0%
Oct 1371°F47°F91°F 195626°F 191723%
Oct 1471°F46°F91°F 193826°F 200623%
Oct 1570°F46°F94°F 196327°F 195223%
Oct 1670°F46°F90°F 192925°F 195223%
Oct 1770°F45°F90°F 192426°F 197623%
Oct 1869°F45°F91°F 192921°F 195223%
Oct 1969°F45°F85°F 195019°F 202223%
Oct 2068°F44°F89°F 196320°F 202223%
Oct 2168°F44°F88°F 194018°F 195223%
Oct 2268°F43°F88°F 197815°F 195223%
Oct 2367°F43°F92°F 193919°F 193723%
Oct 2467°F43°F87°F 192722°F 193823%
Oct 2566°F42°F88°F 193923°F 201323%
Oct 2666°F42°F88°F 192723°F 194223%
Oct 2765°F42°F88°F 195024°F 200123%
Oct 2865°F41°F86°F 197720°F 191323%
Oct 2965°F41°F88°F 193715°F 195223%
Oct 3064°F40°F88°F 195019°F 191723%
Oct 3164°F40°F90°F 195020°F 199323%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at St. Clair County, in percent, and of at least 0.1 inch of snowfall.05101520251102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

October 1
sunrise 7:11 AM, sunset 6:58 PM
October 31
sunrise 7:40 AM, sunset 6:17 PM

Every day of October: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00236402 (Osceola), public domain. Records: NOAA GHCN-Daily, station USC00231711, 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.