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Kentucky · THREADEX · 1872–2026

Louisville, KY

38.177°N, 85.731°W · station SDFthr · 155 years of record
99°F
forecast high · Sep 3

7-Day Forecast

NWS NDFD forecast high temperature for Louisville.
97°TUE9/197°WED9/299°THU9/398°FRI9/494°SAT9/590°SUN9/690°MON9/7

This Day in History

Every year's high on each of the next 7 forecast dates at Louisville — toggle a day below. The forecast line shows where it lands; the ringed bar is the hottest on record.

Ranks

#2 / 154
warmest Sep 3 in 154 yrs of record

Warmest Sep 3 ever

102°F
set in 2011

Coolest Sep 3 ever

58°F
set in 1974
Forecast high 99°F — 2nd warmest Sep 3 of 154 years · record 102°F (2011) · warmest since 2011.
1872: 83°F1873: 89°F1874: 88°F1875: 90°F1876: 75°F1877: 74°F1878: 85°F1879: 72°F1880: 82°F1881: 94°F1882: 79°F1883: 78°F1884: 86°F1885: 82°F1886: 87°F1887: 90°F1888: 76°F1889: 80°F1890: 86°F1891: 79°F1892: 80°F1893: 82°F1894: 92°F1895: 89°F1896: 93°F1897: 85°F1898: 96°F1899: 96°F1900: 87°F1901: 82°F1902: 86°F1903: 90°F1904: 93°F1905: 79°F1906: 83°F1907: 77°F1908: 82°F1909: 80°F1910: 87°F1911: 90°F1912: 93°F1913: 97°F1914: 78°F1915: 82°F1916: 81°F1917: 88°F1918: 82°F1919: 84°F1920: 72°F1921: 91°F1922: 88°F1923: 81°F1924: 72°F1925: 99°F1926: 88°F1927: 88°F1928: 82°F1929: 88°F1930: 80°F1931: 80°F1932: 92°F1933: 82°F1934: 84°F1935: 72°F1936: 78°F1937: 89°F1938: 82°F1939: 91°F1940: 78°F1941: 88°F1942: 87°F1943: 86°F1944: 84°F1945: 83°F1946: 81°F1947: 92°F1948: 93°F1949: 86°F1950: 86°F1951: 81°F1952: 71°F1953: 99°F1954: 95°F1955: 85°F1956: 79°F1957: 89°F1958: 93°F1959: 88°F1960: 92°F1961: 86°F1962: 78°F1963: 86°F1964: 85°F1965: 85°F1966: 87°F1967: 78°F1968: 83°F1969: 87°F1970: 85°F1971: 82°F1972: 88°F1973: 92°F1974: 58°F1975: 94°F1976: 76°F1977: 87°F1978: 85°F1979: 87°F1980: 89°F1981: 85°F1982: 76°F1983: 90°F1984: 92°F1985: 89°F1986: 83°F1987: 88°F1988: 84°F1989: 80°F1990: 90°F1991: 84°F1992: 79°F1993: 79°F1994: 77°F1995: 87°F1996: 85°F1997: 74°F1998: 87°F1999: 96°F2000: 89°F2001: 80°F2002: 94°F2003: 80°F2004: 81°F2005: 83°F2006: 78°F2007: 97°F2008: 94°F2009: 82°F2010: 85°F2011: 102°F2012: 80°F2013: 82°F2014: 90°F2015: 94°F2016: 83°F2017: 83°F2018: 93°F2019: 91°F2020: 86°F2021: 84°F2022: 88°F2023: 92°F2024: 84°F2025: 87°F99° forecast556065707580859095100105188018901900191019201930194019501960197019801990200020102020
📖 Louisville's full Climate Almanac →

The Numbers

Forecast high · Sep 399°F
Hottest this date since2011
This-date record102°F
This-date rank#2 of 154
Hottest at any time since2024
All-time record107°F (1901)
Odds to tie/break0.0% (daily)
Period of record1872–2026

Record Book

The hottest and coldest ever recorded at Louisville in each calendar month, and for the whole 1872–2026 record — with the year each was set.
MonthRecord HighRecord Low
Jan77°FJan 24, 1943-22°FJan 19, 1994
Feb82°FFeb 20, 2018-19°FFeb 2, 1951
Mar89°FMar 22, 2026-1°FMar 6, 1960
Apr91°FApr 30, 189421°FApr 17, 1875
May98°FMay 28, 191131°FMay 1, 1963
Jun105°FJun 29, 201242°FJun 1, 1966
Jul107°FJul 24, 190149°FJul 23, 1947
Aug105°FAug 12, 188145°FAug 31, 1946
Sep104°FSep 5, 195433°FSep 30, 1949
Oct97°FOct 1, 201923°FOct 29, 1925
Nov85°FNov 1, 2016-1°FNov 25, 1950
Dec76°FDec 3, 1982-15°FDec 22, 1989
All-time107°FJul 24, 1901-22°FJan 19, 1994

2026 Records So Far

Records set or tied at Louisville so far this year — through Aug 30.

Record Highs in 2026

6 broke
plus 0 tied — daily record highs set this year
Monthly high record this year: Mar (89°F)

Record Lows in 2026

0 broke
plus 0 tied — daily record lows set this year

Record Warm Nights & Cold Days

Two more daily records, kept separate from the rankings: the warmest a night has ever stayed (record high minimum) and the coldest a day has ever gotten (record low maximum) — the flip side of the usual record high and low.

Warmest low ever

84°F
record high minimum — the night it never cooled · Aug 19, 1936

Coldest high ever

-2°F
record low maximum — the day it never warmed · Jan 12, 1918
MonthWarmest lowColdest high
Jan66°FJan 25, 1950-2°FJan 12, 1918
Feb66°FFeb 20, 20182°FFeb 9, 1899
Mar70°FMar 27, 190717°FMar 1, 1980
Apr71°FApr 6, 187332°FApr 1, 1881
May76°FMay 30, 199142°FMay 2, 1897
Jun83°FJun 14, 202257°FJun 15, 1917
Jul83°FJul 25, 190167°FJul 24, 1895
Aug84°FAug 19, 193661°FAug 30, 1915
Sep80°FSep 6, 188152°FSep 30, 1876
Oct76°FOct 5, 194134°FOct 30, 1917
Nov68°FNov 12, 187914°FNov 24, 1950
Dec64°FDec 15, 19483°FDec 22, 1989
All-time84°FAug 19, 1936-2°FJan 12, 1918

Hot Streaks

Current run

1 days
consecutive days with a high ≥ 90°F

Longest ever

22 days
record run, ended Aug 20 2007

So far in 2026

28 days
days with a high ≥ 90°F this year

Climate Normals

Normal high & low by month, from Louisville's own 1991–2020 record. Today's normal high: 86°F · forecast is +13° vs normal.
Jan: 43°FJan: 27°FFeb: 48°FFeb: 30°FMar: 57°FMar: 38°FApr: 69°FApr: 47°FMay: 77°FMay: 58°FJun: 85°FJun: 66°FJul: 88°FJul: 70°FAug: 88°FAug: 68°FSep: 81°FSep: 61°FOct: 70°FOct: 49°FNov: 57°FNov: 38°FDec: 46°FDec: 31°FJFMAMJJASOND

Sun & Location

Sun & Daylight Today

Sunrise5:12 AM
Sunset6:13 PM
Solar noon11:43 AM
Daylight13h 01m · losing 16 min/wk
Local standard time (no DST), level horizon.

Location

38.18°N, 85.73°W

Nearby Stations

Lexington, KY61 mi ECincinnati, OH82 mi NEEvansville, IN97 mi WIndianapolis, IN110 mi NWilmington, OH136 mi NEJackson, KY137 mi E

The Last 6 Weeks

Louisville's observed daily high for the last six weeks — a white ring marks any day that broke or tied its daily record for that date.
Louisville, KY — last six weeks of daily high

2026 So Far

Every day this year against Louisville's own record — the record high, the normal, and the full span ever seen. A shareable look at where the year stands.
Louisville, KY — 2026 daily high trace
Download year chart

Every Day Since 1872

Each cell is one day's high at Louisville, coloured by temperature — 155 years of record, so heat waves read as warm streaks and cold snaps as blue.
Louisville, KY daily high heat map 1872–2026

Days Above the Mark

How many days a year hit a given high at Louisville — counted through Sep 3 each year, so you can see whether 2026 is running hot. Pick a threshold:
28 days ≥90°F so far in 2026 — tied for the 98th most in 155 years. Normal for this point: 33. Record: 70 in 2010.

Share Card

A ready-to-share summary of Louisville's outlook — post it, or link this page.
Louisville, KY hot share card
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