Illinois · THREADEX · 1901–2026
Quincy, IL
39.937°N, 91.197°W · station UINthr · 126 years of record
92°F
HOTTEST JUL 18 SINCE 2019
forecast high · Jul 18
NWS NDFD forecast high temperature for Quincy.
This Day in History · Jul 18
Today ranks
#39 / 125
warmest Jul 18 in 125 yrs of record
Hottest Jul 18 ever
108°F
set in 1934
Coolest Jul 18 ever
70°F
set in 2009
Hottest Jul 18 — Year by Year
Every year's high on Jul 18 at Quincy. The forecast line shows where today lands; the ringed bar is the hottest on record.
| Forecast high · Jul 18 | 92°F |
| Hottest this date since | 2019 |
| This-date record | 108°F |
| This-date rank | #39 of 125 |
| Hottest at any time since | 2026 |
| All-time record | 114°F (1936) |
| Odds to tie/break | 0.0% (daily) |
| Period of record | 1901–2026 |
The hottest and coldest ever recorded at Quincy in each calendar month, and for the whole 1901–2026 record — with the year each was set.
| Month | Record High | Record Low |
|---|
| Jan | 73°F1950 | -21°F1982 |
| Feb | 80°F2024 | -29°F1905 |
| Mar | 89°F2026 | -13°F1960 |
| Apr | 92°F1930 | 9°F2018 |
| May | 103°F1934 | 26°F1907 |
| Jun | 105°F1936 | 39°F1903 |
| Jul | 114°F1936 | 47°F1950 |
| Aug | 111°F1934 | 42°F1950 |
| Sep | 105°F1913 | 26°F1942 |
| Oct | 96°F1939 | 10°F1925 |
| Nov | 84°F1915 | -11°F1964 |
| Dec | 75°F2021 | -22°F1989 |
| All-time | 114°F1936 | -29°F1905 |
Records set or tied at Quincy so far this year — through Jul 11.
Record Highs in 2026
6 broke
plus 1 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
Current run
0 days
consecutive days with a high ≥ 90°F
Longest ever
40 days
record run, ended Jul 29 1934
So far in 2026
6 days
days with a high ≥ 90°F this year
Normal high & low by month, from Quincy's own 1991–2020 record. Today's normal high: 87°F · forecast is +5° vs normal.
Sun & Daylight Today
| Sunrise | 4:47 AM |
| Sunset | 7:34 PM |
| Solar noon | 12:10 PM |
| Daylight | 14h 47m · losing 7 min/wk |
Local standard time (no DST), level horizon.
Location
Quincy'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.
Every day this year against Quincy's own record — the record high, the normal, and the full span ever seen. A shareable look at where the year stands.
Each cell is one day's high at Quincy, coloured by temperature — 126 years of record, so heat waves read as warm streaks and cold snaps as blue.
How many days a year hit a given high at Quincy — counted through Jul 18 each year, so you can see whether 2026 is running hot. Pick a threshold:
6 days ≥90°F so far in 2026 — tied for the 97th most in 126 years. Normal for this point: 13. Record: 43 in 1934.
A ready-to-share summary of Quincy's outlook — post it, or link this page.
See Quincy on coldestsince.com →