Carbondale, IL

NWS NDFD forecast high temperature for Carbondale.

Every year's high on Jul 18 at Carbondale. The forecast line shows where today lands; the ringed bar is the hottest on record.

The hottest and coldest ever recorded at Carbondale in each calendar month, and for the whole 1898–2026 record — with the year each was set.

Records set or tied at Carbondale so far this year — through Jul 10.

Normal high & low by month, from Carbondale's own 1991–2020 record. Today's normal high: 89°F · forecast is +4° vs normal.

Carbondale'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 Carbondale'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 Carbondale, coloured by temperature — 129 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 Carbondale — counted through Jul 18 each year, so you can see whether 2026 is running hot. Pick a threshold:

11 days ≥90°F so far in 2026 — tied for the 99th most in 129 years. Normal for this point: 18. Record: 49 in 1911.

A ready-to-share summary of Carbondale's outlook — post it, or link this page.