Marathon, FL

NWS NDFD forecast low temperature for Marathon.

Every year's low on Jul 17 at Marathon. The forecast line shows where today lands; the ringed bar is the coldest on record.

The hottest and coldest ever recorded at Marathon in each calendar month, and for the whole 1950–2026 record — with the year each was set.

Records set or tied at Marathon so far this year — through Jul 11.

Normal low & low by month, from Marathon's own 1991–2020 record. Today's normal low: 80°F · forecast is +4° vs normal.

Marathon's observed daily low 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 Marathon's own record — the record low, the normal, and the full span ever seen. A shareable look at where the year stands.

Each cell is one day's low at Marathon, coloured by temperature — 77 years of record, so heat waves read as warm streaks and cold snaps as blue.

How many days a year hit a given low at Marathon — counted through Jul 17 each year, so you can see whether 2026 is running cold. Pick a threshold:

No days ≤32°F yet in 2026. Normal for this point: 0. Record: 0 in 1950.

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