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As of 19:13 EDT

Weather in Marathon, FL

88°Current weather

Marathon, Saturday, 8 August, 19:13

Clear. Feels like 100°. High 88°, low 82°.

Pressure30.03 inHg
Wind7 mph E
Humidity74%
Visibility6.2 mi
Dew point78°
Sun, 0986° / 85°0.04Light rain
86 °Light rain

Marathon, Sunday, 9 August

Light rain. High 86°, low 85°.

Pressure30.09 inHg
Wind15.8 mph E
Humidity73%
Visibility6.2 mi
Dew point75°
Mon, 1086° / 85°0Partly cloudy
86 °Partly cloudy

Marathon, Monday, 10 August

Partly cloudy. High 86°, low 85°.

Pressure30.12 inHg
Wind14.5 mph E
Humidity69%
Visibility6.2 mi
Dew point75°
Tue, 1186° / 85°0.01Light rain
86 °Light rain

Marathon, Tuesday, 11 August

Light rain. High 86°, low 85°.

Pressure30.09 inHg
Wind15 mph E
Humidity78%
Visibility6.2 mi
Dew point77°
Wed, 1285° / 85°0.01Light rain
85 °Light rain

Marathon, Wednesday, 12 August

Light rain. High 85°, low 85°.

Pressure30.06 inHg
Wind12 mph SE
Humidity71%
Visibility6.2 mi
Dew point74°
Thu, 1386° / 84°0Overcast
86 °Overcast

Marathon, Thursday, 13 August

Overcast. High 86°, low 84°.

Pressure30.06 inHg
Wind13.8 mph E
Humidity71%
Visibility—
Dew point75°
Fri, 1486° / 85°0Light rain
86 °Light rain

Marathon, Friday, 14 August

Light rain. High 86°, low 85°.

Pressure30.09 inHg
Wind17.3 mph E
Humidity70%
Visibility—
Dew point75°
Sat, 1586° / 85°0.28Rain
86 °Rain

Marathon, Saturday, 15 August

Rain. High 86°, low 85°.

Pressure30.15 inHg
Wind18.7 mph E
Humidity67%
Visibility—
Dew point74°
Sun, 1686° / 85°0.02Light rain
86 °Light rain

Marathon, Sunday, 16 August

Light rain. High 86°, low 85°.

Pressure30.15 inHg
Wind20 mph SE
Humidity65%
Visibility—
Dew point73°
Mon, 1785° / 84°0.02Light rain
85 °Light rain

Marathon, Monday, 17 August

Light rain. High 85°, low 84°.

Pressure30.09 inHg
Wind19 mph E
Humidity72%
Visibility—
Dew point75°
Tue, 1885° / 85°0.01Light rain
85 °Light rain

Marathon, Tuesday, 18 August

Light rain. High 85°, low 85°.

Pressure30.06 inHg
Wind18.2 mph E
Humidity71%
Visibility—
Dew point74°
Wed, 1985° / 84°0.05Light rain
85 °Light rain

Marathon, Wednesday, 19 August

Light rain. High 85°, low 84°.

Pressure30.03 inHg
Wind13 mph E
Humidity65%
Visibility—
Dew point71°
Thu, 2085° / 83°0Mostly clear
85 °Mostly clear

Marathon, Thursday, 20 August

Mostly clear. High 85°, low 83°.

Pressure30.03 inHg
Wind9.6 mph E
Humidity71%
Visibility—
Dew point74°
Fri, 2185° / 84°0.07Light rain
85 °Light rain

Marathon, Friday, 21 August

Light rain. High 85°, low 84°.

Pressure30.03 inHg
Wind9.8 mph SE
Humidity73%
Visibility—
Dew point75°
Sat, 2285° / 84°0.01Light rain
85 °Light rain

Marathon, Saturday, 22 August

Light rain. High 85°, low 84°.

Pressure30.00 inHg
Wind8.7 mph S
Humidity70%
Visibility—
Dew point74°
Sun, 2385° / 83°0Overcast
85 °Overcast

Marathon, Sunday, 23 August

Overcast. High 85°, low 83°.

Pressure30.00 inHg
Wind2.6 mph W
Humidity66%
Visibility—
Dew point71°

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Marathon, FL are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Marathon, FL since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.