0in

Rain Today

Rain Last Hour
0in

Recorded at The Florida Keys - Marathon International Airport Updated 11 mins ago (6.4 miles away)

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Real-Time Extremes

Hottest 98.5 °F
Zapata, TX, TX
Coldest 30.1 °F
Barrow, Wiley Post-Will Rogers Memorial Airport, AK
Windiest 43.6mph
Mount Washington, NH
Wettest (Last Hour) 0.5in
Daytona Beach International Airport, FL
Most Humid 100%
Saline County Regional Airport, AR
Least Humid 16%
Powell Municipal Airport, WY
Highest Pressure 1042.7 hPa
Salida - Monarch Pass, CO
Lowest Pressure 999.3 hPa
Arctic Village, Arctic Village Airport, AK

Trending Locations

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Grassy Key Rainfall Forecast

Today 26 Aug
15%
Wed 27 Aug
35%
Thu 28 Aug
35%
Fri 29 Aug
40%
Sat 30 Aug
45%
Sun 31 Aug
40%
Mon 1 Sep
45%

Grassy Key Rainfall Statistics

August Rainfall

The Florida Keys - Marathon International Airport (6.2 miles)

Total Rainfall 2025
15.7in
Daily Average 2025
0.1in
Wettest Day 3 June, 2025
4.4in
Wet Days 2025
47/238 (20%)
Total Rainfall July
2.1in
Daily Average July
0.1in
Wettest Day 22 July, 2025
0.6in
Wet Days July
13/31 (42%)
Total Rainfall August
2.6in
Daily Average August
0.1in
Wettest Day 7 August, 2025
1.8in
Wet Days August
7/26 (27%)

Climate (2010–Present)

The Florida Keys - Marathon International Airport (6.2 miles)

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Annual Average 2020–2024
45.7in
Monthly Average 2020–2025
3.5in
Daily Average 2020–2025
0.1in
Wettest Day 12 September, 2020
8.1in

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