0in

Rain Today

Rain Last Hour
0in

Recorded at Ontario International Airport Updated 1 hour 9 mins ago (3.8 miles away)

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Real-Time Extremes

Hottest 87.7 °F
Kosrae Island - Kosrae Airport, HI
Coldest -50.9 °F
Arctic Village, Arctic Village Airport, AK
Windiest 36.9mph
Livingston, Mission Field Airport, MT
Wettest (Last Hour) 0.2in
Oahu, Kalaeloa Airport, HI
Most Humid 100%
Hobby Field Airport, OR
Least Humid 11%
Emigrant Gap, Blue Canyon Nyack Airport, CA
Highest Pressure 1038.9 hPa
Metlakatla, Metlakatla Seaplane Base, AK
Lowest Pressure 990.9 hPa
Binghamton, Binghamton Regional Airport, NY

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Rancho Cucamonga Rainfall Forecast

Today 15 Jan
No Rain
Fri 16 Jan
No Rain
Sat 17 Jan
No Rain
Sun 18 Jan
No Rain
Mon 19 Jan
No Rain
Tue 20 Jan
No Rain
Wed 21 Jan
5%

Rancho Cucamonga Rainfall Statistics

January Rainfall

Ontario International Airport (3.7 miles)

Total Rainfall 2026
1in
Daily Average 2026
0.1in
Wettest Day 1 January, 2026
0.9in
Wet Days 2026
4/15 (27%)
Total Rainfall December
1.6in
Daily Average December
0.1in
Wettest Day 24 December, 2025
1.2in
Wet Days December
4/31 (13%)
Total Rainfall January
1in
Daily Average January
0.1in
Wettest Day 1 January, 2026
0.9in
Wet Days January
4/15 (27%)

Climate (2010–Present)

Ontario International Airport (3.7 miles)

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Annual Average 2021–2025
13.5in
Monthly Average 2021–2025
1.1in
Daily Average 2021–2026
0.04in
Wettest Day 5 February, 2024
3.6in

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