Rancho Cucamonga, CA 91737 Hourly Weather

San Bernardino County3:45 AM PDT34.15°N, 117.58°W
Flood Advisory until 6:45 AM Thu

Next 48 hours

3 AM 6 AM 9 AM 12 PM 3 PM 6 PM 9 PM Fri Oct 23 12 AM 3 AM 6 AM 9 AM 12 PM 3 PM 6 PM 9 PM Sat Oct 24 12 AM 55° 60° 65° %
TemperatureFeels likeChance of precipitationNight
Thursday, October 2221 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
3 AM Showers And Thunderstorms 59° 59° 100% 0.07 in W 5 G12 100% 59° 100% 0
4 AM Showers And Thunderstorms 58° 58° 100% 0.07 in S 5 100% 58° 100% 0
5 AM Rain Showers Likely 58° 58° 57% 0.01 in W 5 100% 58° 74% 0
6 AM Rain Showers Likely 58° 58° 57% 0.01 in NW 5 G10 100% 58° 74% 0
7 AM Rain Showers Likely 57° 57° 57% 0.01 in W 5 100% 57° 74% 0
8 AM Rain Showers Likely 58° 58° 57% 0.01 in W 5 G10 100% 58° 74% 0
9 AM Rain Showers Likely 58° 58° 57% 0.01 in SW 5 G12 100% 58° 74% 1
10 AM Rain Showers Likely 58° 58° 57% 0.01 in SW 5 G13 100% 58° 74% 3
11 AM Showers And Thunderstorms 58° 59° 75% 0.03 in SW 5 G10 100% 58° 100% 4
12 PM Showers And Thunderstorms 58° 59° 75% 0.03 in SW 5 G12 100% 58° 100% 5
1 PM Showers And Thunderstorms 59° 59° 75% 0.03 in Calm 99% 59° 100% 5
2 PM Showers And Thunderstorms 61° 61° 75% 0.03 in W 5 G14 93% 59° 97% 4
3 PM Showers And Thunderstorms 60° 60° 75% 0.03 in W 10 G18 92% 58° 97% 3
4 PM Showers And Thunderstorms 61° 61° 75% 0.03 in W 15 G21 87% 57° 97% 1
5 PM Chance Rain Showers 60° 60° 31% <0.01 in W 10 G16 90% 57° 73% 0
6 PM Chance Rain Showers 59° 59° 31% <0.01 in W 10 G17 95% 58° 73% 0
7 PM Chance Rain Showers 58° 58° 31% <0.01 in W 10 G16 96% 57° 73% 0
8 PM Chance Rain Showers 57° 57° 31% <0.01 in W 5 G14 96% 56° 73% 0
9 PM Chance Rain Showers 56° 56° 31% <0.01 in W 5 G12 99% 56° 73% 0
10 PM Chance Rain Showers 56° 56° 31% <0.01 in Calm 99% 55° 73% 0
11 PM Slight Chance Rain Showers 56° 56° 22% <0.01 in E 5 98% 55° 53% 0
Friday, October 2324 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Slight Chance Rain Showers 56° 56° 22% <0.01 in NE 5 99% 55° 53% 0
1 AM Slight Chance Rain Showers 55° 55° 22% <0.01 in Calm 99% 55° 53% 0
2 AM Slight Chance Rain Showers 55° 55° 22% <0.01 in E 5 G10 98% 55° 64% 0
3 AM Slight Chance Rain Showers 55° 55° 22% <0.01 in NE 5 G12 98% 54° 64% 0
4 AM Slight Chance Rain Showers 55° 55° 22% <0.01 in NE 5 G12 98% 54° 64% 0
5 AM Mostly Cloudy 55° 55° 10% 0.00 in NE 5 G12 97% 54° 62% 0
6 AM Partly Sunny 54° 54° 10% 0.00 in NE 10 96% 53° 62% 0
7 AM Partly Sunny 55° 55° 10% 0.00 in NE 5 G14 98% 54° 62% 0
8 AM Partly Sunny 56° 56° 10% 0.00 in NE 5 G14 98% 55° 51% 0
9 AM Partly Sunny 57° 57° 10% 0.00 in NE 5 99% 57° 51% 1
10 AM Partly Sunny 59° 59° 10% 0.00 in Calm 100% 58° 51% 3
11 AM Mostly Sunny 60° 60° 13% 0.00 in Calm 96% 59° 47% 4
12 PM Mostly Sunny 61° 61° 13% 0.00 in Calm 92% 59° 47% 5
1 PM Mostly Sunny 62° 63° 13% 0.00 in S 5 91% 60° 47% 5
2 PM Mostly Sunny 63° 63° 13% 0.00 in SW 5 89% 60° 36% 4
3 PM Mostly Sunny 64° 64° 13% 0.00 in SW 5 83% 59° 36% 3
4 PM Mostly Sunny 65° 65° 13% 0.00 in SW 5 81% 59° 36% 1
5 PM Sunny 64° 65° 4% 0.00 in Calm 83% 59° 17% 0
6 PM Mostly Clear 63° 63° 4% 0.00 in Calm 85% 59° 17% 0
7 PM Mostly Clear 62° 62° 4% 0.00 in Calm 87% 58° 17% 0
8 PM Mostly Clear 59° 59° 4% 0.00 in Calm 88% 56° 17% 0
9 PM Mostly Clear 58° 58° 4% 0.00 in NE 5 88% 55° 17% 0
10 PM Mostly Clear 57° 57° 4% 0.00 in NE 5 G13 89% 54° 17% 0
11 PM Mostly Clear 57° 57° 0% 0.00 in NE 10 89% 54° 6% 0
Saturday, October 2424 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Mostly Clear 56° 56° 0% 0.00 in NE 10 90% 53° 6% 0
1 AM Mostly Clear 55° 55° 0% 0.00 in N 5 G12 92% 53° 6% 0
2 AM Mostly Clear 55° 55° 0% 0.00 in N 5 92% 53° 6% 0
3 AM Mostly Clear 55° 55° 0% 0.00 in N 5 91% 52° 6% 0
4 AM Mostly Clear 55° 55° 0% 0.00 in N 5 89% 52° 6% 0
5 AM Mostly Clear 55° 55° 0% 0.00 in N 5 87% 51° 8% 0
6 AM Sunny 56° 56° 0% 0.00 in N 5 G10 86% 52° 8% 0
7 AM Sunny 56° 56° 0% 0.00 in N 5 G12 85% 52° 8% 0
8 AM Sunny 58° 58° 0% 0.00 in N 5 G12 81% 52° 8% 0
9 AM Sunny 61° 61° 0% 0.00 in N 5 G10 73% 52° 8% 1
10 AM Sunny 64° 64° 0% 0.00 in N 5 64% 52° 8% 3
11 AM Sunny 67° 67° 0% 0.00 in N 5 57% 52° 2% 5
12 PM Sunny 70° 70° 0% 0.00 in Calm 53% 52° 2% 6
1 PM Sunny 71° 71° 0% 0.00 in N 5 50% 52° 2% 6
2 PM Sunny 73° 73° 0% 0.00 in NW 5 48% 52° 2% 5
3 PM Sunny 74° 74° 0% 0.00 in Calm 47% 52° 2% 3
4 PM Sunny 73° 73° 0% 0.00 in Calm 49% 53° 2% 1
5 PM Sunny 73° 73° 0% 0.00 in Calm 48% 53° 0% 0
6 PM Clear 71° 71° 0% 0.00 in Calm 50% 52° 0% –
7 PM Clear 69° 69° 0% 0.00 in Calm 54% 51° 0% –
8 PM Clear 66° 66° 0% 0.00 in Calm 57% 50° 0% –
9 PM Clear 64° 64° 0% 0.00 in Calm 60% 50° 0% –
10 PM Clear 62° 62° 0% 0.00 in Calm 62% 49° 0% –
11 PM Clear 60° 60° 0% 0.00 in N 5 64% 48° 2% –
Sunday, October 2524 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Clear 59° 59° 0% 0.00 in N 5 65% 48° 2% –
1 AM Clear 58° 59° 0% 0.00 in N 5 66% 47° 2% –
2 AM Clear 58° 58° 0% 0.00 in N 5 66% 47° 2% –
3 AM Clear 58° 58° 0% 0.00 in N 5 66% 46° 2% –
4 AM Clear 58° 58° 0% 0.00 in N 5 65% 46° 2% –
5 AM Mostly Clear 58° 58° 0% 0.00 in N 5 64% 46° 8% –
6 AM Sunny 58° 58° 0% 0.00 in N 5 64% 46° 8% –
7 AM Sunny 59° 59° 0% 0.00 in N 5 64% 47° 8% –
8 AM Sunny 61° 61° 0% 0.00 in N 5 62% 47° 8% –
9 AM Sunny 64° 64° 0% 0.00 in N 5 56% 48° 8% –
10 AM Sunny 68° 68° 0% 0.00 in N 5 50% 49° 8% –
11 AM Sunny 72° 72° 0% 0.00 in Calm 45% 50° 9% –
12 PM Sunny 74° 74° 0% 0.00 in Calm 43% 50° 9% –
1 PM Sunny 76° 76° 0% 0.00 in Calm 41% 50° 9% –
2 PM Sunny 77° 77° 0% 0.00 in Calm 40% 51° 9% –
3 PM Sunny 77° 77° 0% 0.00 in Calm 40% 51° 9% –
4 PM Sunny 76° 76° 0% 0.00 in Calm 41% 51° 9% –
5 PM Sunny 74° 74° 0% 0.00 in Calm 44% 50° 11% –
6 PM Mostly Clear 70° 71° 0% 0.00 in Calm 48% 50° 11% –
7 PM Mostly Clear 68° 68° 0% 0.00 in Calm 52% 49° 11% –
8 PM Mostly Clear 65° 65° 0% 0.00 in Calm 56% 49° 11% –
9 PM Mostly Clear 64° 64° 0% 0.00 in Calm 57% 48° 11% –
10 PM Mostly Clear 63° 63° 0% 0.00 in Calm 58% 48° 11% –
11 PM Mostly Clear 62° 62° 0% 0.00 in N 5 G14 59% 47° 17% –
Monday, October 2624 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Mostly Clear 61° 61° 0% 0.00 in N 5 G14 60% 47° 17% –
1 AM Mostly Clear 60° 60° 0% 0.00 in N 5 G14 61% 47° 17% –
2 AM Mostly Clear 60° 60° 0% 0.00 in N 5 G10 61% 46° 17% –
3 AM Mostly Clear 59° 59° 0% 0.00 in N 5 G10 61% 46° 17% –
4 AM Mostly Clear 59° 59° 0% 0.00 in N 5 G10 59% 45° 17% –
5 AM Mostly Clear 59° 59° 0% 0.00 in N 5 58% 45° 16% –
6 AM Sunny 59° 59° 0% 0.00 in N 5 59% 45° 16% –
7 AM Sunny 60° 60° 0% 0.00 in N 5 60% 46° 16% –
8 AM Sunny 61° 61° 0% 0.00 in N 5 G12 58% 46° 16% –
9 AM Sunny 64° 64° 0% 0.00 in N 5 G12 53% 47° 16% –
10 AM Sunny 68° 68° 0% 0.00 in N 5 G12 46% 47° 16% –
11 AM Sunny 72° 72° 0% 0.00 in Calm 41% 47° 4% –
12 PM Sunny 74° 74° 0% 0.00 in Calm 38% 47° 4% –
1 PM Sunny 76° 76° 0% 0.00 in Calm 37% 47° 4% –
2 PM Sunny 76° 76° 0% 0.00 in Calm 36% 47° 4% –
3 PM Sunny 77° 77° 0% 0.00 in Calm 36% 48° 4% –
4 PM Sunny 76° 76° 0% 0.00 in Calm 37% 48° 4% –
5 PM Sunny 75° 75° 0% 0.00 in Calm 38% 48° 7% –
6 PM Mostly Clear 72° 72° 0% 0.00 in Calm 42% 48° 7% –
7 PM Mostly Clear 68° 69° 0% 0.00 in Calm 47% 48° 7% –
8 PM Mostly Clear 65° 65° 0% 0.00 in Calm 52% 47° 7% –
9 PM Mostly Clear 64° 64° 0% 0.00 in Calm 54% 47° 7% –
10 PM Mostly Clear 63° 63° 0% 0.00 in Calm 55% 46° 7% –
11 PM Mostly Clear 62° 62° 0% 0.00 in N 5 G14 56% 46° 13% –
Tuesday, October 2724 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Mostly Clear 61° 61° 0% 0.00 in N 5 G14 57% 46° 13% –
1 AM Mostly Clear 60° 60° 0% 0.00 in N 5 G14 58% 45° 13% –
2 AM Mostly Clear 59° 59° 0% 0.00 in Calm 59% 45° 13% –
3 AM Mostly Clear 59° 59° 0% 0.00 in Calm 59% 44° 13% –
4 AM Mostly Clear 59° 59° 0% 0.00 in Calm 58% 44° 13% –
5 AM Mostly Clear 59° 59° 0% 0.00 in Calm 57% 44° 18% –
6 AM Sunny 59° 59° 0% 0.00 in Calm 58% 44° 18% –
7 AM Sunny 60° 60° 0% 0.00 in Calm 57% 45° 18% –
8 AM Sunny 62° 62° 0% 0.00 in Calm 56% 46° 18% –
9 AM Sunny 64° 65° 0% 0.00 in Calm 51% 46° 18% –
10 AM Sunny 68° 68° 0% 0.00 in Calm 46% 46° 18% –
11 AM Sunny 71° 71° 0% 0.00 in Calm 42% 47° 18% –
12 PM Sunny 73° 73° 0% 0.00 in Calm 39% 47° 18% –
1 PM Sunny 74° 75° 0% 0.00 in Calm 38% 47° 18% –
2 PM Sunny 75° 75° 0% 0.00 in Calm 38% 48° 18% –
3 PM Sunny 76° 76° 0% 0.00 in Calm 37% 48° 18% –
4 PM Sunny 76° 76° 0% 0.00 in Calm 38% 49° 18% –
5 PM Sunny 74° 75° 0% 0.00 in Calm 40% 49° 23% –
6 PM Mostly Clear 72° 72° 0% 0.00 in Calm 44% 49° 23% –
7 PM Mostly Clear 68° 69° 0% 0.00 in Calm 49% 49° 23% –
8 PM Mostly Clear 66° 66° 0% 0.00 in Calm 54% 48° 23% –
9 PM Mostly Clear 64° 64° 0% 0.00 in Calm 56% 48° 23% –
10 PM Mostly Clear 63° 63° 0% 0.00 in Calm 57% 47° 23% –
11 PM Mostly Clear 62° 62° 0% 0.00 in Calm 57% 47° 24% –
Wednesday, October 2815 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Mostly Clear 61° 61° 0% 0.00 in Calm 58% 46° 24% –
1 AM Mostly Clear 60° 60° 0% 0.00 in Calm 59% 46° 24% –
2 AM Mostly Clear 60° 60° 0% 0.00 in Calm 59% 46° 24% –
3 AM Mostly Clear 60° 60° 0% 0.00 in Calm 58% 45° 24% –
4 AM Mostly Clear 60° 60° 0% 0.00 in Calm 57% 45° 24% –
5 AM Partly Cloudy 60° 60° 0% 0.00 in Calm 56% 45° 42% –
6 AM Mostly Sunny 61° 61° 0% 0.00 in Calm 57% 45° 42% –
7 AM Mostly Sunny 61° 61° 0% 0.00 in Calm 57% 46° 42% –
8 AM Mostly Sunny 63° 63° 0% 0.00 in Calm 56% 46° 42% –
9 AM Mostly Sunny 65° 65° 0% 0.00 in Calm 51% 47° 42% –
10 AM Mostly Sunny 69° 69° 0% 0.00 in Calm 46% 47° 42% –
11 AM Mostly Sunny 72° 72° 0% 0.00 in Calm 42% 48° 37% –
12 PM Mostly Sunny 74° 74° 0% 0.00 in Calm 40% 48° 37% –
1 PM Mostly Sunny 75° 75° 0% 0.00 in Calm 39% 48° 37% –
2 PM Mostly Sunny 76° 76° 0% 0.00 in Calm 38% 49° 37% –

National Weather Service forecast updated 2 hrs ago. Precipitation amounts are the forecast liquid equivalent for each hour.

Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Conservative index and reflects what the press published. Terms of use.