Name: Grand River South
Address: Grand River South, Ontario, CA

Hourly forecast · Grand River South

The next 48 hours in detail — temperature, feels-like, precipitation chance, wind and UV for every hour. Built on NWS NBM and global model guidance.

48 hours — Grand River South

Today + 10-day →

Time	Conditions	Temp	Precip	Wind	UV
Thursday 3/9 10:00	Rain	72°	0.24 in	4 mph NW	3
11:00	Rain	76°	0.24 in	4 mph W	4
12:00	Rain	80°	0.24 in	8 mph W	4
13:00	Mostly cloudy	76°	–	10 mph W	6
14:00	Mostly cloudy	76°	–	8 mph W	7
15:00	Mostly cloudy	77°	–	6 mph W	5
16:00	Mostly cloudy	77°	–	7 mph W	3
17:00	Mostly cloudy	76°	–	9 mph W	2
18:00	Partly cloudy	75°	–	8 mph W	0
19:00	Partly cloudy	74°	–	8 mph W	0
20:00	Mostly cloudy	72°	–	6 mph NW	0
21:00	Mostly cloudy	71°	–	6 mph NW	0
22:00	Mostly cloudy	69°	–	6 mph N	0
23:00	Partly cloudy	68°	–	6 mph N	0
Friday 4/9 00:00	Mostly cloudy	66°	–	6 mph NW	0
01:00	Mostly cloudy	66°	–	5 mph N	0
02:00	Mostly cloudy	65°	–	5 mph N	0
03:00	Mostly cloudy	64°	–	5 mph N	0
04:00	Partly cloudy	62°	–	5 mph N	0
05:00	Mostly cloudy	62°	–	6 mph N	0
06:00	Mostly cloudy	62°	–	5 mph N	0
07:00	Mostly cloudy	62°	–	5 mph N	0
08:00	Sunny	64°	–	5 mph N	0
09:00	Sunny	64°	–	6 mph N	0
10:00	Sunny	67°	–	6 mph N	2
11:00	Sunny	70°	–	7 mph N	4
12:00	Sunny	72°	–	7 mph NW	6
13:00	Sunny	73°	–	8 mph NW	7
14:00	Sunny	74°	–	9 mph NW	7
15:00	Sunny	74°	–	11 mph NW	6
16:00	Sunny	74°	–	11 mph NW	4
17:00	Sunny	73°	–	10 mph NW	2
18:00	Sunny	71°	–	9 mph N	1
19:00	Sunny	71°	–	7 mph N	0
20:00	Sunny	66°	–	8 mph N	0
21:00	Sunny	63°	–	8 mph N	0
22:00	Sunny	61°	–	7 mph N	0
23:00	Sunny	60°	–	7 mph N	0
Saturday 5/9 00:00	Sunny	60°	–	8 mph N	0
01:00	Sunny	60°	–	8 mph N	0
02:00	Sunny	60°	–	8 mph N	0
03:00	Sunny	59°	–	7 mph N	0
04:00	Sunny	58°	–	6 mph N	0
05:00	Sunny	58°	–	6 mph N	0
06:00	Sunny	58°	–	5 mph N	0
07:00	Sunny	57°	–	6 mph N	0
08:00	Sunny	60°	–	5 mph N	0
09:00	Sunny	61°	–	5 mph N	1

Hourly

How the hourly forecast is made

Hour-by-hour numbers come from NOAA's National Blend of Models combined with ECMWF and GFS guidance, bias-corrected against nearby station observations and refreshed every hour.

Grand River South, ON Hourly Weather

Hourly forecast · Grand River South

48 hours — Grand River South