NWS, American, European side by side around Riverside and nearby towns.Live rain radar →
Loading the three model maps…
Next 14 hours
consensus of the three models
7-day forecast
where the models agree, and where they split
Riverside, CA is at its warmest in Jul (average highs near 97°F) and coldest in Jan (lows around 42°F), with roughly 22 in of precipitation across the year. Below, compare what NWS, American, European forecast for Riverside right now, and see exactly where they disagree.
Riverside climate by month
average daytime high and overnight low across a typical year
Jan
62°
42°
Feb
62°
43°
Mar
63°
45°
Apr
74°
48°
May
78°
53°
Jun
85°
58°
Jul
97°
65°
Aug
95°
66°
Sep
89°
62°
Oct
86°
57°
Nov
73°
48°
Dec
70°
46°
Common questions
What's the weather in Riverside today?
On this page we show what NWS, American, European each forecast for Riverside today, side by side and updated live. When all three agree the forecast is reliable; when they split, we flag it so you know the day is genuinely less certain.
Will it rain in Riverside today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Riverside and flag the days where the models disagree on whether showers actually arrive, which is exactly when a single app can catch you out.
Which forecast is most accurate for Riverside?
No single model is always right. NWS, American, European each run their own physics, so we line all three up: when they agree the Riverside forecast is reliable, and when they split you should expect surprises. See our tested US accuracy scoreboard for how the models compare.
What is the warmest month in Riverside?
Jul is typically the warmest month in Riverside, with average highs around 97°F.
How cold does Riverside get?
The coldest month in Riverside is Jan, when overnight lows average about 42°F.
How much rain does Riverside get?
Riverside sees roughly 22 in of precipitation a year, with Feb usually the wettest month.
The forecasts Americans check
The two biggest apps keep their model a secret, so we can't show their numbers, only link you to them. The National Weather Service is public, so its data sits right in the comparison above.