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Forecast confidence: High · models disagree by 2°F

Riverside weather

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Mostly clear,much the same tomorrow

NWS, the American and the European model agree on a high near 84° in Riverside today. Tomorrow looks mostly clear around 87°, with a 0% chance of rain.

84°62°
87°60°
86°63°
82°65°
85°64°
93°67°
Todaymodels agreeTomorrowmodels agreeSundaysplit ±7°Mondaysplit ±6°Tuesdaysplit ±5°Wednesdaysplit ±6°
NWSNational Blend (NBM)
82°
Mostly clear
Today 82°·Low 62°·Rain 0%
AmericanNOAA GFS
84°
Cloudy
Today 84°·Low 61°·Rain 0%
EuropeanECMWF
84°
Clear
Today 84°·Low 62°·Rain 0%
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Riverside weather alerts and warnings

active National Weather Service watches, warnings and advisories

Checking the National Weather Service for active alerts covering Riverside…

Riverside weather in numbers

from 30 years of measured normals

Riverside swings 55°F across the year, from 97°F highs in July to 42°F lows in January, and February is usually the wettest month in a year that brings about 22 in of precipitation.

Warmest month
July
97°F average high
Coldest month
January
42°F average low
Wettest month
February
22 in a year
Below freezing
Never
overnight lows stay above 32°F
Comfortable
4 months
January, March, April and May
Residents
317,000
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The weather map: all three models at once

NWS, American, European side by side around Riverside and nearby towns.Live rain radar →
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Riverside hourly forecast: next 14 hours

consensus of the three models

Rain in the next 24 hours, model by model

each model's own hourly precipitation, side by side

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Riverside 10-day forecast, out to 14 days

where the models agree, and where they split
Today
Mostly clear
84° 62°
models agree
Tomorrow
Mostly clear
87° 60°
models agree
Sun
Partly cloudy
86° 63°
±7°
Mon
Cloudy
82° 65°
±6°
Tue
Clear
85° 64°
±5°
Wed
Clear
93° 67°
±6°
Thu
Clear
91° 69°
models agree
Fri
Mostly clear
90° 70°
±13°
Sat
Mostly clear
91° 70°
±14°
Sun
Light drizzle
94° 73°
±15°
Mon
Mostly clear
95° 75°
±20°
Tue
Cloudy
97° 79°
models agree
Wed
Clear
88° 70°
models agree
Thu
Clear
83° 67°
±5°

Riverside, California (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.

We grade every model against the weather that actually happened, so you can see which forecast model is most accurate in United States before you trust any single number.

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°

Which forecast is most accurate in Riverside?

CheckWeather Score, graded against the weather that actually happened
ProviderCheckWeather-scoreTempWindRainRun by
European logo
European ★ Best
93
/100rank #1
94±0.6°F97±1.0 mph8994% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
89
/100rank #2
87±1.3°F94±2.0 mph8994% hitNOAA / NCEP (United States)College Park, Maryland, USA

The CheckWeather Score blends temperature, wind and rain accuracy, each measured against ERA5 (the recorded weather) over the last 30 days across 1999 cities. Lower error means a higher score. See which forecast model is most accurate in United States, how we measure forecast accuracy, or which model each weather app uses.

What do you think of the forecasts?

your vote counts

The accuracy above is the measured record. This is your opinion: which forecast service do you trust most in United States? Give each 1 to 5 stars.

NWSNational Blend (NBM)
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AmericanNOAA GFS
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EuropeanECMWF
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One vote per service. Anonymous: we store no personal data, only a one-way hash of your connection for a day to stop double votes.

Where the models disagree

temperature and rain, judged separately
DayTemperatureRain
Today±2°82° to 84°models agree0% to 0% chance
Tomorrow±4°85° to 89°models agree0% to 0% chance
Sun±7°82° to 89°±2%0% to 2% chance
Mon±6°78° to 84°±3%3% to 6% chance
Tue±5°82° to 87°models agree0% to 0% chance

The models often agree on temperature and still split on rain, and rain is usually what decides whether a plan survives. A wide rain range means the shower is genuinely uncertain, not that the forecast is wrong.

Sunrise and sunset in Riverside

today, local time
Sunrise
06:35
Sunset
18:51
Daylight
12h 16m

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?
Over the last 30 days, the European model has been the most accurate for Riverside (CheckWeather Score 93/100), ahead of the American at 89. We grade every model against the recorded weather. See the US accuracy scoreboard for the full method.
What is the warmest month in Riverside?
July is typically the warmest month in Riverside, with average highs around 97°F.
How cold does Riverside get?
The coldest month in Riverside is January, when overnight lows average about 42°F.
How much rain does Riverside get?
Riverside sees roughly 22 in of precipitation a year, with February usually the wettest month.

Nearby

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