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CheckWeather USRapid City
Forecast confidence: High · models disagree by 2°F

Rapid City weather

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Heavy drizzle,much the same tomorrow

NWS, the American and the European model agree on a high near 93° in Rapid City today. Tomorrow looks mostly clear around 93°, with a 27% chance of rain.

93°70°
93°66°
92°70°
84°61°
80°55°
91°59°
Todaymodels agreeTomorrowmodels agreeMondaymodels agreeTuesdaymodels agreeWednesdaysplit ±6°Thursdaysplit ±7°
NWSNational Blend (NBM)
93°
Heavy drizzle
Today 93°·Low 71°·Rain 32%
AmericanNOAA GFS
94°
Cloudy
Today 94°·Low 69°·Rain 32%
EuropeanECMWF
92°
Partly cloudy
Today 92°·Low 72°·Rain 29%

The weather map: all three models at once

NWS, American, European side by side around Rapid City and nearby towns.Live rain radar →
Loading the three model maps…

Next 14 hours

consensus of the three models

14-day forecast

where the models agree, and where they split
Today
Heavy drizzle
93° 70°
models agree
Tomorrow
Mostly clear
93° 66°
models agree
Mon
Cloudy
92° 70°
models agree
Tue
Mostly clear
84° 61°
models agree
Wed
Clear
80° 55°
±6°
Thu
Clear
91° 59°
±7°
Fri
Mostly clear
86° 57°
±5°
Sat
Partly cloudy
70° 52°
±10°
Sun
Partly cloudy
62° 48°
±22°
Mon
Mostly clear
71° 48°
±19°
Tue
Light drizzle
77° 50°
±7°
Wed
Partly cloudy
80° 55°
±7°
Thu
Cloudy
77° 58°
models agree
Fri
Cloudy
75° 60°
models agree

Rapid City, SD is at its warmest in Jul (average highs near 85°F) and coldest in Jan (lows around 18°F), with roughly 18 in of precipitation across the year. Below, compare what NWS, American, European forecast for Rapid City 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.

Rapid City climate by month

average daytime high and overnight low across a typical year
Jan
35°
18°
Feb
43°
21°
Mar
43°
22°
Apr
55°
33°
May
69°
47°
Jun
77°
56°
Jul
85°
61°
Aug
84°
62°
Sep
79°
56°
Oct
62°
41°
Nov
48°
29°
Dec
43°
25°

Which forecast is most accurate in Rapid City?

CheckWeather Score — graded against the weather that actually happened
ProviderCheckWeather Score🌡 Temp💨 Wind🌧 RainRun by
European logo
European ★ Best
85
/100rank #1
81±1.9°F94±2.0 mph8290% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
73
/100rank #2
77±2.3°F93±2.1 mph5374% 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.

Where the models disagree

temperature and rain, judged separately
DayTemperatureRain
Today±2°92° to 94°±3%29% to 32% chance
Tomorrow±1°93° to 94°±23%4% to 27% chance
Mon±1°91° to 93°±26%9% to 35% chance
Tue±3°83° to 86°±1%0% to 1% chance
Wed±6°77° to 83°±1%1% to 2% 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 Rapid City

today, local time
Sunrise
06:21
Sunset
19:22
Daylight
13h 1m

Common questions

What's the weather in Rapid City today?
On this page we show what NWS, American, European each forecast for Rapid City 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 Rapid City today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Rapid City 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 Rapid City?
Over the last 30 days, the European model has been the most accurate for Rapid City (CheckWeather Score 85/100), ahead of the American at 73. We grade every model against the recorded weather. See the US accuracy scoreboard for the full method.
What is the warmest month in Rapid City?
July is typically the warmest month in Rapid City, with average highs around 85°F.
How cold does Rapid City get?
The coldest month in Rapid City is January, when overnight lows average about 18°F.
How much rain does Rapid City get?
Rapid City sees roughly 18 in of precipitation a year, with June usually the wettest month.

Nearby

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