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Forecast confidence: High · models disagree by 1°F

Twin Falls weather

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Partly cloudy,warmer tomorrow

NWS, the American and the European model agree on a high near 53° in Twin Falls today. Tomorrow: cloudy, around 60°, with a 0% chance of rain.

53°35°
60°34°
65°42°
55°40°
56°38°
61°41°
Todaymodels agreeTomorrowmodels agreeMondaysplit ±5°Tuesdaysplit ±4°Wednesdaysplit ±6°Thursdaysplit ±5°
NWSNational Blend (NBM)
37°
Mainly clear
Feels 32° · Wind 3 mph · Humidity 85%
AmericanNOAA GFS
36°
Mainly clear
Feels 30° · Wind 3 mph · Humidity 73%
EuropeanECMWF
38°
Clear
Feels 32° · Wind 3 mph · Humidity 77%

Latest for Twin Falls: NWS (National Blend (NBM)): 37° Mainly clear · American (NOAA GFS): 36° Mainly clear · European (ECMWF): 38° Clear.

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Twin Falls weather alerts and warnings

active National Weather Service watches, warnings and advisories

Checking the National Weather Service for active alerts covering Twin Falls…

Twin Falls weather in numbers

measured normals and 10 years of recorded weather

Twin Falls swings 69°F across the year, from 91°F highs in July to 22°F lows in December, and December is usually the wettest month in a year that brings about 10 in of precipitation. Over 10 years of recorded weather it averages 113 days a year at 77°F or above, 72 of them at 86°F or above, 120 frost nights, and rain on 71 days.

Warmest month
July
91°F average high
Coldest month
December
22°F average low
Wettest month
December
10 in a year
Comfortable
4 months
May, June, September and October
Residents
47,000
share this forecast
Most accurate here
European
90/100 CheckWeather Score
Warm days
113 days
a year at 77°F or above
Frost nights
120 nights
a year below 32°F
Rain days
71 days
a year with 0.04 in or more

Day counts are from the ERA5 reanalysis for Twin Falls’s grid square, 2016 to 2025, counted the same way for every city so the numbers compare. A reanalysis square is an area, not a weather station, so it is good for counting days and not for a single day’s record.

The weather map: all three models at once

NWS, American, European side by side around Twin Falls and nearby towns.Live rain radar →
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Twin Falls 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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Twin Falls 10-day forecast, out to 14 days

where the models agree, and where they split
Today
Partly cloudy
53° 35°
models agree
Tomorrow
Cloudy
60° 34°
models agree
Mon
Partly cloudy
65° 42°
±5°
Tue
Partly cloudy
55° 40°
±4°
Wed
Cloudy
56° 38°
±6°
Thu
Partly cloudy
61° 41°
±5°
Fri
Partly cloudy
55° 42°
±6°
Sat
Mostly clear
52° 38°
±12°
Sun
Clear
54° 37°
models agree
Mon
Mostly clear
57° 35°
±6°
Tue
Clear
57° 38°
±9°
Wed
Clear
57° 36°
±17°
Thu
Cloudy
57° 40°
±19°

Twin Falls, Idaho (ID) is at its warmest in Jul (average highs near 91°F) and coldest in Dec (lows around 22°F), with roughly 10 in of precipitation across the year. Below, compare what NWS, American, European forecast for Twin Falls 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.

Twin Falls climate by month

average daytime high and overnight low across a typical year (1991-2020)
Jan
38°
23°
Feb
44°
26°
Mar
52°
34°
Apr
59°
37°
May
70°
47°
Jun
78°
55°
Jul
91°
64°
Aug
89°
62°
Sep
78°
52°
Oct
62°
38°
Nov
47°
29°
Dec
37°
22°

Source: 1991-2020 averages, ERA5 for this place adjusted with NASA POWER.

How Twin Falls' weather has changed since 1995

30 years of daily data, 1995-2024, shown as change
+0.7°F

Around Twin Falls, the difference between 1995-2004 and 2015-2024 is +0.7°F, within the normal swing from year to year.

1995: −0.9°F vs the 30-year average1996: −1.1°F vs the 30-year average1997: −1.2°F vs the 30-year average1998: −0.5°F vs the 30-year average1999: ±0.0°F vs the 30-year average2000: +0.7°F vs the 30-year average2001: +1.1°F vs the 30-year average2002: −0.5°F vs the 30-year average2003: +1.8°F vs the 30-year average2004: −0.2°F vs the 30-year average2005: −0.7°F vs the 30-year average2006: ±0.0°F vs the 30-year average2007: +0.9°F vs the 30-year average2008: −1.6°F vs the 30-year average2009: −1.8°F vs the 30-year average2010: −1.8°F vs the 30-year average2011: −2.1°F vs the 30-year average2012: +1.5°F vs the 30-year average2013: −0.7°F vs the 30-year average2014: +0.7°F vs the 30-year average2015: +2.0°F vs the 30-year average2016: +0.2°F vs the 30-year average2017: −0.5°F vs the 30-year average2018: +0.4°F vs the 30-year average2019: −0.9°F vs the 30-year average2020: +0.9°F vs the 30-year average2021: +2.0°F vs the 30-year average2022: +0.4°F vs the 30-year average2023: −0.2°F vs the 30-year average2024: +1.8°F vs the 30-year average
1995each stripe is one year2024
cooler than averagearound averagewarmer than average

Days above 95°F

11 more days a year

2015-2024 against 1995-2004. Within the normal year-to-year swing

1995: −16 vs the 30-year average1996: −11 vs the 30-year average1997: −13 vs the 30-year average1998: −5 vs the 30-year average1999: −8 vs the 30-year average2000: +4 vs the 30-year average2001: +2 vs the 30-year average2002: +0 vs the 30-year average2003: +10 vs the 30-year average2004: −14 vs the 30-year average2005: −7 vs the 30-year average2006: +4 vs the 30-year average2007: +15 vs the 30-year average2008: −5 vs the 30-year average2009: −11 vs the 30-year average2010: −12 vs the 30-year average2011: −10 vs the 30-year average2012: +6 vs the 30-year average2013: +10 vs the 30-year average2014: −5 vs the 30-year average2015: −7 vs the 30-year average2016: −1 vs the 30-year average2017: +6 vs the 30-year average2018: +4 vs the 30-year average2019: +4 vs the 30-year average2020: −2 vs the 30-year average2021: +21 vs the 30-year average2022: +22 vs the 30-year average2023: −2 vs the 30-year average2024: +14 vs the 30-year average

Frost nights

3 fewer nights a year

2015-2024 against 1995-2004, below 32°F. Within the normal year-to-year swing

1995: −14 vs the 30-year average1996: +7 vs the 30-year average1997: +7 vs the 30-year average1998: +3 vs the 30-year average1999: +4 vs the 30-year average2000: +2 vs the 30-year average2001: −3 vs the 30-year average2002: +6 vs the 30-year average2003: −11 vs the 30-year average2004: −12 vs the 30-year average2005: −6 vs the 30-year average2006: −2 vs the 30-year average2007: −17 vs the 30-year average2008: +24 vs the 30-year average2009: +24 vs the 30-year average2010: +18 vs the 30-year average2011: +25 vs the 30-year average2012: −9 vs the 30-year average2013: +7 vs the 30-year average2014: −17 vs the 30-year average2015: −21 vs the 30-year average2016: −20 vs the 30-year average2017: −11 vs the 30-year average2018: −3 vs the 30-year average2019: −1 vs the 30-year average2020: +0 vs the 30-year average2021: −2 vs the 30-year average2022: +14 vs the 30-year average2023: +2 vs the 30-year average2024: −2 vs the 30-year average

Average wind

−1%

2015-2024 against 1995-2004. Within the normal year-to-year swing

1995: +3% vs the 30-year average1996: +5% vs the 30-year average1997: −2% vs the 30-year average1998: −5% vs the 30-year average1999: +5% vs the 30-year average2000: +0% vs the 30-year average2001: +0% vs the 30-year average2002: −2% vs the 30-year average2003: +0% vs the 30-year average2004: −5% vs the 30-year average2005: −5% vs the 30-year average2006: +0% vs the 30-year average2007: +0% vs the 30-year average2008: +8% vs the 30-year average2009: −2% vs the 30-year average2010: +3% vs the 30-year average2011: +0% vs the 30-year average2012: +3% vs the 30-year average2013: −2% vs the 30-year average2014: +3% vs the 30-year average2015: −5% vs the 30-year average2016: +0% vs the 30-year average2017: −2% vs the 30-year average2018: +3% vs the 30-year average2019: −2% vs the 30-year average2020: +5% vs the 30-year average2021: +3% vs the 30-year average2022: −2% vs the 30-year average2023: −7% vs the 30-year average2024: +0% vs the 30-year average

Bars: each year against the area's 30-year average. Dashed lines: the average of the first and the last ten years.

See the numbers year by year
YearTemp vs averageDays >95°F vs avgFrost nights vs avgWind vs avg
1995−0.9°F−16−14+3%
1996−1.1°F−11+7+5%
1997−1.2°F−13+7−2%
1998−0.5°F−5+3−5%
1999±0.0°F−8+4+5%
2000+0.7°F+4+2+0%
2001+1.1°F+2−3+0%
2002−0.5°F+0+6−2%
2003+1.8°F+10−11+0%
2004−0.2°F−14−12−5%
2005−0.7°F−7−6−5%
2006±0.0°F+4−2+0%
2007+0.9°F+15−17+0%
2008−1.6°F−5+24+8%
2009−1.8°F−11+24−2%
2010−1.8°F−12+18+3%
2011−2.1°F−10+25+0%
2012+1.5°F+6−9+3%
2013−0.7°F+10+7−2%
2014+0.7°F−5−17+3%
2015+2.0°F−7−21−5%
2016+0.2°F−1−20+0%
2017−0.5°F+6−11−2%
2018+0.4°F+4−3+3%
2019−0.9°F+4−1−2%
2020+0.9°F−2+0+5%
2021+2.0°F+21−2+3%
2022+0.4°F+22+14−2%
2023−0.2°F−2+2−7%
2024+1.8°F+14−2+0%

Source: NASA POWER daily data from the MERRA-2 reanalysis, 1995-2024. Each value describes a grid square of about 50 km around Twin Falls, not a weather station, and a square that takes in sea or a large lake runs milder than the city itself. That is why this section shows change against the square's own 30-year average rather than counts you could compare with a local station. Rain and snow are left out because their long-term record in this dataset is not consistent over time. "Within the normal year-to-year swing" means the change is smaller than the usual differences between single years.

Which forecast is most accurate in Twin Falls?

CheckWeather Score, graded against the weather that actually happened
ProviderCheckWeather-scoreTempWindRainRun by
European logo
European ★ Best
90
/100rank #1
93±0.7°F96±1.2 mph8290% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
89
/100rank #2
86±1.4°F94±1.8 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±1°53° to 54°±13%3% to 16% chance
Tomorrow±1°60° to 61°models agree0% to 0% chance
Mon±5°63° to 68°±2%21% to 23% chance
Tue±4°53° to 58°±5%26% to 31% chance
Wed±6°53° to 59°±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 Twin Falls

today, local time
Sunrise
08:01
Sunset
18:41
Daylight
10h 40m

Common questions

What's the weather in Twin Falls today?
Saturday, October 24: NWS, the American and the European model agree on a high near 53° in Twin Falls today. Tomorrow: cloudy, around 60°, with a 0% chance of rain. The forecast on this page refreshes live.
Will it rain in Twin Falls today or tomorrow?
Rain looks unlikely in Twin Falls on Sunday, October 25: no model gives more than 0% (NWS 0%, American 0%, European 0%). On Saturday, October 24 the highest chance of rain from any model is 16%. The hourly strip and the model-by-model rain panel above update live.
Which forecast is most accurate for Twin Falls?
Over the last 30 days, the European model has been the most accurate for Twin Falls (CheckWeather Score 90/100), 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 Twin Falls?
July is typically the warmest month in Twin Falls, with average highs around 91°F.
How cold does Twin Falls get?
The coldest month in Twin Falls is December, when overnight lows average about 22°F.
How much rain does Twin Falls get?
Twin Falls sees roughly 10 in of precipitation a year, with December usually the wettest month.
Is Twin Falls getting warmer?
Not clearly. In NASA's reanalysis for the area around Twin Falls, the difference between 1995-2004 and 2015-2024 is 0.7°F, within the normal swing from year to year.

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