Forecast confidence: Medium· models disagree by 5°F
Butte weather
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Partly cloudy,much the same tomorrow
NWS, the American and the European model put Butte's high today between 41° and 46°, a 5° split. Tomorrow: cloudy, around 45°, with a 0% chance of rain.
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Butte weather in numbers
measured normals and 10 years of recorded weather
Butte swings 71°F across the year, from 77°F highs in July to 6°F lows in January, and June is usually the wettest month in a year that brings about 12 in of precipitation. Over 10 years of recorded weather it averages 52 days a year at 77°F or above, 10 of them at 86°F or above, 199 frost nights, and rain on 100 days.
Warmest month
July
77°F average high
Coldest month
January
6°F average low
Wettest month
June
12 in a year
Comfortable
3 months
July, August and September
Residents
34,000
share this forecast
Most accurate here
European
95/100 CheckWeather Score
Warm days
52 days
a year at 77°F or above
Frost nights
199 nights
a year below 32°F
Rain days
100 days
a year with 0.04 in or more
Day counts are from the ERA5 reanalysis for Butte’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 Butte and nearby towns.Live rain radar →
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Butte 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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Butte 10-day forecast, out to 14 days
where the models agree, and where they split
Today
Partly cloudy
43°24°
±5°
Tomorrow
Cloudy
45°28°
±8°
Mon
Partly cloudy
49°28°
models agree
Tue
Light snow
45°32°
±10°
Wed
Light snow
45°28°
±5°
Thu
Light snow
45°29°
±8°
Fri
Light snow
44°29°
±9°
Sat
Light snow
44°26°
±7°
Sun
Light snow
45°23°
±7°
Mon
Partly cloudy
50°28°
±12°
Tue
Mostly clear
53°30°
±11°
Wed
Clear
51°32°
±18°
Thu
Cloudy
50°33°
±14°
Butte, Montana (MT) is at its warmest in Jul (average highs near 77°F) and coldest in Jan (lows around 6°F), with roughly 12 in of precipitation across the year. Below, compare what NWS, American, European forecast for Butte right now, and see exactly where they disagree.
average daytime high and overnight low across a typical year (1991-2020)
Jan
27°
6°
Feb
30°
10°
Mar
38°
15°
Apr
46°
25°
May
56°
33°
Jun
66°
42°
Jul
77°
49°
Aug
76°
50°
Sep
65°
40°
Oct
53°
29°
Nov
36°
19°
Dec
28°
10°
Source: 1991-2020 averages, ERA5 for this place adjusted with NASA POWER.
How Butte's weather has changed since 1995
30 years of daily data, 1995-2024, shown as change
+0.5°F
Around Butte, the difference between 1995-2004 and 2015-2024 is +0.5°F, within the normal swing from year to year.
1995each stripe is one year2024
cooler than averagearound averagewarmer than average
Days above 86°F
3 more days a year
2015-2024 against 1995-2004. Within the normal year-to-year swing
Frost nights
14 fewer nights a year
2015-2024 against 1995-2004, below 32°F
Average wind
−2%
2015-2024 against 1995-2004. Within the normal year-to-year swing
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
Year
Temp vs average
Days >86°F vs avg
Frost nights vs avg
Wind vs avg
1995
−0.6°F
−8
+20
+1%
1996
−1.5°F
−4
+11
+1%
1997
−1.2°F
−9
+1
+1%
1998
+0.4°F
+1
−1
−6%
1999
+0.4°F
−3
+10
+5%
2000
+0.4°F
+9
+7
+1%
2001
+1.5°F
+2
+3
−3%
2002
−0.5°F
+3
+19
+1%
2003
+1.9°F
+19
−7
−3%
2004
+0.3°F
−4
−4
−3%
2005
+0.1°F
−1
+1
−3%
2006
+0.3°F
+1
−1
+1%
2007
+0.4°F
+8
+8
+1%
2008
−2.4°F
−2
+12
+5%
2009
−2.1°F
−7
+10
+1%
2010
−2.1°F
−10
+0
−6%
2011
−1.7°F
−8
+3
+5%
2012
+1.2°F
+2
−5
+5%
2013
−0.1°F
−0
+1
+5%
2014
−0.5°F
−9
−12
+5%
2015
+2.1°F
−0
−23
−3%
2016
+0.6°F
−2
−13
+1%
2017
+0.1°F
+4
+11
−3%
2018
−0.8°F
−6
−8
−3%
2019
−2.1°F
−8
+5
−6%
2020
+0.1°F
−2
+2
+5%
2021
+1.7°F
+24
−4
+1%
2022
+0.4°F
+17
−13
+1%
2023
+1.0°F
−1
−27
−10%
2024
+2.8°F
+9
−11
−3%
Source: NASA POWER daily data from the MERRA-2 reanalysis, 1995-2024. Each value describes a grid square of about 50 km around Butte, 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 Butte?
CheckWeather Score, graded against the weather that actually happened
Provider
CheckWeather-score
Temp
Wind
Rain
Run by
European ★ Best
95
/100rank #1
95±0.5°F
95±1.4 mph
9597% hit
ECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American
83
/100rank #2
87±1.3°F
88±3.6 mph
7687% hit
NOAA / NCEP (United States)College Park, Maryland, USA
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.
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Where the models disagree
temperature and rain, judged separately
Day
Temperature
Rain
Today
±5°41° to 46°
models agree2% to 2% chance
Tomorrow
±8°42° to 50°
models agree0% to 0% chance
Mon
±4°47° to 51°
±9%17% to 26% chance
Tue
±10°41° to 51°
±7%39% to 46% chance
Wed
±5°42° to 47°
±24%12% to 36% 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 Butte
today, local time
Sunrise
07:59
Sunset
18:28
Daylight
10h 29m
Common questions
What's the weather in Butte today?
Saturday, October 24: NWS, the American and the European model put Butte's high today between 41° and 46°, a 5° split. Tomorrow: cloudy, around 45°, with a 0% chance of rain. The forecast on this page refreshes live.
Will it rain in Butte today or tomorrow?
Rain looks unlikely in Butte 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 2%. The hourly strip and the model-by-model rain panel above update live.
Which forecast is most accurate for Butte?
Over the last 30 days, the European model has been the most accurate for Butte (CheckWeather Score 95/100), ahead of the American at 83. We grade every model against the recorded weather. See the US accuracy scoreboard for the full method.
What is the warmest month in Butte?
July is typically the warmest month in Butte, with average highs around 77°F.
How cold does Butte get?
The coldest month in Butte is January, when overnight lows average about 6°F.
How much rain does Butte get?
Butte sees roughly 12 in of precipitation a year, with June usually the wettest month.
Is Butte getting warmer?
Not clearly. In NASA's reanalysis for the area around Butte, the difference between 1995-2004 and 2015-2024 is 0.5°F, within the normal swing from year to year.