Weather StoryAlmanac, microseasons, and the day's weather story.

Brockton, Montana Weather

Monsoon storms drench the south. Day 14 of summer. Read this microseason across nine climate regions →

Brockton weather forecast — hour by hour, 7-day outlook, NOAA radar

Brockton, MT
Saturday, July 4 at 1:31 AM
62
°
Overcast
Feels like
63°
Humidity
86%
Wind
3 mph
Sunrise
11:05 PM
Sunset
3:02 PM
Brockton, MT
Hour by hour · 24h
24-Hour ForecastBrockton, MT: 24-hour forecast. Temperatures range from 58 to 86 degrees Fahrenheit.
L 58°H 86°
Brockton, MT
7-day forecast
  1. Today
    Jul 4
    Overcast
    86°58°
  2. Sunday
    Jul 5
    Overcast
    14%
    91°66°+5°
  3. Monday
    Jul 6
    Overcast
    19%
    85°68°-6°
  4. Tuesday
    Jul 7
    Showers
    55%
    0.89″
    70°60°-15°
  5. Wednesday
    Jul 8
    Overcast
    51%
    82°56°+12°
  6. Thursday
    Jul 9
    Overcast
    20%
    89°65°+7°
  7. Friday
    Jul 10
    Clear
    20%
    82°61°-7°
Brockton, MT
Anemometer · 24h winds · from true
NESW
From · True
N
356° · backing 87°
Direction
N
356°
Sustained
3
mph
Gust
3
mph
Peak 24h
20
avg 8
Beaufort · 1 · LIGHT AIR
0
CALM
<1
1
LIGHT AIR
1–3
2
LIGHT BRZ
4–7
3
GENTLE BRZ
8–12
4
MOD BRZ
13–18
5
FRESH BRZ
19–24
6
STRONG BRZ
25–31
7
NEAR GALE
32–38
24h · sust vs gust · mph
avg 8 · pk 20 @ 2:00a
010MPHB1B2B3B4-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 115SUSTGUST
−24h−18h−12h−6hnow
A whisper of wind — leaves barely shift on the trees.
Brockton, MT
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
946.4
+2.4 mb in 3h · rising rapidly · 27.95 inHg
Now
946.4
mb
3h
+2.4
mb
12h
+0.8
mb
24h
+4.6
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 942947
935940945950955-21h-18h-15h-12h-9h-6h-3h-24hNOW946.5941.9946.5
−24h−18h−12h−6hnow
The low is filling — pressure climbing out of storm territory.
Brockton, MT
Air quality
49
AQI
Good
-6 in 6h

AQI 49 (Good), driven by PM2.5. AQI down 6 over the last 6 hours (gradual decline). PM2.5 at 6.5 µg/m³ (AQI 36) with a 0.87 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in calm air, not road dust.

OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.

PM 2.5DRIVERGood
6.5μg/m³
PM 10Good
8μg/m³
NO₂Good
9μg/m³
OzoneGood
45μg/m³
UV IndexLow
0.0

What's driving it

PM × Wind × Precip

PM2.5 at 6.5 µg/m³ (AQI 36) with a 0.87 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in calm air, not road dust.

PM2.5/PM10
0.87
Wind
calm
Recent rain
0h in last 6h
Pattern
stagnant smoke
Brockton, MT
Sky cover · visibility · 24h
Cloud cover
100%
OVERCAST
100%0%−24h−18h−12h−6hnow

Visibility
32.2mi
UNLIMITED
89 mi0 mi−24h−18h−12h−6hnow
Earth · GOES-19 ABI
Full Disk · Visible · GeoColor
GOES-19 full disk Visible · GeoColor
True-color daytime, blue/IR sandwich at night
07:31 UTC · Brockton, MT · NOAA NESDIS / STAR · up to 10848 px
Continental US · GOES-19 ABI
CONUS Sector · Visible · GeoColor
GOES-19 CONUS Visible · GeoColor
Daytime true-color, blue-light/IR sandwich at night
07:31 UTC · Brockton, MT · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Brockton, MT
Satellite · infrared · animated
Brockton, MT
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Brockton, MT
Almanac · Saturday, July 4
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
4:25 AM
Sunrise
11:05 PM
Daylight
15h 57m
Sunset
3:02 PM
Civil dusk
9:44 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
Brockton, MT
The moon
Waning Gibbous
83% illuminated
Moonrise
11:08 PM
Moonset
9:58 AM
In sign
♓︎ Pisces
Brockton, MT
Microseason
Jul 1–5

Monsoon storms drench the south

weather
Jan 150% of the yearDec 31

Read this microseason across nine climate regions →

Brockton at a glance

  • Today vs. normal: 62°F — typical for the season
  • Last frost: June 4 (climatological average for this latitude)
  • Microseason: Jul 1–5
  • Planting window: Harvest early potatoes. Begin drying onions on the surface.

ZIP code: 59213

15-Day Forecast — Brockton

  1. Sat86°58°7%
  2. Sun91°66°14%
  3. Mon85°68°19%
  4. Tue70°60°55%
  5. Wed82°56°51%
  6. Thu89°65°20%
  7. Fri82°61°20%
  8. Sat88°59°9%
  9. Sun85°69°11%
  10. Mon81°62°8%
  11. Tue94°61°16%
  12. Wed101°67°15%
  13. Thu90°73°16%
  14. Fri93°64°6%
  15. Sat106°72°6%

Forecast data from Open-Meteo (CC BY 4.0).

Right now in the garden

Peak growing season

As of July 4, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.

SPC Convective Outlook

Storm Prediction Center — Brockton

SPC includes Brockton in the general thunderstorm area tomorrow — no severe risk, but storms are possible.

  • TODAYNONENo severe risk
  • TOMORROWTSTMGeneral Thunderstorms
  • DAY 3TSTMGeneral Thunderstorms

Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.

Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.

ZIP codes in Brockton

  • 59213

Climate normals from the Open-Meteo Climate API. Köppen approximation from NOAA NCEI U.S. Climate Regions. See methodology for data sources, editorial rules, and corrections. Maintainer: Brian Tighe.