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

Bynum, Montana Weather

Pikas hayfeeding in granite peaks. Day 77 of spring. Read this microseason across nine climate regions →

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

Bynum, MT
Thursday, June 4 at 11:32 PM
66
°
Clear
Feels like
57°
Humidity
37%
Wind
18 mph
Sunrise
5:32 AM
Sunset
9:23 PM
Bynum, MT
Hour by hour · 24h
24-Hour ForecastBynum, MT: 24-hour forecast. Temperatures range from 45 to 73 degrees Fahrenheit.
L 45°H 73°
Bynum, MT
7-day forecast
  1. Today
    Jun 4
    Partly Cloudy
    70°50°
  2. Friday
    Jun 5
    Overcast
    73°45°+3°
  3. Saturday
    Jun 6
    Light Drizzle
    22%
    70°49°-3°
  4. Sunday
    Jun 7
    Overcast
    33%
    55°42°-15°
  5. Monday
    Jun 8
    Overcast
    12%
    70°42°+15°
  6. Tuesday
    Jun 9
    Light Drizzle
    45%
    0.02″
    63°52°-7°
  7. Wednesday
    Jun 10
    Light Drizzle
    45%
    0.01″
    74°53°+11°
Bynum, MT
Anemometer · 24h winds · from true
NESW
From · True
NW
309° · backing 35°
Direction
NW
309°
Sustained
18
mph
Gust
23
mph
Peak 24h
25
avg 10
Beaufort · 4 · MOD BRZ
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 10 · pk 25 @ 10:00a
0102030MPHB1B2B3B4B5B6B7-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 3115SUSTGUST
−24h−18h−12h−6hnow
A fresh breeze drives the nw-bound air across the harbor.
Bynum, MT
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
878.4
-2.0 mb in 3h · falling · 25.94 inHg
Now
878.4
mb
3h
-2.0
mb
12h
-1.3
mb
24h
-0.6
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 874879
870875880885-21h-18h-15h-12h-9h-6h-3h-24hNOW878.7874.0876.1
−24h−18h−12h−6hnow
Deep low still deepening — rough seas, strong wind, persistent rain.
Bynum, MT
Air quality
45
AQI
Good
+13 in 6h

Ozone at AQI 44 — peak already passed at 1 PM under clear skies. AQI up 13 over the last 6 hours (gradual rise). Levels should ease through evening.

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

PM 2.5Good
4.4μg/m³
PM 10Good
5μg/m³
NO₂Good
0μg/m³
OzoneDRIVERModerate
94μg/m³
UV IndexModerate
3.3

What's driving it

Ozone × UV × Sky

Ozone at AQI 44 — peak already passed at 1 PM under clear skies. Levels should ease through evening.

Present
AQI 44
UV peak
2.8 at earlier today
Sky at peak
clear
Projected peak
AQI 44
Bynum, MT
Sky cover · visibility · 24h
Cloud cover
0%
CLEAR
100%0%−24h−18h−12h−6hnow

Visibility
103.8mi
UNLIMITED
112 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
23:32 UTC ·Bynum, MT · NOAA NESDIS / STAR · 21696x21696 px
Continental US · GOES-19 ABI
CONUS Sector · Visible · GeoColor
GOES-19 CONUS Visible · GeoColor
Daytime true-color, blue-light/IR sandwich at night
23:32 UTC ·Bynum, MT · NOAA NESDIS / STAR · 5-min cadence · 10000x6000 px
Bynum, MT
Satellite · infrared · animated
Bynum, MT
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Bynum, MT
Almanac · Thursday, June 4
A summer fog for fair, a winter fog for rain.
Civil dawn
10:53 AM
Sunrise
5:32 AM
Daylight
15h 51m
Sunset
9:23 PM
Civil dusk
4:04 AM
Planting note
Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Bynum, MT
The moon
Waning Gibbous
81% illuminated
Moonrise
6:31 AM
Moonset
3:07 PM
In sign
♒︎ Aquarius
Bynum, MT
Microseason
Jun 1–5

Pikas hayfeeding in granite peaks

insect
Jan 142% of the yearDec 31

Read this microseason across nine climate regions →

Bynum at a glance

  • Today vs. normal: 66°F — typical for the season
  • Last frost: June 3 (climatological average for this latitude)
  • Microseason: Jun 1–5
  • Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.

Right now in the garden

Warm-season window is open

As of June 4, the last spring frost has passed for most years. Transplant tomatoes, peppers, eggplants, basil, and cucurbits (cucumbers, squash, melons) now. Direct-sow beans and corn into warm soil.

ZIP codes in Bynum

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.