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South Glastonbury, Montana Weather

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

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

South Glastonbury, MT
Thursday, June 4 at 7:04 AM
55
°
Overcast
Feels like
50°
Humidity
53%
Wind
3 mph
Sunrise
5:36 AM
Sunset
9:06 PM
South Glastonbury, MT
Hour by hour · 24h
24-Hour ForecastSouth Glastonbury, MT: 24-hour forecast. Temperatures range from 52 to 72 degrees Fahrenheit.
L 52°H 72°
South Glastonbury, MT
7-day forecast
  1. Today
    Jun 4
    Overcast
    72°52°
  2. Friday
    Jun 5
    Partly Cloudy
    83°49°+11°
  3. Saturday
    Jun 6
    Overcast
    15%
    82°51°-1°
  4. Sunday
    Jun 7
    Light Drizzle
    36%
    0.01″
    65°42°-17°
  5. Monday
    Jun 8
    Overcast
    19%
    74°38°+9°
  6. Tuesday
    Jun 9
    Overcast
    34%
    71°52°-3°
  7. Wednesday
    Jun 10
    Light Drizzle
    58%
    79°51°+8°
South Glastonbury, MT
Anemometer · 24h winds · from true
NESW
From · True
E
086° · backing 154°
Direction
E
086°
Sustained
3
mph
Gust
15
mph
Peak 24h
20
avg 7
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 7 · pk 20 @ 1:00p
0102030MPHB1B2B3B4B5B6-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 265SUSTGUST
−24h−18h−12h−6hnow
Light breeze backing 154° from the e.
South Glastonbury, MT
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
846.3
+0.8 mb in 3h · rising · 24.99 inHg
Now
846.3
mb
3h
+0.8
mb
12h
-3.4
mb
24h
-5.0
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 846856
840845850855860-21h-18h-15h-12h-9h-6h-3h-24hNOW855.5845.5847.6
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
South Glastonbury, MT
Air quality
44
AQI
Good
-22 in 6h

Ozone at AQI 36. AQI down 22 over the last 6 hours — air quality is improving sharply. Overcast through the UV peak window (cloud cover ~70%) — afternoon ozone should stay flat.

OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 8 AM.

PM 2.5Good
2.6μg/m³
PM 10Good
4μg/m³
NO₂Good
4μg/m³
OzoneDRIVERModerate
77μg/m³
UV IndexLow
0.0

What's driving it

Ozone × UV × Sky

Ozone at AQI 36. Overcast through the UV peak window (cloud cover ~70%) — afternoon ozone should stay flat.

Present
AQI 36
UV peak
3.3 at 1 PM
Sky at peak
overcast
Projected peak
AQI 8
South Glastonbury, MT
Sky cover · visibility · 24h
Cloud cover
80%
MOSTLY CLOUDY
100%0%−24h−18h−12h−6hnow

Visibility
71.8mi
UNLIMITED
185 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
07:04 UTC ·South Glastonbury, 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
07:04 UTC ·South Glastonbury, MT · NOAA NESDIS / STAR · 5-min cadence · 10000x6000 px
South Glastonbury, MT
Satellite · infrared · animated
South Glastonbury, MT
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
South Glastonbury, MT
Almanac · Thursday, June 4
A summer fog for fair, a winter fog for rain.
Civil dawn
11:02 AM
Sunrise
5:36 AM
Daylight
15h 30m
Sunset
9:06 PM
Civil dusk
3:43 AM
Planting note
Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
South Glastonbury, MT
The moon
Waning Gibbous
86% illuminated
Moonrise
6:13 AM
Moonset
3:11 PM
In sign
♑︎ Capricorn
South Glastonbury, MT
Microseason
Jun 1–5

Pikas hayfeeding in granite peaks

insect
Jan 142% of the yearDec 31

Read this microseason across nine climate regions →

South Glastonbury at a glance

  • Today vs. normal: 15°F below the seasonal normal for this latitude
  • Last frost: May 18 (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 South Glastonbury

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.