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

Weather in Gallatin Gateway, Montana

High country wildflowers peak. Day 59 of spring. Read this microseason across nine climate regions →

Gallatin Gateway, MT
Sunday, May 17 at 4:07 AM
36
°
Overcast
Feels like
28°
Humidity
83%
Wind
9 mph
Sunrise
5:52 AM
Sunset
8:50 PM
Gallatin Gateway, MT
Hour by hour · 24h
51°
10p
50°
11p
47°
12a
45°
1a
44°
2a
43°
3a
42°
4a
43°
5a
44°
6a
43°
7a
49°
8a
52°
9a
54°
10a
55°
11a
58°
12p
61°
1p
63°
2p
64°
3p
64°
4p
63°
5p
62°
6p
60°
7p
56°
8p
50°
9p
L 42°H 64°
Gallatin Gateway, MT
7-day forecast
  1. Today
    May 16
    Snow
    81%
    54°34°
  2. Sunday
    May 17
    Overcast
    19%
    47°31°
  3. Monday
    May 18
    Overcast
    22%
    50°32°
  4. Tuesday
    May 19
    Overcast
    60°33°
  5. Wednesday
    May 20
    Heavy Snow Shwrs
    35%
    49°36°
  6. Thursday
    May 21
    Light Drizzle
    27%
    61°36°
  7. Friday
    May 22
    Overcast
    31%
    70°42°
Gallatin Gateway, MT
Anemometer · 24h winds · from true
NESW
From · True
WNW
298° · veering 73°
Direction
WNW
298°
Sustained
9
mph
Gust
15
mph
Peak 24h
19
avg 7
Beaufort · 3 · GENTLE 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 7 · pk 19 @ 3:00a
−24h−18h−12h−6hnow
Light breeze veering 73° from the wnw.
Gallatin Gateway, MT
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
844.6
-1.5 mb in 3h · falling · 24.94 inHg
Now
844.6
mb
3h
-1.5
mb
12h
+2.5
mb
24h
+2.0
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 842846
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Gallatin Gateway, MT
Air quality
43
AQI
Good
PM 2.5
1.3 μg/m³
PM 10
1.5 μg/m³
NO₂
1.8 μg/m³
Ozone
82.0 μg/m³
UV Index
0.0 Low
Gallatin Gateway, MT
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
11:19 AM
Sunrise
5:52 AM
Daylight
14h 58m
Sunset
8:50 PM
Civil dusk
3:25 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Gallatin Gateway, MT
The moon
New Moon
0% illuminated
Moonrise
11:53 AM
Moonset
3:31 AM
In sign
♊︎ Gemini
Gallatin Gateway, MT
Microseason · 28 of 72
May 16–20

High country wildflowers peak

bird
Jan 137% of the yearDec 31

Read this microseason across nine climate regions →

Gallatin Gateway at a glance

  • Today vs. normal: 30°F below the seasonal normal for this latitude
  • Last frost: May 20 (climatological average for this latitude)
  • Microseason: 28 of 72, May 16–20
  • Planting window: Direct sow okra, melons, and southern peas. Thin carrot rows.

Right now in the garden

Cool-season window is open

As of May 17, the cool-season window is open or about to open. Direct-sow peas, lettuce, spinach, radishes, and brassicas now. Hold off on warm-season crops until 1–2 weeks after the last spring frost (around May).

ZIP codes in Gallatin Gateway

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.