Weather in Big Sky, Montana
High country wildflowers peak. Day 59 of spring. Read this microseason across nine climate regions →
Big Sky, MT
Sunday, May 17 at 1:47 AM
35
°
Snow
Feels like
30°
Humidity
97%
Wind
4 mph
Sunrise
5:53 AM
Sunset
8:49 PM
Big Sky, MT
Hour by hour · 24h
57°
7p
55°
8p
51°
9p
47°
10p
46°
11p
44°
12a
42°
1a
41°
2a
39°
3a
38°
4a
36°
5a
36°
6a
38°
7a
42°
8a
45°
9a
47°
10a
50°
11a
53°
12p
55°
1p
57°
2p
58°
3p
58°
4p
57°
5p
56°
6p
Big Sky, MT
7-day forecast
- TodayMay 16Snow77%49°29°
- SundayMay 17Snow25%39°19°
- MondayMay 18Light Snow Shwrs34%39°23°
- TuesdayMay 19Light Snow Shwrs—47°23°
- WednesdayMay 20Heavy Snow Shwrs40%41°30°
- ThursdayMay 21Light Drizzle21%51°29°
- FridayMay 22Overcast30%61°31°
Big Sky, MT
Next 24 hours · Cool now
Big Sky, MT
Anemometer · 24h winds · from true
From · True
SE
145° · backing 131°
Direction
SE
145°
Sustained
4
mph
Gust
4
mph
Peak 24h
26
avg 6
Beaufort · 2 · LIGHT 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
−24h−18h−12h−6hnow
Big Sky, MT
Air quality
50
AQI
Good
- PM 2.5
- 3.0 μg/m³
- PM 10
- 7.7 μg/m³
- NO₂
- 0.6 μg/m³
- Ozone
- 102.0 μg/m³
- UV Index
- 0.3 Low
Big Sky, MT
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
11:21 AM
Sunrise
5:53 AM
Daylight
14h 56m
Sunset
8:49 PM
Civil dusk
3:25 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Big Sky, MT
The moon
New Moon
0% illuminated
- Moonrise
- 11:55 AM
- Moonset
- 3:30 AM
- In sign
- ♉︎ Taurus
Big Sky, MT
Microseason · 28 of 72
May 16–20
High country wildflowers peak
bird
Big Sky at a glance
- Today vs. normal: 31°F below the seasonal normal for this latitude
- Last frost: May 18 (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).