Weather in Saint Mary, Montana
High country wildflowers peak. Day 59 of spring. Read this microseason across nine climate regions →
Saint Mary, MT
Sunday, May 17 at 4:07 AM
36
°
Overcast
Feels like
28°
Humidity
91%
Wind
9 mph
Sunrise
5:50 AM
Sunset
9:09 PM
Saint Mary, MT
Hour by hour · 24h
42°
10p
41°
11p
40°
12a
39°
1a
39°
2a
38°
12%
3a
37°
12%
4a
37°
20%
5a
38°
6a
38°
7a
40°
8a
42°
9a
43°
10a
45°
11a
46°
12p
48°
1p
49°
11%
2p
50°
3p
50°
4p
49°
5p
47°
6p
46°
7p
44°
8p
41°
9p
Saint Mary, MT
7-day forecast
- TodayMay 16Heavy Snow40%46°33°
- SundayMay 17Heavy Snow63%37°31°
- MondayMay 18Overcast28%47°32°
- TuesdayMay 19Foggy22%53°37°
- WednesdayMay 20Light Snow Shwrs57%49°39°
- ThursdayMay 21Light Drizzle31%59°37°
- FridayMay 22Overcast42%64°47°
Saint Mary, MT
Next 24 hours · Cold now
Saint Mary, MT
Anemometer · 24h winds · from true
From · True
NE
038° · backing 173°
Direction
NE
038°
Sustained
9
mph
Gust
13
mph
Peak 24h
28
avg 9
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
−24h−18h−12h−6hnow
Saint Mary, MT
Air quality
42
AQI
Good
- PM 2.5
- 0.8 μg/m³
- PM 10
- 1.2 μg/m³
- NO₂
- 1.2 μg/m³
- Ozone
- 80.0 μg/m³
- UV Index
- 0.0 Low
Saint Mary, MT
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
11:14 AM
Sunrise
5:50 AM
Daylight
15h 19m
Sunset
9:09 PM
Civil dusk
3:48 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Saint Mary, MT
The moon
New Moon
0% illuminated
- Moonrise
- 11:46 AM
- Moonset
- 3:58 AM
- In sign
- ♊︎ Gemini
Saint Mary, MT
Microseason · 28 of 72
May 16–20
High country wildflowers peak
bird
Saint Mary at a glance
- Today vs. normal: 27°F below the seasonal normal for this latitude
- Last frost: June 7 (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).