Weather in Heron, Montana
High country wildflowers peak. Day 59 of spring. Read this microseason across nine climate regions →
Heron, MT
Sunday, May 17 at 4:03 AM
40
°
Mostly Clear
Feels like
36°
Humidity
77%
Wind
2 mph
Sunrise
6:03 AM
Sunset
9:17 PM
Heron, MT
Hour by hour · 24h
52°
13%
10p
51°
17%
11p
49°
16%
12a
49°
12%
1a
49°
2a
47°
3a
46°
4a
45°
5a
43°
6a
43°
7a
46°
8a
45°
9a
46°
10a
47°
11a
50°
12p
50°
1p
53°
10%
2p
54°
10%
3p
55°
4p
55°
5p
54°
6p
53°
17%
7p
46°
23%
8p
45°
26%
9p
Heron, MT
7-day forecast
- TodayMay 16Snow61%47°39°
- SundayMay 17Light Drizzle32%55°38°
- MondayMay 18Drizzle21%62°40°
- TuesdayMay 19Showers18%61°40°
- WednesdayMay 20Light Drizzle12%66°39°
- ThursdayMay 21Overcast15%72°42°
- FridayMay 22Overcast15%76°46°
Heron, MT
Next 24 hours · Cool now
Heron, MT
Anemometer · 24h winds · from true
From · True
NNW
339° · backing 57°
Direction
NNW
339°
Sustained
2
mph
Gust
6
mph
Peak 24h
14
avg 5
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
−24h−18h−12h−6hnow
Heron, MT
Air quality
37
AQI
Good
- PM 2.5
- 0.5 μg/m³
- PM 10
- 0.6 μg/m³
- NO₂
- 1.9 μg/m³
- Ozone
- 71.0 μg/m³
- UV Index
- 0.0 Low
Heron, MT
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
11:27 AM
Sunrise
6:03 AM
Daylight
15h 14m
Sunset
9:17 PM
Civil dusk
3:55 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Heron, MT
The moon
New Moon
0% illuminated
- Moonrise
- 11:59 AM
- Moonset
- 4:05 AM
- In sign
- ♊︎ Gemini
Heron, MT
Microseason · 28 of 72
May 16–20
High country wildflowers peak
bird
Heron at a glance
- Today vs. normal: 24°F below the seasonal normal for this latitude
- Last frost: June 3 (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).