Weather in Heart Butte, Montana
High country wildflowers peak. Day 59 of spring. Read this microseason across nine climate regions →
Heart Butte, MT
Sunday, May 17 at 1:50 AM
42
°
Overcast
Feels like
30°
Humidity
47%
Wind
19 mph
Sunrise
5:49 AM
Sunset
9:05 PM
Heart Butte, MT
Hour by hour · 24h
50°
7p
49°
8p
46°
9p
44°
10p
44°
11p
44°
12a
43°
1a
42°
2a
40°
10%
3a
39°
4a
39°
5a
40°
6a
41°
7a
43°
8a
45°
9a
47°
10a
49°
11a
51°
12p
52°
1p
53°
2p
54°
3p
55°
4p
53°
5p
52°
6p
Heart Butte, MT
7-day forecast
- TodayMay 16Overcast13%50°34°
- SundayMay 17Heavy Snow54%38°31°
- MondayMay 18Light Drizzle12%54°31°
- TuesdayMay 19Overcast17%57°39°
- WednesdayMay 20Light Rain58%50°39°
- ThursdayMay 21Overcast33%62°38°
- FridayMay 22Overcast37%68°47°
Heart Butte, MT
Next 24 hours · Cold now
Heart Butte, MT
Anemometer · 24h winds · from true
From · True
WNW
283° · veering 47°
Direction
WNW
283°
Sustained
19
mph
Gust
27
mph
Peak 24h
29
avg 13
Beaufort · 5 · FRESH 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
Heart Butte, MT
Air quality
42
AQI
Good
- PM 2.5
- 0.5 μg/m³
- PM 10
- 0.7 μg/m³
- NO₂
- 0.4 μg/m³
- Ozone
- 93.0 μg/m³
- UV Index
- 0.5 Low
Heart Butte, MT
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
11:14 AM
Sunrise
5:49 AM
Daylight
15h 16m
Sunset
9:05 PM
Civil dusk
3:44 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Heart Butte, MT
The moon
New Moon
0% illuminated
- Moonrise
- 11:46 AM
- Moonset
- 3:53 AM
- In sign
- ♉︎ Taurus
Heart Butte, MT
Microseason · 28 of 72
May 16–20
High country wildflowers peak
bird
Heart Butte at a glance
- Today vs. normal: 21°F below the seasonal normal for this latitude
- Last frost: June 5 (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).