Weather in Harrison, Montana
High country wildflowers peak. Day 59 of spring. Read this microseason across nine climate regions →
Harrison, MT
Sunday, May 17 at 1:45 AM
42
°
Light Drizzle
Feels like
34°
Humidity
80%
Wind
11 mph
Sunrise
5:54 AM
Sunset
8:52 PM
Harrison, MT
Hour by hour · 24h
63°
7p
60°
8p
57°
9p
54°
10p
51°
11p
48°
12a
46°
1a
45°
2a
43°
3a
41°
4a
40°
5a
39°
6a
42°
7a
49°
8a
52°
9a
53°
10a
56°
11a
58°
12p
61°
1p
63°
2p
64°
3p
64°
4p
63°
5p
62°
6p
Harrison, MT
7-day forecast
- TodayMay 16Drizzle52%52°36°
- SundayMay 17Light Snow20%48°29°
- MondayMay 18Overcast12%53°29°
- TuesdayMay 19Light Drizzle11%62°36°
- WednesdayMay 20Light Snow Shwrs34%52°38°
- ThursdayMay 21Overcast24%62°37°
- FridayMay 22Overcast25%72°45°
Harrison, MT
Next 24 hours · Cool now
Harrison, MT
Anemometer · 24h winds · from true
From · True
WNW
296° · backing 10°
Direction
WNW
296°
Sustained
11
mph
Gust
19
mph
Peak 24h
27
avg 5
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
Harrison, MT
Air quality
47
AQI
Good
- PM 2.5
- 1.4 μg/m³
- PM 10
- 1.7 μg/m³
- NO₂
- 1.0 μg/m³
- Ozone
- 84.0 μg/m³
- UV Index
- 0.2 Low
Harrison, MT
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
11:21 AM
Sunrise
5:54 AM
Daylight
14h 58m
Sunset
8:52 PM
Civil dusk
3:28 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Harrison, MT
The moon
New Moon
0% illuminated
- Moonrise
- 11:54 AM
- Moonset
- 3:34 AM
- In sign
- ♉︎ Taurus
Harrison, MT
Microseason · 28 of 72
May 16–20
High country wildflowers peak
bird
Harrison at a glance
- Today vs. normal: 24°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).