Weather in Dewey, Montana
High country wildflowers peak. Day 59 of spring. Read this microseason across nine climate regions →
Dewey, MT
Sunday, May 17 at 5:13 AM
31
°
Clear
Feels like
23°
Humidity
60%
Wind
5 mph
Sunrise
5:58 AM
Sunset
8:57 PM
Dewey, MT
Hour by hour · 24h
47°
11p
47°
12a
44°
1a
42°
2a
43°
3a
41°
4a
39°
5a
39°
6a
41°
7a
43°
8a
46°
9a
48°
10a
51°
11a
52°
12p
55°
1p
56°
2p
57°
3p
58°
4p
58°
5p
57°
6p
55°
7p
51°
8p
48°
9p
46°
10p
Dewey, MT
7-day forecast
- TodayMay 16Overcast36%45°31°
- SundayMay 17Heavy Snow37%45°25°
- MondayMay 18Overcast—49°29°
- TuesdayMay 19Overcast—58°33°
- WednesdayMay 20Light Snow Shwrs39%52°37°
- ThursdayMay 21Foggy25%63°35°
- FridayMay 22Overcast23%69°43°
Dewey, MT
Next 24 hours · Cold now
Dewey, MT
Anemometer · 24h winds · from true
From · True
NNW
328° · backing 88°
Direction
NNW
328°
Sustained
5
mph
Gust
17
mph
Peak 24h
31
avg 7
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
Dewey, MT
Air quality
43
AQI
Good
- PM 2.5
- 1.0 μg/m³
- PM 10
- 1.3 μg/m³
- NO₂
- 1.1 μg/m³
- Ozone
- 80.0 μg/m³
- UV Index
- 0.0 Low
Dewey, MT
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
11:25 AM
Sunrise
5:58 AM
Daylight
14h 59m
Sunset
8:57 PM
Civil dusk
3:33 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Dewey, MT
The moon
New Moon
0% illuminated
- Moonrise
- 11:58 AM
- Moonset
- 3:39 AM
- In sign
- ♊︎ Gemini
Dewey, MT
Microseason · 28 of 72
May 16–20
High country wildflowers peak
bird
Dewey at a glance
- Today vs. normal: 35°F below the seasonal normal for this latitude
- Last frost: May 21 (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).