Weather in Lewistown, Montana
High country wildflowers peak. Day 59 of spring. Read this microseason across nine climate regions →
Lewistown, MT
Sunday, May 17 at 1:50 AM
40
°
Overcast
Feels like
34°
Humidity
84%
Wind
6 mph
Sunrise
5:40 AM
Sunset
8:47 PM
Lewistown, MT
Hour by hour · 24h
58°
7p
56°
8p
53°
9p
50°
10p
49°
11p
49°
12a
49°
1a
49°
2a
46°
3a
46°
4a
45°
5a
45°
6a
47°
7a
50°
8a
52°
9a
54°
10a
56°
11a
58°
12p
59°
1p
60°
2p
61°
3p
61°
4p
61°
5p
60°
6p
Lewistown, MT
7-day forecast
- TodayMay 16Rain62%57°37°
- SundayMay 17Heavy Snow32%45°33°
- MondayMay 18Light Snow Shwrs33%46°30°
- TuesdayMay 19Heavy Drizzle—58°32°
- WednesdayMay 20Showers51%46°40°
- ThursdayMay 21Light Rain21%58°39°
- FridayMay 22Overcast37%65°44°
Lewistown, MT
Next 24 hours · Cool now
Lewistown, MT
Anemometer · 24h winds · from true
From · True
S
178° · backing 92°
Direction
S
178°
Sustained
6
mph
Gust
7
mph
Peak 24h
26
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
Lewistown, MT
Air quality
39
AQI
Good
- PM 2.5
- 0.2 μg/m³
- PM 10
- 0.3 μg/m³
- NO₂
- 0.9 μg/m³
- Ozone
- 76.0 μg/m³
- UV Index
- 0.1 Low
Lewistown, MT
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
11:06 AM
Sunrise
5:40 AM
Daylight
15h 07m
Sunset
8:47 PM
Civil dusk
3:24 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Lewistown, MT
The moon
New Moon
0% illuminated
- Moonrise
- 11:39 AM
- Moonset
- 3:31 AM
- In sign
- ♉︎ Taurus
Lewistown, MT
Microseason · 28 of 72
May 16–20
High country wildflowers peak
bird
Lewistown at a glance
- Today vs. normal: 25°F below the seasonal normal for this latitude
- Last frost: May 28 (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).