Weather StoryAlmanac, microseasons, and the day's weather story.

Weather in Harlem, Montana

High country wildflowers peak. Day 59 of spring. Read this microseason across nine climate regions →

Harlem, MT
Sunday, May 17 at 5:13 AM
45
°
Overcast
Feels like
42°
Humidity
87%
Wind
1 mph
Sunrise
5:32 AM
Sunset
8:50 PM
Harlem, MT
Hour by hour · 24h
56°
11p
56°
12a
53°
1a
52°
2a
51°
3a
51°
4a
50°
5a
51°
6a
53°
7a
54°
8a
55°
9a
59°
10a
60°
11a
61°
12p
63°
1p
65°
2p
65°
3p
65°
4p
65°
5p
62°
6p
61°
7p
60°
8p
55°
9p
50°
10p
L 50°H 65°
Harlem, MT
7-day forecast
  1. Today
    May 16
    Overcast
    40%
    56°37°
  2. Sunday
    May 17
    Light Rain
    52%
    46°37°
  3. Monday
    May 18
    Overcast
    54°36°
  4. Tuesday
    May 19
    Overcast
    65°37°
  5. Wednesday
    May 20
    Drizzle
    29%
    67°49°
  6. Thursday
    May 21
    Overcast
    10%
    68°46°
  7. Friday
    May 22
    Overcast
    27%
    74°51°
Harlem, MT
Anemometer · 24h winds · from true
NESW
From · True
NNE
027° · veering 60°
Direction
NNE
027°
Sustained
1
mph
Gust
5
mph
Peak 24h
21
avg 7
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
avg 7 · pk 21 @ 5:00a
−24h−18h−12h−6hnow
Light breeze veering 60° from the nne.
Harlem, MT
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
926.0
+0.4 mb in 3h · steady · 27.34 inHg
Now
926.0
mb
3h
+0.4
mb
12h
-1.0
mb
24h
+0.5
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 925929
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Harlem, MT
Air quality
37
AQI
Good
PM 2.5
2.5 μg/m³
PM 10
3.1 μg/m³
NO₂
2.7 μg/m³
Ozone
60.0 μg/m³
UV Index
0.0 Low
Harlem, MT
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
10:56 AM
Sunrise
5:32 AM
Daylight
15h 18m
Sunset
8:50 PM
Civil dusk
3:29 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Harlem, MT
The moon
New Moon
0% illuminated
Moonrise
11:28 AM
Moonset
3:36 AM
In sign
♊︎ Gemini
Harlem, MT
Microseason · 28 of 72
May 16–20

High country wildflowers peak

bird
Jan 137% of the yearDec 31

Read this microseason across nine climate regions →

Harlem at a glance

  • Today vs. normal: 18°F below the seasonal normal for this latitude
  • Last frost: June 6 (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).

ZIP codes in Harlem

Climate normals from the Open-Meteo Climate API. Köppen approximation from NOAA NCEI U.S. Climate Regions. See methodology for data sources, editorial rules, and corrections. Maintainer: Brian Tighe.