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

Weather in Helena, Ohio

Roses open along the stoops. Day 59 of spring. Read this microseason across nine climate regions →

Helena, OH
Sunday, May 17 at 2:48 AM
69
°
Mostly Clear
Feels like
69°
Humidity
79%
Wind
11 mph
Sunrise
6:13 AM
Sunset
8:45 PM
Helena, OH
Hour by hour · 24h
51°
10p
49°
11p
47°
12a
46°
1a
44°
2a
43°
3a
42°
4a
41°
5a
40°
6a
41°
7a
48°
8a
55°
9a
59°
10a
63°
11a
66°
12p
68°
1p
69°
2p
69°
3p
71°
4p
72°
5p
69°
6p
69°
7p
66°
8p
63°
9p
L 40°H 72°
Helena, OH
7-day forecast
  1. Today
    May 16
    Light Drizzle
    38%
    79°55°
  2. Sunday
    May 17
    Overcast
    12%
    87°61°
  3. Monday
    May 18
    Rain
    15%
    89°66°
  4. Tuesday
    May 19
    Showers
    68%
    84°68°
  5. Wednesday
    May 20
    Light Showers
    68%
    69°50°
  6. Thursday
    May 21
    Overcast
    56°45°
  7. Friday
    May 22
    Light Drizzle
    19%
    57°51°
Helena, OH
Anemometer · 24h winds · from true
NESW
From · True
SW
214° · veering 37°
Direction
SW
214°
Sustained
11
mph
Gust
20
mph
Peak 24h
30
avg 12
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
avg 12 · pk 30 @ 10:00a
−24h−18h−12h−6hnow
Light breeze veering 37° from the sw.
Helena, OH
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
988.4
-0.1 mb in 3h · rising · 29.19 inHg
Now
988.4
mb
3h
-0.1
mb
12h
+0.8
mb
24h
+0.6
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 986990
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Helena, OH
Air quality
47
AQI
Good
PM 2.5
2.8 μg/m³
PM 10
3.1 μg/m³
NO₂
7.0 μg/m³
Ozone
73.0 μg/m³
UV Index
0.0 Low
Helena, OH
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
9:43 AM
Sunrise
6:13 AM
Daylight
14h 32m
Sunset
8:45 PM
Civil dusk
1:18 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Helena, OH
The moon
New Moon
0% illuminated
Moonrise
10:16 AM
Moonset
1:15 AM
In sign
♊︎ Gemini
Helena, OH
Microseason · 28 of 72
May 16–20

Roses open along the stoops

plant
Jan 137% of the yearDec 31

Read this microseason across nine climate regions →

Helena at a glance

  • Today vs. normal: 69°F — typical for the season
  • Last frost: April 24 (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

Warm-season window is open

As of May 17, the last spring frost has passed for most years. Transplant tomatoes, peppers, eggplants, basil, and cucurbits (cucumbers, squash, melons) now. Direct-sow beans and corn into warm soil.

ZIP codes in Helena

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.