Weather in Ontario, Wisconsin
Roses Bloom Along the Shelter Rows. Day 59 of spring. Read this microseason across nine climate regions →
Ontario, WI
Sunday, May 17 at 1:46 AM
71
°
Clear
Feels like
66°
Humidity
34%
Wind
5 mph
Sunrise
5:35 AM
Sunset
8:21 PM
Ontario, WI
Hour by hour · 24h
66°
8p
63°
9p
59°
10p
60°
41%
11p
57°
32%
12a
57°
43%
1a
55°
30%
2a
55°
17%
3a
54°
4a
54°
5a
55°
6a
57°
7a
61°
8a
64°
9a
68°
10a
71°
11a
75°
12p
77°
1p
80°
2p
81°
3p
82°
4p
83°
5p
82°
6p
81°
7p
Ontario, WI
7-day forecast
- TodayMay 16Rain84%83°59°
- SundayMay 17Heavy Rain46%71°54°
- MondayMay 18Showers86%74°63°
- TuesdayMay 19Showers86%68°48°
- WednesdayMay 20Overcast—59°42°
- ThursdayMay 21Overcast—60°38°
- FridayMay 22Drizzle—60°48°
Ontario, WI
Next 24 hours · Mild now
Ontario, WI
Anemometer · 24h winds · from true
From · True
NNW
330° · veering 33°
Direction
NNW
330°
Sustained
5
mph
Gust
6
mph
Peak 24h
15
avg 5
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
Ontario, WI
Air quality
53
AQI
Moderate
- PM 2.5
- 7.1 μg/m³
- PM 10
- 9.1 μg/m³
- NO₂
- 4.7 μg/m³
- Ozone
- 87.0 μg/m³
- UV Index
- 0.0 Low
Ontario, WI
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
10:04 AM
Sunrise
5:35 AM
Daylight
14h 46m
Sunset
8:21 PM
Civil dusk
1:56 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Ontario, WI
The moon
New Moon
0% illuminated
- Moonrise
- 10:37 AM
- Moonset
- 1:57 AM
- In sign
- ♉︎ Taurus
Ontario, WI
Microseason · 28 of 72
May 16–20
Roses Bloom Along the Shelter Rows
plant
Ontario at a glance
- Today vs. normal: 3°F above the seasonal normal for this latitude
- Last frost: May 8 (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).