Weather in Potomac, Illinois
Roses open on the Piedmont edge. Day 59 of spring. Read this microseason across nine climate regions →
Potomac, IL
Sunday, May 17 at 2:40 AM
65
°
Partly Cloudy
Feels like
66°
Humidity
83%
Wind
6 mph
Sunrise
5:33 AM
Sunset
8:01 PM
Potomac, IL
Hour by hour · 24h
59°
9p
55°
10p
54°
11p
53°
12a
52°
1a
50°
2a
51°
3a
51°
4a
54°
5a
54°
10%
6a
52°
51%
7a
50°
83%
8a
51°
51%
9a
53°
14%
10a
55°
11a
57°
12p
61°
1p
63°
2p
66°
3p
69°
4p
72°
5p
72°
6p
71°
7p
67°
8p
Potomac, IL
7-day forecast
- TodayMay 16Drizzle57%76°62°
- SundayMay 17Overcast16%85°61°
- MondayMay 18Heavy Rain69%82°68°
- TuesdayMay 19Light Showers79%80°59°
- WednesdayMay 20Overcast79%66°48°
- ThursdayMay 21Overcast—64°45°
- FridayMay 22Drizzle15%58°52°
Potomac, IL
Next 24 hours · Cool now
Potomac, IL
Anemometer · 24h winds · from true
From · True
SSW
192° · veering 10°
Direction
SSW
192°
Sustained
6
mph
Gust
13
mph
Peak 24h
32
avg 9
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
Potomac, IL
Air quality
44
AQI
Good
- PM 2.5
- 6.7 μg/m³
- PM 10
- 7.6 μg/m³
- NO₂
- 4.8 μg/m³
- Ozone
- 80.0 μg/m³
- UV Index
- 0.0 Low
Potomac, IL
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
10:04 AM
Sunrise
5:33 AM
Daylight
14h 28m
Sunset
8:01 PM
Civil dusk
1:33 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Potomac, IL
The moon
New Moon
0% illuminated
- Moonrise
- 10:39 AM
- Moonset
- 1:30 AM
- In sign
- ♊︎ Gemini
Potomac, IL
Microseason · 28 of 72
May 16–20
Roses open on the Piedmont edge
insect
Potomac at a glance
- Today vs. normal: 6°F below the seasonal normal for this latitude
- Last frost: April 18 (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.