Weather in Rock Falls, Illinois
Roses open along the stoops. Day 59 of spring. Read this microseason across nine climate regions →
Rock Falls, IL
Sunday, May 17 at 5:57 AM
70
°
Overcast
Feels like
73°
Humidity
80%
Wind
3 mph
Sunrise
5:36 AM
Sunset
8:13 PM
Rock Falls, IL
Hour by hour · 24h
61°
23%
12a
61°
17%
1a
61°
2a
61°
10%
3a
62°
14%
4a
61°
13%
5a
58°
6a
58°
7a
59°
8a
63°
9a
65°
10a
69°
11a
72°
12p
75°
1p
79°
2p
80°
3p
82°
4p
81°
5p
80°
6p
79°
7p
76°
8p
74°
9p
73°
10p
73°
11p
Rock Falls, IL
7-day forecast
- TodayMay 17Heavy Drizzle27%86°65°
- MondayMay 18Light Rain73%82°68°
- TuesdayMay 19Showers67%71°50°
- WednesdayMay 20Overcast—62°44°
- ThursdayMay 21Overcast—68°43°
- FridayMay 22Drizzle11%61°49°
- SaturdayMay 23Light Drizzle11%60°47°
Rock Falls, IL
Next 24 hours · Cool now
Rock Falls, IL
Anemometer · 24h winds · from true
From · True
ESE
122° · veering 25°
Direction
ESE
122°
Sustained
3
mph
Gust
5
mph
Peak 24h
20
avg 6
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
−24h−18h−12h−6hnow
Rock Falls, IL
Air quality
40
AQI
Good
- PM 2.5
- 5.5 μg/m³
- PM 10
- 6.8 μg/m³
- NO₂
- 8.1 μg/m³
- Ozone
- 60.0 μg/m³
- UV Index
- 0.0 Low
Rock Falls, IL
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
10:07 AM
Sunrise
5:36 AM
Daylight
14h 37m
Sunset
8:13 PM
Civil dusk
1:45 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Rock Falls, IL
The moon
New Moon
0% illuminated
- Moonrise
- 10:41 AM
- Moonset
- 1:44 AM
- In sign
- ♊︎ Gemini
Rock Falls, IL
Microseason · 28 of 72
May 16–20
Roses open along the stoops
plant
Rock Falls at a glance
- Today vs. normal: 70°F — typical for the season
- Last frost: April 27 (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.