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

Weather in Sims, Illinois

Roses open on the Piedmont edge. Day 59 of spring. Read this microseason across nine climate regions →

Sims, IL
Sunday, May 17 at 2:36 AM
67
°
Overcast
Feels like
71°
Humidity
94%
Wind
4 mph
Sunrise
5:41 AM
Sunset
7:59 PM
Sims, IL
Hour by hour · 24h
59°
9p
56°
10p
54°
11p
53°
12a
53°
1a
52°
2a
52°
3a
53°
4a
52°
5a
53°
6a
56°
7a
58°
8a
58°
9a
62°
10a
66°
11a
71°
12p
73°
1p
77°
2p
80°
3p
81°
4p
81°
5p
80°
6p
79°
7p
75°
8p
L 52°H 81°
Sims, IL
7-day forecast
  1. Today
    May 16
    Light Rain
    50%
    83°67°
  2. Sunday
    May 17
    Overcast
    86°64°
  3. Monday
    May 18
    Showers
    65%
    84°67°
  4. Tuesday
    May 19
    Showers
    77%
    83°64°
  5. Wednesday
    May 20
    Light Drizzle
    77%
    70°57°
  6. Thursday
    May 21
    Heavy Drizzle
    15%
    65°53°
  7. Friday
    May 22
    Drizzle
    19%
    72°55°
Sims, IL
Anemometer · 24h winds · from true
NESW
From · True
E
084° · backing 71°
Direction
E
084°
Sustained
4
mph
Gust
8
mph
Peak 24h
20
avg 7
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
avg 7 · pk 20 @ 2:00p
−24h−18h−12h−6hnow
Light breeze backing 71° from the e.
Sims, IL
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
997.0
-0.7 mb in 3h · rising · 29.44 inHg
Now
997.0
mb
3h
-0.7
mb
12h
-2.1
mb
24h
+1.6
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 9951000
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Sims, IL
Air quality
44
AQI
Good
PM 2.5
3.9 μg/m³
PM 10
4.5 μg/m³
NO₂
3.6 μg/m³
Ozone
87.0 μg/m³
UV Index
0.0 Low
Sims, IL
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
10:13 AM
Sunrise
5:41 AM
Daylight
14h 18m
Sunset
7:59 PM
Civil dusk
1:30 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Sims, IL
The moon
New Moon
0% illuminated
Moonrise
10:49 AM
Moonset
1:27 AM
In sign
♊︎ Gemini
Sims, IL
Microseason · 28 of 72
May 16–20

Roses open on the Piedmont edge

insect
Jan 137% of the yearDec 31

Read this microseason across nine climate regions →

Sims at a glance

  • Today vs. normal: 6°F below the seasonal normal for this latitude
  • Last frost: April 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

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 Sims

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.