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

Weather in Salem, Illinois

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

Salem, IL
Sunday, May 17 at 4:59 AM
66
°
Clear
Feels like
68°
Humidity
89%
Wind
7 mph
Sunrise
5:42 AM
Sunset
8:01 PM
Salem, IL
Hour by hour · 24h
56°
11p
56°
12a
56°
1a
56°
2a
56°
3a
55°
4a
55°
5a
56°
6a
56°
10%
7a
56°
8a
56°
15%
9a
61°
12%
10a
65°
11a
70°
12p
73°
1p
78°
2p
80°
3p
80°
4p
81°
5p
80°
6p
79°
7p
76°
8p
74°
9p
73°
10p
L 55°H 81°
Salem, IL
7-day forecast
  1. Today
    May 16
    Thunderstorm
    54%
    77°66°
  2. Sunday
    May 17
    Overcast
    —
    86°66°
  3. Monday
    May 18
    Heavy Rain
    51%
    83°69°
  4. Tuesday
    May 19
    Showers
    83%
    82°61°
  5. Wednesday
    May 20
    Light Drizzle
    80%
    67°55°
  6. Thursday
    May 21
    Light Drizzle
    13%
    65°52°
  7. Friday
    May 22
    Light Drizzle
    26%
    66°54°
Salem, IL
Next 24 hours · Cool now
HOT 90°50°70°90°12a6a12p6pnow 56°high 81°low 55°PRECIP %
Salem, IL
Anemometer · 24h winds · from true
NESW
From · True
ESE
102° · backing 148°
Direction
ESE
102°
Sustained
7
mph
Gust
9
mph
Peak 24h
17
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
avg 5 · pk 17 @ 1:00p
−24h−18h−12h−6hnow
A whisper of wind — leaves barely shift on the trees.
Salem, IL
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
992.5
+0.5 mb in 3h · rising · 29.31 inHg
Now
992.5
mb
3h
+0.5
mb
12h
-0.2
mb
24h
+0.3
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 992–996
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Salem, IL
Air quality
36
AQI
Good
PM 2.5
4.1 μg/m³
PM 10
4.7 μg/m³
NO₂
5.2 μg/m³
Ozone
79.0 μg/m³
UV Index
0.0 Low
Salem, IL
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
10:14 AM
Sunrise
5:42 AM
Daylight
14h 19m
Sunset
8:01 PM
Civil dusk
1:32 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Salem, IL
The moon
New Moon
0% illuminated
Moonrise
10:50 AM
Moonset
1:29 AM
In sign
♊︎ Gemini
Salem, 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 →

Salem at a glance

  • Today vs. normal: 7°F below the seasonal normal for this latitude
  • Last frost: April 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

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.

All cities in Illinois →

ZIP codes in Salem

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.