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

Weather in Olmsted, Illinois

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

Olmsted, IL
Sunday, May 17 at 5:01 AM
72
°
Clear
Feels like
77°
Humidity
85%
Wind
6 mph
Sunrise
5:45 AM
Sunset
7:59 PM
Olmsted, IL
Hour by hour · 24h
57°
12a
56°
1a
55°
2a
54°
3a
54°
4a
55°
5a
55°
6a
58°
7a
62°
8a
67°
9a
70°
10a
73°
11a
77°
12p
78°
1p
81°
2p
81°
3p
82°
4p
81°
5p
79°
6p
78°
7p
76°
8p
75°
9p
75°
10p
74°
11p
L 54°H 82°
Olmsted, IL
7-day forecast
  1. Today
    May 17
    Mostly Clear
    87°66°
  2. Monday
    May 18
    Heavy Drizzle
    43%
    86°70°
  3. Tuesday
    May 19
    Showers
    74%
    88°65°
  4. Wednesday
    May 20
    Drizzle
    74%
    69°61°
  5. Thursday
    May 21
    Rain
    26%
    61°58°
  6. Friday
    May 22
    Light Showers
    38%
    78°61°
  7. Saturday
    May 23
    Drizzle
    34%
    81°65°
Olmsted, IL
Anemometer · 24h winds · from true
NESW
From · True
SSE
160° · backing 28°
Direction
SSE
160°
Sustained
6
mph
Gust
15
mph
Peak 24h
24
avg 8
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 8 · pk 24 @ 4:00p
−24h−18h−12h−6hnow
Light breeze backing 28° from the sse.
Olmsted, IL
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
999.4
-0.5 mb in 3h · steady · 29.51 inHg
Now
999.4
mb
3h
-0.5
mb
12h
-1.2
mb
24h
-0.8
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 9991002
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Olmsted, IL
Air quality
49
AQI
Good
PM 2.5
4.6 μg/m³
PM 10
4.9 μg/m³
NO₂
3.5 μg/m³
Ozone
91.0 μg/m³
UV Index
0.0 Low
Olmsted, IL
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
10:19 AM
Sunrise
5:45 AM
Daylight
14h 14m
Sunset
7:59 PM
Civil dusk
1:28 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Olmsted, IL
The moon
New Moon
0% illuminated
Moonrise
10:55 AM
Moonset
1:25 AM
In sign
♊︎ Gemini
Olmsted, 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 →

Olmsted at a glance

  • Today vs. normal: 72°F — typical for the season
  • Last frost: March 30 (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 Olmsted

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.