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

Weather in St. John, Kansas

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

St. John, KS
Sunday, May 17 at 1:43 AM
87
°
Mostly Clear
Feels like
81°
Humidity
40%
Wind
23 mph
Sunrise
6:23 AM
Sunset
8:39 PM
St. John, KS
Hour by hour · 24h
83°
8p
82°
9p
79°
10p
78°
11p
77°
12a
77°
1a
76°
2a
75°
3a
72°
4a
65°
5a
64°
6a
64°
7a
69°
8a
75°
9a
79°
10a
84°
11a
85°
12p
89°
1p
92°
2p
95°
3p
96°
4p
99°
5p
93°
6p
89°
7p
L 64°H 99°
St. John, KS
7-day forecast
  1. Today
    May 16
    Partly Cloudy
    —
    96°64°
  2. Sunday
    May 17
    Thunderstorm
    —
    97°71°
  3. Monday
    May 18
    Thunderstorm
    62%
    99°54°
  4. Tuesday
    May 19
    Overcast
    62%
    70°44°
  5. Wednesday
    May 20
    Light Drizzle
    26%
    72°48°
  6. Thursday
    May 21
    Drizzle
    34%
    73°54°
  7. Friday
    May 22
    Showers
    29%
    74°61°
St. John, KS
Next 24 hours · Warm now
HOT 90°55°80°105°12a6a12p6pnow 83°high 99°low 64°
St. John, KS
Anemometer · 24h winds · from true
NESW
From · True
S
172° · veering 68°
Direction
S
172°
Sustained
23
mph
Gust
41
mph
Peak 24h
52
avg 15
Beaufort · 5 · FRESH 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 15 · pk 52 @ 12:00a
−24h−18h−12h−6hnow
Sustained 23 mph with gusts pulsing to 41 — flags snap, branches bend.
St. John, KS
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
934.8
-0.6 mb in 3h · falling rapidly · 27.60 inHg
Now
934.8
mb
3h
-0.6
mb
12h
-4.5
mb
24h
-0.2
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 932–940
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
St. John, KS
Air quality
50
AQI
Good
PM 2.5
3.6 μg/m³
PM 10
5.1 μg/m³
NO₂
1.9 μg/m³
Ozone
97.0 μg/m³
UV Index
0.1 Low
St. John, KS
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
10:55 AM
Sunrise
6:23 AM
Daylight
14h 16m
Sunset
8:39 PM
Civil dusk
2:09 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
St. John, KS
The moon
New Moon
0% illuminated
Moonrise
11:33 AM
Moonset
2:09 AM
In sign
♉︎ Taurus
St. John, KS
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 →

St. John at a glance

  • Today vs. normal: 13°F above the seasonal normal for this latitude
  • Last frost: April 4 (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 Kansas →

ZIP codes in St. John

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.