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

Corunna, Indiana Weather

Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →

Corunna weather forecast — hour by hour, 7-day outlook, NOAA radar

Corunna, IN
Saturday, July 4 at 6:55 PM
84
°
Clear
Feels like
91°
Humidity
62%
Wind
2 mph
Sunrise
2:12 AM
Sunset
5:17 PM
Corunna, IN
Hour by hour · 24h
24-Hour ForecastCorunna, IN: 24-hour forecast. Temperatures range from 68 to 85 degrees Fahrenheit with a 52% chance of precipitation at 2 AM.
L 68°H 85°
Corunna, IN
7-day forecast
  1. Today
    Jul 4
    Heavy Rain
    48%
    1.2″
    85°70°
  2. Sunday
    Jul 5
    Light Showers
    52%
    1.9″
    81°68°-4°
  3. Monday
    Jul 6
    Drizzle
    34%
    75°61°-6°
  4. Tuesday
    Jul 7
    Overcast
    80°60°+5°
  5. Wednesday
    Jul 8
    Overcast
    80°60°
  6. Thursday
    Jul 9
    Thunderstorm
    51%
    0.07″
    80°67°
  7. Friday
    Jul 10
    Drizzle
    51%
    0.02″
    79°67°-1°
Corunna, IN
Anemometer · 24h winds · from true
NESW
From · True
NW
315° · backing 38°
Direction
NW
315°
Sustained
2
mph
Gust
5
mph
Peak 24h
22
avg 5
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
avg 5 · pk 22 @ 7:00a
0102030MPHB1B2B3B4B5B6-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 2610SUSTGUST
−24h−18h−12h−6hnow
A whisper of wind — leaves barely shift on the trees.
Corunna, IN
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
977.7
-1.1 mb in 3h · falling · 28.87 inHg
Now
977.7
mb
3h
-1.1
mb
12h
-0.8
mb
24h
-2.5
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 978982
970975980985990-21h-18h-15h-12h-9h-6h-3h-24hNOW981.7978.6978.9
−24h−18h−12h−6hnow
Deep low still deepening — rough seas, strong wind, persistent rain.
Corunna, IN
Air quality
54
AQI
Moderate
+19 in 6h

AQI 54 (Moderate), driven by Ozone. AQI up 19 in the last 6 hours — air quality is degrading. Ozone at AQI 58 — peak already passed at 1 PM under clear skies. Levels should ease through evening.

OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.

PM 2.5Good
7.6μg/m³
PM 10Good
8μg/m³
NO₂Good
2μg/m³
OzoneDRIVERUnhealthy SG
112μg/m³
UV IndexLow
0.8

What's driving it

Ozone × UV × Sky

Ozone at AQI 58 — peak already passed at 1 PM under clear skies. Levels should ease through evening.

Present
AQI 58
UV peak
0.6 at earlier today
Sky at peak
clear
Projected peak
AQI 58

PM × Wind × Precip

PM2.5 at 7.6 µg/m³ (AQI 42) with a 0.90 fine-to-coarse ratio and 2 mph wind — combustion smoke trapped in calm air, not road dust.

PM2.5/PM10
0.90
Wind
calm
Recent rain
0h in last 6h
Pattern
stagnant smoke
Corunna, IN
Sky cover · visibility · 24h
Cloud cover
0%
CLEAR
100%0%−24h−18h−12h−6hnow

Visibility
58.9mi
UNLIMITED
61 mi0 mi−24h−18h−12h−6hnow
Earth · GOES-19 ABI
Full Disk · Visible · GeoColor
GOES-19 full disk Visible · GeoColor
True-color daytime, blue/IR sandwich at night
22:55 UTC · Corunna, IN · NOAA NESDIS / STAR · up to 10848 px
Continental US · GOES-19 ABI
CONUS Sector · Visible · GeoColor
GOES-19 CONUS Visible · GeoColor
Daytime true-color, blue-light/IR sandwich at night
22:55 UTC · Corunna, IN · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Corunna, IN
Satellite · infrared · animated
Corunna, IN
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Corunna, IN
Almanac · Saturday, July 4
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
5:39 AM
Sunrise
2:12 AM
Daylight
15h 05m
Sunset
5:17 PM
Civil dusk
9:52 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
Corunna, IN
The moon
Waning Gibbous
78% illuminated
Moonrise
11:37 PM
Moonset
10:44 AM
In sign
♓︎ Pisces
Corunna, IN
Microseason
Jul 1–5

Cicadas claim the afternoon

plant
Jan 151% of the yearDec 31

Read this microseason across nine climate regions →

Corunna at a glance

  • Today vs. normal: 14°F above the seasonal normal for this latitude
  • Last frost: April 25 (climatological average for this latitude)
  • Microseason: Jul 1–5
  • Planting window: Harvest early potatoes. Begin drying onions on the surface.

ZIP code: 46730

16-Day Forecast — Corunna

  1. Sat85°70°48%
  2. Sun81°68°52%
  3. Mon75°61°34%
  4. Tue80°60°5%
  5. Wed80°60°3%
  6. Thu80°67°51%
  7. Fri79°67°51%
  8. Sat73°60°24%
  9. Sun74°54°9%
  10. Mon72°53°9%
  11. Tue75°53°10%
  12. Wed78°60°27%
  13. Thu80°60°27%
  14. Fri80°66°35%
  15. Sat73°68°40%
  16. Sun76°63°53%

Forecast data from Open-Meteo (CC BY 4.0).

Right now in the garden

Peak growing season

As of July 4, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.

SPC Convective Outlook

Storm Prediction Center — Corunna

SPC has placed Corunna in the Marginal Risk category for severe thunderstorms today.

  • TODAYMRGLMarginal Risk
  • TOMORROWTSTMGeneral Thunderstorms
  • DAY 3TSTMGeneral Thunderstorms

Isolated severe storms possible. Limited threat for hail or damaging wind.

Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.

ZIP codes in Corunna

  • 46730

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.