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

Merriam, Indiana Weather

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

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

Merriam, IN
Saturday, July 4 at 4:20 PM
86
°
Clear
Feels like
94°
Humidity
55%
Wind
5 mph
Sunrise
2:14 AM
Sunset
5:18 PM
Merriam, IN
Hour by hour · 24h
24-Hour ForecastMerriam, IN: 24-hour forecast. Temperatures range from 69 to 86 degrees Fahrenheit with a 42% chance of precipitation at 8 PM.
L 69°H 86°
Merriam, IN
7-day forecast
  1. Today
    Jul 4
    Rain
    48%
    0.27″
    86°70°
  2. Sunday
    Jul 5
    Showers
    51%
    0.29″
    80°69°-6°
  3. Monday
    Jul 6
    Drizzle
    24%
    0.01″
    73°62°-7°
  4. Tuesday
    Jul 7
    Overcast
    81°60°+8°
  5. Wednesday
    Jul 8
    Overcast
    80°60°-1°
  6. Thursday
    Jul 9
    Thunderstorm
    47%
    0.07″
    79°68°-1°
  7. Friday
    Jul 10
    Drizzle
    43%
    0.01″
    80°68°+1°
Merriam, IN
Anemometer · 24h winds · from true
NESW
From · True
W
276° · veering 35°
Direction
W
276°
Sustained
5
mph
Gust
8
mph
Peak 24h
21
avg 6
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 6 · pk 21 @ 6:00p
0102030MPHB1B2B3B4B5B6B7-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 285SUSTGUST
−24h−18h−12h−6hnow
A whisper of wind — leaves barely shift on the trees.
Merriam, IN
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
982.0
-0.6 mb in 3h · falling · 29.00 inHg
Now
982.0
mb
3h
-0.6
mb
12h
0.0
mb
24h
-2.0
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 981984
975980985990-21h-18h-15h-12h-9h-6h-3h-24hNOW984.1981.1982.1
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Merriam, IN
Air quality
46
AQI
Good
+10 in 6h

AQI 46 (Good), driven by Ozone. AQI up 10 over the last 6 hours (gradual rise). Ozone at AQI 53 — 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
9.2μg/m³
PM 10Good
10μg/m³
NO₂Good
1μg/m³
OzoneDRIVERUnhealthy SG
109μg/m³
UV IndexModerate
3.2

What's driving it

Ozone × UV × Sky

Ozone at AQI 53 — peak already passed at 1 PM under clear skies. Levels should ease through evening.

Present
AQI 53
UV peak
2.9 at earlier today
Sky at peak
clear
Projected peak
AQI 53

PM × Wind × Precip

PM2.5 at 9.2 µg/m³ (AQI 51) with a 0.90 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.

PM2.5/PM10
0.90
Wind
light
Recent rain
0h in last 6h
Pattern
stagnant smoke
Merriam, IN
Sky cover · visibility · 24h
Cloud cover
11%
CLEAR
100%0%−24h−18h−12h−6hnow

Visibility
68.5mi
UNLIMITED
98 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
20:20 UTC · Merriam, 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
20:20 UTC · Merriam, IN · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Merriam, IN
Satellite · infrared · animated
Merriam, IN
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Merriam, IN
Almanac · Saturday, July 4
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
5:41 AM
Sunrise
2:14 AM
Daylight
15h 04m
Sunset
5:18 PM
Civil dusk
9:52 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
Merriam, IN
The moon
Waning Gibbous
79% illuminated
Moonrise
11:38 PM
Moonset
10:45 AM
In sign
♓︎ Pisces
Merriam, IN
Microseason
Jul 1–5

Cicadas claim the afternoon

plant
Jan 151% of the yearDec 31

Read this microseason across nine climate regions →

Merriam at a glance

  • Today vs. normal: 16°F above the seasonal normal for this latitude
  • Last frost: April 24 (climatological average for this latitude)
  • Microseason: Jul 1–5
  • Planting window: Harvest early potatoes. Begin drying onions on the surface.

16-Day Forecast — Merriam

  1. Sat87°70°48%
  2. Sun80°69°51%
  3. Mon73°62°24%
  4. Tue81°60°4%
  5. Wed80°60°3%
  6. Thu79°68°47%
  7. Fri80°68°43%
  8. Sat72°59°19%
  9. Sun73°54°11%
  10. Mon73°54°11%
  11. Tue75°53°11%
  12. Wed78°60°30%
  13. Thu80°59°28%
  14. Fri78°66°29%
  15. Sat73°68°29%
  16. Sun76°64°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 — Merriam

SPC has placed Merriam 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 Merriam

  • 46723
  • 46701

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.