Muscatine weather in August

In August, Muscatine sees average daytime highs of 82°F and overnight lows near 64°F, with 3.6 in of rain across 9.2 wet days and about 13.7 hours of daylight. It is the 2nd-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 82°F through the month. The sky is clear or mostly clear about 41% of the time in August, and the air most often feels muggy.

Daylight stretches from about 14 h 18 min at the start of August to 13 hours by month's end. Set against the rest of the year, August is Muscatine's 2nd-clearest and 12th-windiest month. For the whole year in context, see Muscatine's year-round climate.

Daytime high
82°
2nd warmest
Overnight low
64°
11th coldest
Rainfall
3.6 in
9.2 wet days
Daylight
13 h 42 min
5:18 AM – 6:59 PM
Cloud cover
50%
2nd clearest
Wind
6 mph
12th windiest
Solar energy
5.59 kWh/m²
Travel score
6.6
out of 10

Muscatine is city in and county seat of Muscatine County, Iowa, United States.

Density
509/km²
people per km²
Founded
1839

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 82°F through the month.

A typical August day in Muscatine reaches about 82°F in the afternoon and slips back to 64°F overnight — a 18°F spread between the day's warmth and the night's chill. On most days the high lands between 74°F and 89°F. Set against its neighbours, August runs about 2°F cooler than July and about 6°F warmer than September.

50°60°70°80°90°151015202531
Avg high (°F)Avg low (°F)
18366
28366
38365
48365
58265
68265
78265
88265
98265
108265
118264
128264
138264
148264
158264
168264
178264
188264
198264
208164
218164
228164
238164
248163
258163
268163
278163
288163
298162
308162
318062

How August really feels in Muscatine

Once humidity and wind are folded in, August averages 0 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F
0
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

August sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Muscatine weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan30° / 15°1.77.15.19.30.0
Feb35° / 19°1.96.6410.30.0
Mar48° / 30°2.89.22.211.71.7
Apr60° / 42°4.111.80.713.14.6
May71° / 53°4.613.2014.36.1
Jun80° / 63°4.712014.96.2
Jul83° / 67°3.49.4014.75.9
Aug82° / 64°3.69.2013.76.6
Sep75° / 56°3.68.4012.37.2
Oct62° / 44°2.88.40.310.95.6
Nov48° / 32°2.47.51.29.71.8
Dec35° / 21°2.06.93.99.10.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 41% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 18% of August, with mostly cloudy or overcast conditions the remaining 41%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16139
26139
36040
46040
56040
66040
76040
85842
95842
105842
115842
125842
135842
145743
155842
165842
175842
185842
195842
205842
215842
225941
235941
245941
256040
266040
276040
286139
296139
306238
316238

Chance of precipitation in August

Any precipitation

Muscatine gets around 3.6 in of rain over 9.2 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 29% and peaks near 31% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
128
228
328
429
529
629
729
830
930
1030
1130
1231
1331
1431
1531
1631
1731
1831
1931
2031
2130
2230
2330
2429
2529
2628
2728
2828
2927
3027
3127

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

Most of August feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, August lands in the muggy band about 26% of days. Sticky, muggy-or-worse air turns up on roughly 42% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
16212725192
27212725192
37212725192
47202825182
58202825182
68202825172
79192925172
89192925161
910192925161
1010192925151
1110192926151
1211192826151
1311202826151
1411202826141
1511202727141
1611202727141
1711202727141
1811202627141
1911212628141
2011212528141
2111212528150
2211212428150
2311222428150
2411222328150
2512232328150
2612232327140
2713232227140
2814242227140
2915242226130
3016242225120
3118242225110

Wind in August

Winds average 6 mph in August, the calmest month.

Across August, daily wind ranges from about 6 mph on the calmest days to 7 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 h 18 min at the start of August to 13 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 78 minutes over August. Sunrise moves from 5:03 AM to 5:34 AM, and sunset from 7:18 PM to 6:35 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.35:037:18
214.25:047:17
314.25:057:16
414.15:067:14
514.15:077:13
614.15:087:12
714.05:097:11
814.05:107:10
914.05:117:08
1013.95:127:07
1113.95:137:06
1213.85:147:04
1313.85:157:03
1413.85:167:01
1513.75:177:00
1613.75:186:59
1713.65:196:57
1813.65:206:56
1913.65:216:54
2013.55:226:53
2113.55:236:51
2213.45:246:49
2313.45:256:48
2413.35:266:46
2513.35:276:45
2613.25:286:43
2713.25:296:41
2813.25:316:40
2913.15:326:38
3013.15:336:36
3113.05:346:35

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.59 kWh/m².

For context, solar energy here swings from a low near 1.72 kWh/m² to a high of 6.39 kWh/m² in July across the year — August's 5.59 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.1Intense
26.1Intense
36.0Intense
46.0Bright
56.0Bright
65.9Bright
75.9Bright
85.8Bright
95.8Bright
105.8Bright
115.7Bright
125.7Bright
135.7Bright
145.6Bright
155.6Bright
165.6Bright
175.5Bright
185.5Bright
195.5Bright
205.5Bright
215.4Bright
225.4Bright
235.4Bright
245.3Bright
255.3Bright
265.3Bright
275.3Bright
285.2Bright
295.2Bright
305.2Bright
315.2Bright
Planning a trip in August

Is August a good time to visit Muscatine?

Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

6.6
Sightseeing
2nd-best month of the year
7.0
Beach & pool
2nd-best month of the year

August is a reasonable time to visit Muscatine for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Muscatine in August

From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In August, Muscatine sees daytime highs around 82°F and nights near 64°F. Pack light clothes. Worth having: rain gear and sun protection. About 9 days see rain.

light clothesrain gearsun protection

UV index in Muscatine in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Muscatine peaks around June 18 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateLowJun 18UV 9Dec 20UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar4Moderate
Apr6High
May8Very high
Jun9Very high
Jul8Very high
Aug8Very high
Sep6High
Oct3Moderate
Nov3Moderate
Dec2Low

Air quality in Muscatine in August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.

Air quality in Muscatine is worst in July — around 16 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (October, 7 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodModerateGoodJul 1916 µg/m³Oct 228 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb13Moderate
Mar13Moderate
Apr11Good
May13Moderate
Jun13Moderate
Jul16Moderate
Aug15Moderate
Sep11Good
Oct7Good
Nov8Good
Dec9Good
Location & terrain

Where is Muscatine?

Muscatine sits at 41.4°N, 91.0°W, 581 ft above sea level, in United States. The nearest listed city is Rock Island, 25 mi away.

Topography around Muscatine

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Muscatine.

Within 2 miles, the terrain around Muscatine has only modest variations in elevation — a maximum elevation change of 210 ft around an average of 597 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 305 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 627 ft.

The land around Muscatine is covered by trees (31%) and artificial surfaces (21%) within 2 miles, cropland (52%) and trees (25%) within 10 miles, and cropland (71%) within 50 miles.

2 miles
210 ft
10 miles
305 ft
50 miles
627 ft
treesgrasslandcroplandartificial surfaceswater
August weather nearby: Rock Island 25 mi · Davenport 25 mi · Moline 28 mi · Bettendorf 28 mi · Iowa City 30 mi · East Moline 32 mi · Coralville 33 mi · North Liberty 37 mi

United States travel facts

Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 100% of US
price level, 2025
GDP per capita
$90,027
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
5.8
per 100k, 2023
Road deaths
12.7
per 100k/yr, 2019
Income group
High
World Bank
Religion
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Muscatine (41.4245°, -91.0432°, elevation 581 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).