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Clinton, IA Weather Forecast

Clinton County, Iowa

7-day view
Conditions now · Thu, 2:30 AM CDT
63°FDewpoint 54°FPartly cloudy

Measured at KCWI · Clinton Muni, IA · airport · 4.7 mi away · 10 minutes ago

Clinton, IA at Thu, 2:30 AM CDT: 63°F and partly cloudy, measured at KCWI (Clinton Muni, IA) 4.7 mi away, 10 minutes ago. Rest of today: high 67°F, low 49°F, 37% chance of rain. No active National Weather Service alerts for this location.

Current radarNational Weather Service radar · alerts refresh every minuteOpen live map →
Rain: light → heavyRadar mosaic © Iowa Environmental Mesonet / NWS · Basemap © OpenStreetMap contributors, © Protomaps
Active none for this pointClick to frame

No active alerts for this location.

Most serious first · click a row to find it on the map
What is happeningWritten from the numbers on this page

Dry for the moment, with rain moving in overnight

It is 64° with a dew point of 50°, which is dry for this time of year. The sky is mostly cloudy.

Pressure is easing down, 0.03 inHg over the last hour. The wind turns to the north-northwest around 9 AM. The first rain arrives between 4 AM and 5 AM. That leaves a usable window outdoors until about 4 AM, and it closes quickly after that.

Hour by hour
2 AMPartly cloudy63°F16%
3 AMMostly cloudy63°F24%
4 AMScattered rain61°F29%
5 AMScattered rain61°F37%
6 AMMostly cloudy60°F16%
7 AMMostly cloudy60°F8%
8 AMMostly cloudy60°F3%
9 AMMostly cloudy61°F2%
10 AMMostly cloudy62°F0%
11 AMPartly cloudy64°F0%
12 PMMostly sunny65°F0%
1 PMClear66°F0%

Next 36 hours

One wet spell, dry either side of it

The wet part of the window runs from about 4 AM to 6 AM, 2 hours of it, with the highest chance near 5 AM. Total accumulation over the window comes to about 0.09 in.

It tapers off after 6 AM. Pressure rises 0.06 inHg behind it, which is the drier air arriving. The overnight low settles near 54°. Tomorrow reaches 60°, 7° cooler than today.

Seven-day outlook

40–69°F across the week
TodayOct 29Scattered rain · 37% chance of rain49°F / 67°F
FriOct 30Scattered rain · 31% chance of rain43°F / 61°F
SatOct 31Rain likely · 80% chance of rain51°F / 64°F
SunNov 1Mostly cloudy · 12% chance of rain52°F / 68°F
MonNov 2Scattered rain · 50% chance of rain54°F / 68°F
TueNov 3Rain likely · 60% chance of rain58°F / 69°F
WedNov 4Scattered rain · 52% chance of rain53°F / 65°F
ThuNov 5Scattered rain · 27% chance of rain48°F / 61°F
FriNov 6Partly cloudy · 19% chance of rain43°F / 56°F
SatNov 7Partly cloudy · 6% chance of rain41°F / 58°F
SunNov 8Partly cloudy · 13% chance of rain40°F / 59°F

The week runs between 43° and 69°, with Tuesday the warmest day of it. There is no real trend across it: one day looks much like the next. Saturday is the wettest day, peaking near 80%.

Forecasts come from the National Weather Service's own computer models, and current conditions from the nearest reporting weather station. Both are served through the weather API. A forecast is guidance, not a warning, and anything the Weather Service has actually issued is on the live map.

The written summaries on this page are generated from the forecast data above, not by a meteorologist. Each sentence is a reading of the same numbers you can see, and no forecaster has reviewed them.

About the Clinton forecast

Clinton sits at 41.8424°N, 90.2428°W in Clinton County, Iowa. The forecast above is drawn for that point from the National Weather Service's own computer models: a seven-day outlook, and a finer-grained one covering the next eighteen hours where it reaches, and the radar and alert panels show what the Weather Service has out over the area right now.

County
Clinton County
Coordinates
41.8424°N, 90.2428°W
Population
24,239 · 2023 estimate
Land area
35.6 sq mi

Place data from the US Census Bureau. Coordinates are the Census internal point for Clinton, and the forecast is for that location, not for every address inside the city limits, and a large city can have real weather differences from one side to the other.

How well can the network see Clinton?

The nearest Doppler radar is KDVN (Davenport, IA), 24 miles to the SW. A WSR-88D's lowest routine scan sits half a degree above horizontal, and the earth curves away beneath it, so by the time that beam reaches Clinton its center is about 1,400 ft above ground. That is about as close as radar coverage gets in the United States: the lowest scan is still near the ground when it reaches Clinton, so low-level rotation and the leading edge of a gust front show up on it. Clinton is closer to its radar than 80% of US cities.

The closest instrument actually measuring the air is KCWI · Clinton Muni on the ASOS/AWOS network, 4.7 miles away. Close enough that its readings are, for practical purposes, the conditions in town.

Beam height is the standard 4/3-earth approximation for the 0.5° scan and assumes normal refraction; it is where the center of the beam is, not its edges, and unusual temperature profiles bend it. Radar siting from the NWS WSR-88D network, station positions from the Iowa observing network as of this build.

Forecasts near Clinton

Elsewhere in Iowa

Des MoinesCedar RapidsDavenportSioux CityIowa CityAnkenyAll Iowa forecasts →

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