Weather World

Delaware, IA Weather Forecast

Feedback E-mail the Weather

Quick Weather Clicks

Current Conditions

Settings

Overcast

59°F

Updated	12:45 am
Feels Like	47°F
Humidity	87%
Wind	NE 8 mph
Barometer	30.1 in
Dew Point	55°F

Overcast

15°C

Updated	12:45 am
Feels Like	9°C
Humidity	87%
Wind	NE 13 km/h
Barometer	101.9 kPa
Dew Point	13°C

WX Settings

°F °C°F °C

Text IconsText Icons

Sun & Moon

Converter

Cloud Cover	100%
uv UV Index	1
Sunrise	6:52 AM
Sunset	7:05 PM
Moonrise	4:51 PM
Moonset	1:15 AM

Civil Twilight
6:21 AM to 6:49 AM
7:04 PM to 7:32 PM
Delaware IA Weather - Waxing Gibbous Moon

Waxing Gibbous Moon

Delaware Weather Forecast

REST OF TONIGHT	MONDAY	MONDAY NIGHT	TUESDAY	TUESDAY NIGHT	WEDNESDAY	WEDNESDAY NIGHT	THURSDAY	FRIDAY	SATURDAY	SATURDAY NIGHT	SUNDAY

Chance of Showers	Chance of Showers	Chance of Showers	Chance of Showers	Partly Cloudy	Sunny	Partly Cloudy	Mostly Cloudy	Mostly Cloudy	Chance of Showers	Mostly Cloudy	Mostly Cloudy
Lo: 55°FLo: 13°C	Hi: 61°FHi: 16°C	Lo: 50°FLo: 10°C	Hi: 61°FHi: 16°C	Lo: 45°FLo: 7°C	Hi: 65°FHi: 18°C	Lo: 49°FLo: 9°C	Hi: 65°FHi: 18°C Lo: 51°FLo: 11°C	Hi: 65°FHi: 18°C Lo: 51°FLo: 11°C	Hi: 65°FHi: 18°C	Hi: 69°FHi: 21°C Lo: 55°FLo: 13°C	Hi: 69°FHi: 21°C Lo: 55°FLo: 13°C
POP: 20%	POP: 50%	POP: 50%	POP: 30%						POP: 30%

POP = Probability of Precipitation.

Weather Outlook Updated: 1211 AM CDT Mon Sep 21 2026 Delaware, IA Weather - WeatherWorld.com

Trending Headlines

Delaware Radar Loop

Use the map search tool if you want to place a location marker on the radar map...

Delaware Weather Map

Comprehensive Weather Maps

Delaware Quick Facts

National Two Day Weather Forecast

E-mail the Delaware Weather Forecast

Voice your opinion or tell us about page issues...

Delaware Forecast Discussion

Meteorlogic Glosserator
Instant definitions for any meteorological term.

Issued: 940 PM CDT Sun Sep 20 2026

Key Messages

An upper low will continue to spin near our local area through Tuesday morning, leading to occasional showers and continued cool and cloudy conditions.
Expectations for several beautiful early Fall days are growing for mid week, with highs in the 60s and lows in the 40s/50s.

Aviation

/00Z TAFS THROUGH 00Z TUESDAY/... Issued at 715 PM CDT Sun Sep 20 2026

Widespread low stratus will continue over eastern Iowa and northwest Illinois, resulting in periods of MVFR/IFR ceilings. The most like...

Sponsored Links

Weather 101: Term of the Day

Cap

(also called "Lid") A layer of relatively warm air aloft, usually several thousand feet above the ground, which suppresses or delays the development of thunderstorms. Air parcels rising into this layer become cooler than the surrounding air, which inhibits their ability to rise further and produce thunderstorms. As such, the cap often prevents or delays thunderstorm development even in the presence of extreme instability. However, if the cap is removed or weakened, then explosive thunderstorm development can occur. The cap is an important ingredient in most severe thunderstorm episodes, as it serves to separate warm, moist air below and cooler, drier air above. With the cap in place, air below it can continue to warm and/or moisten, thus increasing the amount of potential instability. Or, air above it can cool, which also increases potential instability. But without a cap, either process (warming/moistening at low levels or cooling aloft) results in a faster release of available instability - often before instability levels become large enough to support severe weather development.