US National Weather Service Des Moines Iowa

US National Weather Service Des Moines Iowa Official page for the National Weather Service Des Moines. Details: weather.gov/facebook
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We have several rounds of thunderstorms entering the forecast starting late tonight and continuing through Friday. The i...
06/03/2026

We have several rounds of thunderstorms entering the forecast starting late tonight and continuing through Friday. The initial activity will begin over northwest Iowa tonight with a low severe risk, before expanding into western and northern Iowa throughout Thursday, where we have a Marginal Severe Risk (Level 1 of 5) for isolated strong storms capable of producing damaging winds and hail. By Friday, thunderstorm chances become more widespread across the entire state, elevated to a Slight Severe Risk (Level 2 of 5) as ingredients fall into place for stronger storm development. Any storm over the next few days will have plenty of moisture to work with, so isolated localized flash flooding will be possible due to locally heavy rainfall.

Here are the May weather summaries for Des Moines and Waterloo. The average temperature was a little above normal at the...
06/02/2026

Here are the May weather summaries for Des Moines and Waterloo. The average temperature was a little above normal at the former and below at the latter, but precipitation was well below normal at both sites.

Several rounds of thunderstorms are in the forecast coming up! Storm chances will begin over northwest Iowa Wednesday ni...
06/02/2026

Several rounds of thunderstorms are in the forecast coming up! Storm chances will begin over northwest Iowa Wednesday night and slowly progress throughout the rest of the state on Thursday and Friday. Isolated severe storms are possible in the northwestern half of the state on Thursday, and Friday is being monitored for additional severe potential. Thunderstorms each day will be scattered in nature and not a complete washout, but make sure to stay weather aware as timing and location details become more clear!

High pressure begins to build in today, keeping the area dry and mostly cloud-free! Highs will climb into the upper 70s ...
06/02/2026

High pressure begins to build in today, keeping the area dry and mostly cloud-free! Highs will climb into the upper 70s to lower 80s. Dew points will be in the 40’s and 50’s across the state, leading the way to a very refreshing day! Winds will be light out of the SE at 5–15 mph. Clouds are expected to increase on Wednesday, with winds picking up out of the south at 10–15 mph and gusts reaching up to 20 mph. Rain and thunderstorm chances return during the latter half of the week and could carry over into the weekend.

Western Iowa could see a few isolated thunderstorms this afternoon, but the rest of the state will remain dry. While we ...
06/01/2026

Western Iowa could see a few isolated thunderstorms this afternoon, but the rest of the state will remain dry. While we don’t expect much severe weather, any storms that form could produce small hail, gusty winds, and heavy rain! Make sure to stay weather aware if you have any outdoor activities planned for this afternoon and early evening!

Here are our 72-hour (3-day) Multi-Radar, Multi-Sensor (MRMS) precipitation estimates ending at 12Z (7 am) today, or fro...
06/01/2026

Here are our 72-hour (3-day) Multi-Radar, Multi-Sensor (MRMS) precipitation estimates ending at 12Z (7 am) today, or from 12Z Friday - 12Z today. The heaviest rain fell across far western Iowa. Amounts as high as 3.5-4.0+ inches fell across the far southwest. Nearly all of the heaviest rain fell west of the black line extending from northwest into south central Iowa, which shows the separation between the Mississippi and Missouri River drainages.

Scattered showers are ongoing across northern Iowa and moving to the northeast. Tonight, scattered thunderstorms are pos...
05/31/2026

Scattered showers are ongoing across northern Iowa and moving to the northeast. Tonight, scattered thunderstorms are possible mainly after 7PM. While widespread severe weather is not expected, there is a chance that a few storms could become severe, bringing gusty winds, hail, and locally heavy rainfall. This threat is contingent on whether storms can develop. There are additional thunderstorm chances tomorrow evening, but widespread severe weather is not expected tomorrow.

Central Iowa will see a few scattered showers and storms kick off Sunday morning. While these storms are expected to rem...
05/31/2026

Central Iowa will see a few scattered showers and storms kick off Sunday morning. While these storms are expected to remain below severe limits, they could drop some heavy downpours before tapering off toward the afternoon. Expect mostly cloudy skies for the bulk of the day with only brief peeks of sunshine. A slim chance for redevelopment returns this evening; if any storms manage to form, they could bring isolated hail, gusty winds and isolated heavy rainfall.

Scattered showers will continue throughout the afternoon while highs are expected to climb into the mid 70’s to lower 80...
05/30/2026

Scattered showers will continue throughout the afternoon while highs are expected to climb into the mid 70’s to lower 80’s under mostly cloudy skies. A few rumbles of thunder and heavy rain can't be ruled out with these storms. Overnight, more widespread thunderstorms return to the area. The severe weather threat is low, however, isolated flash flooding is possible with any storms that develop ahead of the main line.

Sunday and Monday afternoons and evenings will have the potential of a few severe storms with the main hazards being lar...
05/30/2026

Sunday and Monday afternoons and evenings will have the potential of a few severe storms with the main hazards being large hail, damaging winds, and locally heavy rainfall.

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Johnston, IA
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