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Corvallis weather alerts

4 active alerts for Corvallis, Oregon right now: 2 Freeze Watches and 2 Frost Advisories.

17 in the last 30 days 18 in 12 months (since Aug 30) most common: Frost Advisory Get alerts on your phone →

Active alerts for Benton County

NWS issues alerts by county; Corvallis is in Benton County. Refreshed every few minutes; times in PDT.

Severe Future Starts in 19 hr

Freeze Watch

Issued Wed, Oct 21, 6:55 PM PDT by NWS Portland OR Until Fri, Oct 23, 9:00 AM PDT (in 1 day)

Area: North Oregon Coast Range Lowlands; Benton County Lowlands; Linn County Lowlands; Lane County Lowlands

* WHAT...Sub-freezing temperatures as low as 31 degrees possible. * WHERE...North Oregon Coast Range Lowlands, Benton County Lowlands, Lane County Lowlands, and Linn County Lowlands Counties. * WHEN...For the first Freeze Watch, from 11 PM Thursday through 9 AM PDT Friday. For the second Freeze Watch, from 11 PM Friday through 9 AM PDT Saturday. * IMPACTS...

What it means: Sub-freezing temperatures are possible. Be ready to protect plants and pipes.

Full alert with map and forecast →
Severe Future Starts in 2 day

Freeze Watch

Issued Wed, Oct 21, 6:55 PM PDT by NWS Portland OR Until Sat, Oct 24, 9:00 AM PDT (in 2 days)

Area: North Oregon Coast Range Lowlands; Benton County Lowlands; Linn County Lowlands; Lane County Lowlands

* WHAT...Sub-freezing temperatures as low as 31 degrees possible. * WHERE...North Oregon Coast Range Lowlands, Benton County Lowlands, Lane County Lowlands, and Linn County Lowlands Counties. * WHEN...For the first Freeze Watch, from 11 PM Thursday through 9 AM PDT Friday. For the second Freeze Watch, from 11 PM Friday through 9 AM PDT Saturday. * IMPACTS...

What it means: Sub-freezing temperatures are possible. Be ready to protect plants and pipes.

Full alert with map and forecast →
Minor Expected Starts in 19 hr

Frost Advisory

Issued Wed, Oct 21, 6:55 PM PDT by NWS Portland OR Until Fri, Oct 23, 9:00 AM PDT (in 1 day)

Area: Central Oregon Coast Range Lowlands; Central Oregon Coast Range; Tualatin Valley; Willapa Hills; Cowlitz County Lowlands; North Clark County Lowlands; South Washington Cascade Foothills

* WHAT...Temperatures as low as 33 to 36 degrees will result in frost formation. * WHERE...In Oregon, Tualatin Valley, Central Oregon Coast Range, and Central Oregon Coast Range Lowlands Counties. In Washington, Cowlitz County Lowlands, North Clark County Lowlands, South Washington Cascade Foothills, and Willapa Hills Counties. * WHEN...For the first Fros...

What it means: Frost is expected on the ground. Cover sensitive plants overnight.

Full alert with map and forecast →
Minor Expected Starts in 2 day

Frost Advisory

Issued Wed, Oct 21, 6:55 PM PDT by NWS Portland OR Until Sat, Oct 24, 9:00 AM PDT (in 2 days)

Area: Central Oregon Coast Range Lowlands; Central Oregon Coast Range; Tualatin Valley; Willapa Hills; Cowlitz County Lowlands; North Clark County Lowlands; South Washington Cascade Foothills

* WHAT...Temperatures as low as 33 to 36 degrees will result in frost formation. * WHERE...In Oregon, Tualatin Valley, Central Oregon Coast Range, and Central Oregon Coast Range Lowlands Counties. In Washington, Cowlitz County Lowlands, North Clark County Lowlands, South Washington Cascade Foothills, and Willapa Hills Counties. * WHEN...For the first Fros...

What it means: Frost is expected on the ground. Cover sensitive plants overnight.

Full alert with map and forecast →

Get Corvallis alerts on your phone before you think to look them up

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Where

Benton County on the map

Alert polygons are NWS's own. Forecast Bar's radar shows the same warnings over live precipitation, with future radar and lightning. See the radar.

Last 30 days

Recent alerts for Benton County

AlertIssuedEndedIssued by
Frost Advisory Oct 18, 8:55 AM Oct 18, 9:00 AM Portland OR
Frost Advisory Oct 18, 5:27 AM Oct 18, 9:00 AM Portland OR
Frost Advisory Oct 17, 5:21 PM Oct 18, 9:00 AM Portland OR
Frost Advisory Oct 13, 7:48 AM Oct 13, 8:00 AM Portland OR
Frost Advisory Oct 13, 4:39 AM Oct 13, 8:00 AM Portland OR
Frost Advisory Oct 12, 10:58 PM Oct 13, 8:00 AM Portland OR
Frost Advisory Oct 12, 10:21 AM Oct 13, 8:00 AM Portland OR
Frost Advisory Oct 12, 10:21 AM Oct 13, 8:00 AM Portland OR
Frost Advisory Oct 12, 10:05 AM Oct 13, 8:00 AM Portland OR
Frost Advisory Oct 12, 10:02 AM Oct 13, 2:00 AM Portland OR
Frost Advisory Oct 11, 10:39 PM Oct 12, 8:00 AM Portland OR
Frost Advisory Oct 11, 10:00 AM Oct 12, 8:00 AM Portland OR
Special Weather Statement Oct 5, 4:45 AM Oct 5, 10:00 AM Portland OR

Pattern

What Benton County gets alerted for

Every alert that named Benton County in the last 12 months, by type. Records begin August 30, 2026, so this fills in over the year.

Frost Advisory
14
Freeze Watch
2
Special Weather Statement
2

Plain English

What these alerts mean

A warning means the hazard is happening or about to; a watch means conditions favour it; an advisory is a lesser hazard still worth planning around.

Freeze Watch

Sub-freezing temperatures are possible. Be ready to protect plants and pipes.

Frost Advisory

Frost is expected on the ground. Cover sensitive plants overnight.

Special Weather Statement

A heads-up about conditions that do not meet warning or advisory criteria but still deserve attention, such as a strong storm, patchy fog or a brief burst of snow.

Nearby

Alerts near Corvallis

Cities

Albany, OR4 Salem, OR2 Eugene, OR7 Springfield, OR7 Tigard, OR6 Beaverton, OR6

Neighbouring counties in Oregon

Polk County4 Lincoln County5 Lane County7 Linn County4 Marion County2 All of Oregon →

Questions

About Corvallis alerts

How do I get Corvallis weather alerts on my iPhone?

Install Forecast Bar, add Corvallis as a location, and turn on severe weather alerts. Every NWS warning, watch and advisory for Benton County then arrives as a push notification at the moment of issue, with Critical Alerts available for the most dangerous warnings. Forecast Bar also runs on iPad, Apple Watch, Mac and Apple TV.

Where do these alerts come from?

From the National Weather Service alert feed (api.weather.gov). NWS issues alerts by county and by forecast zone; this page lists every product that names Benton County, the county Corvallis sits in. Forecast Bar checks the feed continuously and this page refreshes within a few minutes of a change.

What is the difference between a watch, a warning and an advisory?

A warning means the hazard is occurring, imminent or very likely: act now. A watch means conditions are favourable for it to develop: prepare and stay informed. An advisory covers a hazard that is less serious than a warning but can still cause real inconvenience or danger if you are not ready for it.

Can I get this data as JSON?

Yes. /weather-alerts/or/corvallis.json returns the active alerts, the last 30 days and the 12-month counts for Corvallis, refreshed every minute. Please cache responses and credit National Weather Service as the source.

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Add Corvallis in Forecast Bar and every NWS warning, watch and advisory arrives as a push notification the moment it is issued, on iPhone, iPad, Apple Watch, Mac and Apple TV.

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