Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. Read More >

Current conditions at

Corvallis, Corvallis Municipal Airport (KCVO)

Lat: 44.5°NLon: 123.28333°WElev: 246.0ft.

Overcast

50°F

10°C

Humidity	76%
Wind Speed	N 8 MPH
Barometer	30.28 in (1025.4 mb)
Dewpoint	43°F (6°C)
Visibility	10.00 mi
Wind Chill	47°F (8°C)
Last update	21 Mar 11:30 AM PDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

6 Miles NNW Brownsville OR

Today
High: 55 °F
Sunny
Tonight
Low: 31 °F
Mostly Clear
then Frost
Sunday
High: 56 °F
Frost then
Mostly Sunny
Sunday Night
Low: 35 °F
Mostly Cloudy
then Patchy
Frost
Monday
High: 57 °F
Patchy Frost
then Mostly
Cloudy
Monday Night
Low: 46 °F
Chance
Showers
Tuesday
High: 58 °F
Showers
Tuesday Night
Low: 44 °F
Rain
Wednesday
High: 57 °F
Rain

Detailed Forecast

Today

Sunny, with a high near 55. North wind 7 to 10 mph.

Tonight

Widespread frost, mainly after 4am. Otherwise, mostly clear, with a low around 31. North wind 3 to 6 mph.

Sunday

Widespread frost, mainly before 9am. Otherwise, mostly sunny, with a high near 56. North wind 5 to 11 mph, with gusts as high as 18 mph.

Sunday Night

Patchy frost after 5am. Otherwise, mostly cloudy, with a low around 35. North wind 6 to 11 mph becoming light after midnight.

Monday

Patchy frost before 9am. Otherwise, partly sunny, with a high near 57. Light and variable wind.

Monday Night

A 50 percent chance of showers after 11pm. Mostly cloudy, with a low around 46.

Tuesday

Showers. High near 58. Chance of precipitation is 90%.

Tuesday Night

Rain. Mostly cloudy, with a low around 44.

Wednesday

Rain. Mostly cloudy, with a high near 57.

Wednesday Night

A chance of rain, mainly before 11pm. Snow level 3700 feet lowering to 2100 feet after midnight . Partly cloudy, with a low around 34.

Thursday

Mostly sunny, with a high near 56.

Thursday Night

Mostly clear, with a low around 33.

Friday

Sunny, with a high near 62.

Additional Forecasts and Information

Zone Area Forecast for Linn County Lowlands, OR

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ABOUT THIS FORECAST

Point Forecast:

6 Miles NNW Brownsville OR
44.47°N 123.04°W (Elev. 282 ft)

11:41 am PDT Mar 21, 2026

Forecast Valid:

11am PDT Mar 21, 2026-6pm PDT Mar 27, 2026

Forecast Discussion

Additional Resources

Radar & Satellite Image

Link to Local Radar Data

Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation