United States
Barometric Pressure in Evanston, IL
Evanston is in Illinois, United States. These forecasts use the saved city coordinates; nearby weather model grid points and their elevations may differ.
- Coordinates: 42.0411, -87.6901
- Timezone: America/Chicago
- Approximate terrain elevation: 187 m
Current pressure
—hPa
- Surface pressure
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- Change over three hours
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Pressure trend and forecast
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Yesterday through the seven-day forecast. Drag across the chart to explore hourly pressure; release to return to now.
Predicted Rapid Changes
Daily Forecast
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Normal barometric pressure in Evanston
At about 187 m, a barometer or phone sensor in Evanston typically reads around 991 hPa (29.26 inHg), about 22 hPa (0.66 inHg) below the sea-level figures in weather reports.
| Reference | hPa | inHg | mmHg |
|---|---|---|---|
| Standard sea-level pressure (used in weather reports) | 1,013.25 | 29.92 | 760 |
| Typical surface pressure at about 187 m (standard-atmosphere estimate) | 991 | 29.26 | 743 |
Weather services convert local readings to sea level so that Evanston can be compared with places at other elevations.
Reading the pressure
Sea-level pressure allows comparison between places at different elevations. Surface pressure represents pressure at the modelled ground elevation. A rising or falling value describes a trend; it is not a complete weather forecast.
Barometric pressure in Evanston: common questions
What is normal barometric pressure in Evanston?
For weather comparisons, normal sea-level pressure is 1,013.25 hPa (29.92 inHg, 760 mmHg). Readings above it are higher than standard and readings below it are lower. A barometer measuring local pressure at about 187 m in Evanston typically reads around 991 hPa (29.26 inHg).
Why does my phone show a different pressure in Evanston than the weather report?
Phone sensors and household barometers measure pressure where you are, while weather reports adjust readings to sea level so places can be compared. In Evanston, that adjustment is about 22 hPa (0.66 inHg) under standard conditions, and it grows if you are on a higher floor or hill.
Is the barometric pressure in Evanston high or low today?
When live data loads, compare the current sea-level reading above with 1,013 hPa (29.92 inHg). The three-hour change and the seven-day trend usually say more about changing weather than a single value. Normal, high, and low pressure explained.