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IS45AIRPORT

Mast Field

Quincy, Illinois

MVFRUpdated 2h ago738 ft MSL

0

Runways

0

Frequencies

0

Procedures

0

NOTAMs

Quick Facts

ICAO

IS45

FAA

IS45

Elevation

738 ft MSL

Runways

0

Frequencies

0

Tower

No

Fuel

N/A

Coordinates

39.977, -91.334

Airport Information

Facility Type

AIRPORT

Elevation

738 ft MSL

Control Tower

No

Fuel Types

None listed

Coordinates

39.9767, -91.3340

Current Weather

METAR KUIN 272154Z AUTO 05007KT 10SM OVC014 25/22 A2988 RMK AO2 SLP113 T02500217 TSNO

Flight Category

MVFR

Wind

50° at 7 kt

Visibility

10+ SM

Temperature

25°C

Dewpoint

21.7°C

Altimeter

1011.90 inHg

Cloud Cover

OVC

Nearest weather from KUIN (9 NM away)

Observed 2026-06-27 21:54Z

Active NOTAMs

No active NOTAMs for IS45.

Nearby Airports in Illinois

IS45 Operational Overview

Location & Facility

Mast Field (IS45) is a airport located in Quincy, Illinois, United States. The field sits at an elevation of 738 feet above mean sea level (MSL) at coordinates 39.9767°N, 91.3340°W.

Communications & Operations

Mast Field is a non-towered (pilot-controlled) field.

Current Conditions

The current flight category at Mast Field is MVFR (Marginal VFR — reduced visibility or ceiling). Weather conditions are updated in real-time from official NOAA Aviation Weather Center observations.

Frequently Asked Questions

What is IS45?

IS45 is the ICAO identifier for Mast Field, a public-use airport located in Quincy, Illinois, United States.

How many runways does Mast Field have?

Mast Field (IS45) has 0 runways. See the runway table above for dimensions and surface types.

What is the elevation of IS45?

The field elevation of Mast Field is 738 feet above mean sea level (MSL).

Is fuel available at IS45?

No fuel types are currently listed for Mast Field. Contact the FBO directly for availability.

What are the current weather conditions at IS45?

The current flight category at Mast Field is MVFR. See the METAR section above for full decoded weather data including wind, visibility, temperature, and altimeter.

Are there active NOTAMs at IS45?

There are currently no active NOTAMs for Mast Field.

How do I access complete data for IS45?

Sign up for a free AeroCopilot account to access all frequencies, full NOTAM text with AI interpretation, decoded forecasts, and IFR procedure charts for Mast Field.

Where is Mast Field located?

Mast Field (IS45) is located in Quincy, Illinois, United States, at an elevation of 738 ft MSL.

Complete aviation intelligence for IS45

Live weather, decoded NOTAMs, IFR procedures, AI briefings, and more. Included in every AeroCopilot plan from $7.99/month.

Source: FAA faa-nasr· AIRAC 28-day cycle· Updated Jun 18, 09:58 PM UTC
Source: FAA noaa-awc-metar· Updated Jun 27, 09:54 PM UTC