Fiatt, Illinois 7 Day & Night Forecast & Conditions

Current Conditions

Maps Alerts Climate Index

Clear 80°F 27°C Heat Index: 83°F	Observed at: Fiatt, IL	Elevation: 813 ft | 248 m
	Last Updated: July 16, 10:15 PM Timezone: GMT -5/-4
	Sky Conditions: Clear	Temperature: 80°F | 27°C
	Pressure: 29.28 in | 991.5 mb	Dewpoint: 70°F | 21°C
	Humidity: 70%	Wind: SSW 4 mph | SSW 6 kph
	Feels Like: 86°F | 30°C	Visibility: 48.7 mi | 78.4 km
	Lat/Long: 40.5603 | -90.1797	Sunrise: 5:44 AM   Sunset: 8:29 PM

7 Day Graphical Forecast

Valid: 10:20 PM 7/16/2026

Tonight Overcast 70 °F 3% Chance Precipitation Friday Overcast 91 |73 °F 21% Chance Precipitation Saturday Drizzle 94 |74 °F 23% Chance Precipitation Sunday Light Drizzle 84 |68 °F 13% Chance Precipitation Monday Light Showers 91 |69 °F 19% Chance Precipitation Tuesday Overcast 86 |66 °F 19% Chance Precipitation Wednesday Overcast 70 |51 °F 4% Chance Precipitation

7 Hour Graphical Forecast

Valid: 10:20 PM 7/16/2026

10 PM Clear 81 °F 1% Chance Precipitation

11 PM Clear 78 °F 2% Chance Precipitation

12 AM Overcast 77 °F 2% Chance Precipitation

1 AM Mostly Clear 76 °F 2% Chance Precipitation

2 AM Overcast 76 °F 3% Chance Precipitation

3 AM Overcast 76 °F 3% Chance Precipitation

4 AM Partly Cloudy 75 °F 4% Chance Precipitation

7 Day Textual Forecast - with QPF, Max Wind, Humidity, Snowfall & UV Index

7 Day & Night Weather Forecast for Fiatt, IL - (Fahrenheit & Celsius) Valid: 10:20 PM 7/16/2026 Tonight Overcast with a low around 70°F [21°C]. SSW wind to around 4 mph [7 kph], with gusts to near 6 mph [10 kph]. Chance of precipitation 3% with QPF of 0.00 in [0.0 mm]. Friday Overcast with a high near 91°F [33°C]. WSW wind to around 11 mph [17 kph], with gusts to near 16 mph [26 kph]. Dewpoint near 70°F [21°C] with humidity of 93%. Pressure around 29.28 in [991.5 mb]. UV Index: 7.6. Chance of precipitation 21% with QPF of 0.00 in [0.0 mm]. Friday Night Overcast with a low around 73°F [23°C]. WSW wind to around 11 mph [17 kph], with gusts to near 16 mph [26 kph]. Chance of precipitation 21% with QPF of 0.00 in [0.0 mm]. Saturday Drizzle with a high near 94°F [34°C]. WNW wind to around 14 mph [23 kph], with gusts to near 28 mph [45 kph]. Dewpoint near 70°F [21°C] with humidity of 92%. Pressure around 29.28 in [991.5 mb]. UV Index: 7.7. Chance of precipitation 23% with QPF of 0.05 in [1.2 mm]. Saturday Night Drizzle with a low around 74°F [23°C]. WNW wind to around 14 mph [23 kph], with gusts to near 28 mph [45 kph]. Chance of precipitation 23% with QPF of 0.05 in [1.2 mm]. Sunday Light Drizzle with a high near 84°F [29°C]. E wind to around 9 mph [14 kph], with gusts to near 17 mph [28 kph]. Dewpoint near 70°F [21°C] with humidity of 95%. Pressure around 29.28 in [991.5 mb]. UV Index: 7.7. Chance of precipitation 13% with QPF of 0.01 in [0.2 mm]. Sunday Night Light Drizzle with a low around 68°F [20°C]. E wind to around 9 mph [14 kph], with gusts to near 17 mph [28 kph]. Chance of precipitation 13% with QPF of 0.01 in [0.2 mm]. Monday Light Showers with a high near 91°F [33°C]. S wind to around 10 mph [16 kph], with gusts to near 26 mph [42 kph]. Dewpoint near 70°F [21°C] with humidity of 95%. Pressure around 29.28 in [991.5 mb]. UV Index: 7.7. Chance of precipitation 19% with QPF of 0.31 in [7.8 mm]. Monday Night Light Showers with a low around 69°F [20°C]. S wind to around 10 mph [16 kph], with gusts to near 26 mph [42 kph]. Chance of precipitation 19% with QPF of 0.31 in [7.8 mm]. Tuesday Overcast with a high near 86°F [30°C]. WNW wind to around 18 mph [30 kph], with gusts to near 34 mph [54 kph]. Dewpoint near 70°F [21°C] with humidity of 81%. Pressure around 29.28 in [991.5 mb]. UV Index: 7.2. Chance of precipitation 19% with QPF of 0.00 in [0.0 mm]. Tuesday Night Overcast with a low around 66°F [19°C]. WNW wind to around 18 mph [30 kph], with gusts to near 34 mph [54 kph]. Chance of precipitation 19% with QPF of 0.00 in [0.0 mm]. Wednesday Overcast with a high near 70°F [21°C]. NNE wind to around 14 mph [23 kph], with gusts to near 28 mph [44 kph]. Dewpoint near 70°F [21°C] with humidity of 90%. Pressure around 29.28 in [991.5 mb]. UV Index: 7.45. Chance of precipitation 4% with QPF of 0.00 in [0.0 mm]. Wednesday Night Overcast with a low around 51°F [11°C]. NNE wind to around 14 mph [23 kph], with gusts to near 28 mph [44 kph]. Chance of precipitation 4% with QPF of 0.00 in [0.0 mm].

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7 Day and Night - QPF Forecast for Fiatt, IL

Tonight: 0.0 mm | 0.00 in

Friday: 0.0 mm | 0.00 in

Friday Night: 0.0 mm | 0.00 in

Saturday: 1.2 mm | 0.05 in

Saturday Night: 1.2 mm | 0.05 in

Sunday: 0.2 mm | 0.01 in

Sunday Night: 0.2 mm | 0.01 in

Monday: 7.8 mm | 0.31 in

Monday Night: 7.8 mm | 0.31 in

Tuesday: 0.0 mm | 0.00 in

Tuesday Night: 0.0 mm | 0.00 in

Wednesday: 0.0 mm | 0.00 in

Wednesday Night: 0.0 mm | 0.00 in

7 Day and Night - Maximum Wind Speed Forecast for Fiatt, IL

Tonight: SSW @ 7 kph | 4 mph

Friday: WSW @ 17 kph | 11 mph

Friday Night: WSW @ 17 kph | 11 mph

Saturday: WNW @ 23 kph | 14 mph

Saturday Night: WNW @ 23 kph | 14 mph

Sunday: E @ 14 kph | 9 mph

Sunday Night: E @ 14 kph | 9 mph

Monday: S @ 16 kph | 10 mph

Monday Night: S @ 16 kph | 10 mph

Tuesday: WNW @ 30 kph | 18 mph

Tuesday Night: WNW @ 30 kph | 18 mph

Wednesday: NNE @ 23 kph | 14 mph

Wednesday Night: NNE @ 23 kph | 14 mph

7 Day and Night - Maximum Humidity Forecast for Fiatt, IL

Tonight: 92 %

Friday: 93 %

Friday Night: 93 %

Saturday: 92 %

Saturday Night: 92 %

Sunday: 95 %

Sunday Night: 95 %

Monday: 95 %

Monday Night: 95 %

Tuesday: 81 %

Tuesday Night: 81 %

Wednesday: 90 %

Wednesday Night: 90 %

7 Day and Night - Snowfall Totals Forecast for Fiatt, IL

Tonight: 0.0 cm | 0.00 in

Friday: 0.0 cm | 0.00 in

Friday Night: 0.0 cm | 0.00 in

Saturday: 0.0 cm | 0.00 in

Saturday Night: 0.0 cm | 0.00 in

Sunday: 0.0 cm | 0.00 in

Sunday Night: 0.0 cm | 0.00 in

Monday: 0.0 cm | 0.00 in

Monday Night: 0.0 cm | 0.00 in

Tuesday: 0.0 cm | 0.00 in

Tuesday Night: 0.0 cm | 0.00 in

Wednesday: 0.0 cm | 0.00 in

Wednesday Night: 0.0 cm | 0.00 in

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