Grissom AFB, Indiana 7 Day & Night Forecast & Conditions

Current Conditions

Maps Alerts Climate Index

Clear 87°F 31°C Heat Index: 94°F	Observed at: Grissom AFB, IN	Elevation: 780 ft | 238 m
	Last Updated: July 16, 8:15 PM Timezone: GMT -5/-4
	Sky Conditions: Clear	Temperature: 87°F | 31°C
	Pressure: 29.16 in | 987.6 mb	Dewpoint: 73°F | 23°C
	Humidity: 62%	Wind: NNW 2 mph | NNW 3 kph
	Feels Like: 96°F | 36°C	Visibility: 58.7 mi | 94.5 km
	Lat/Long: 40.65 | -86.15	Sunrise: 6:27 AM   Sunset: 9:13 PM

7 Day Graphical Forecast

Valid: 8:20 PM 7/16/2026

Today Mostly Clear 90 |71 °F 32 |21 °C 5% Chance Precipitation Friday Overcast 90 |73 °F 32 |23 °C 29% Chance Precipitation Saturday Thunderstorm 86 |73 °F 30 |23 °C 77% Chance Precipitation Sunday Overcast 80 |61 °F 26 |16 °C 25% Chance Precipitation Monday Overcast 81 |62 °F 27 |17 °C 20% Chance Precipitation Tuesday Thunderstorm 87 |68 °F 31 |20 °C 51% Chance Precipitation Wednesday Overcast 70 |54 °F 21 |12 °C 16% Chance Precipitation

7 Hour Graphical Forecast

Valid: 8:20 PM 7/16/2026

8 PM Clear 88 °F 1% Chance Precipitation

9 PM Clear 85 °F 2% Chance Precipitation

10 PM Mostly Clear 82 °F 4% Chance Precipitation

11 PM Clear 80 °F 5% Chance Precipitation

12 AM Clear 78 °F 6% Chance Precipitation

1 AM Clear 77 °F 5% Chance Precipitation

2 AM Clear 76 °F 4% Chance Precipitation

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

7 Day & Night Weather Forecast for Grissom AFB, IN - (Fahrenheit & Celsius) Valid: 8:20 PM 7/16/2026 Today Mostly Clear with a high near 90°F [32°C]. WNW wind to around 5 mph [9 kph], with gusts to near 10 mph [16 kph]. Dewpoint near 73°F [23°C] with humidity of 95%. Pressure around 29.16 in [987.6 mb]. UV Index: 7.45. Chance of precipitation 5% with QPF of 0.00 in [0.0 mm]. Tonight Mostly Clear with a low around 71°F [21°C]. WNW wind to around 5 mph [9 kph], with gusts to near 10 mph [16 kph]. Chance of precipitation 5% with QPF of 0.00 in [0.0 mm]. Friday Overcast with a high near 90°F [32°C]. S wind to around 11 mph [17 kph], with gusts to near 17 mph [27 kph]. Dewpoint near 73°F [23°C] with humidity of 94%. Pressure around 29.16 in [987.6 mb]. UV Index: 5.95. Chance of precipitation 29% with QPF of 0.00 in [0.0 mm]. Friday Night Overcast with a low around 73°F [23°C]. S wind to around 11 mph [17 kph], with gusts to near 17 mph [27 kph]. Chance of precipitation 29% with QPF of 0.00 in [0.0 mm]. Saturday Thunderstorm with a high near 86°F [30°C]. WSW wind to around 16 mph [26 kph], with gusts to near 26 mph [42 kph]. Dewpoint near 73°F [23°C] with humidity of 95%. Pressure around 29.16 in [987.6 mb]. UV Index: 7.55. Chance of precipitation 77% with QPF of 0.18 in [4.6 mm]. Saturday Night Thunderstorm with a low around 73°F [23°C]. WSW wind to around 16 mph [26 kph], with gusts to near 26 mph [42 kph]. Chance of precipitation 77% with QPF of 0.18 in [4.6 mm]. Sunday Overcast with a high near 80°F [26°C]. NE wind to around 7 mph [11 kph], with gusts to near 18 mph [28 kph]. Dewpoint near 73°F [23°C] with humidity of 93%. Pressure around 29.16 in [987.6 mb]. UV Index: 7.5. Chance of precipitation 25% with QPF of 0.00 in [0.0 mm]. Sunday Night Overcast with a low around 61°F [16°C]. NE wind to around 7 mph [11 kph], with gusts to near 18 mph [28 kph]. Chance of precipitation 25% with QPF of 0.00 in [0.0 mm]. Monday Overcast with a high near 81°F [27°C]. S wind to around 9 mph [15 kph], with gusts to near 21 mph [33 kph]. Dewpoint near 73°F [23°C] with humidity of 93%. Pressure around 29.16 in [987.6 mb]. UV Index: 7.3. Chance of precipitation 20% with QPF of 0.00 in [0.0 mm]. Monday Night Overcast with a low around 62°F [17°C]. S wind to around 9 mph [15 kph], with gusts to near 21 mph [33 kph]. Chance of precipitation 20% with QPF of 0.00 in [0.0 mm]. Tuesday Thunderstorm with a high near 87°F [31°C]. WSW wind to around 18 mph [29 kph], with gusts to near 35 mph [56 kph]. Dewpoint near 73°F [23°C] with humidity of 96%. Pressure around 29.16 in [987.6 mb]. UV Index: 7. Chance of precipitation 51% with QPF of 0.02 in [0.6 mm]. Tuesday Night Thunderstorm with a low around 68°F [20°C]. WSW wind to around 18 mph [29 kph], with gusts to near 35 mph [56 kph]. Chance of precipitation 51% with QPF of 0.02 in [0.6 mm]. Wednesday Overcast with a high near 70°F [21°C]. N wind to around 17 mph [28 kph], with gusts to near 28 mph [45 kph]. Dewpoint near 73°F [23°C] with humidity of 88%. Pressure around 29.16 in [987.6 mb]. UV Index: 7.4. Chance of precipitation 16% with QPF of 0.00 in [0.0 mm]. Wednesday Night Overcast with a low around 54°F [12°C]. N wind to around 17 mph [28 kph], with gusts to near 28 mph [45 kph]. Chance of precipitation 16% with QPF of 0.00 in [0.0 mm].

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7 Day and Night - QPF Forecast for Grissom AFB, IN

Today: 0.0 mm | 0.00 in

Tonight: 0.0 mm | 0.00 in

Friday: 0.0 mm | 0.00 in

Friday Night: 0.0 mm | 0.00 in

Saturday: 4.6 mm | 0.18 in

Saturday Night: 4.6 mm | 0.18 in

Sunday: 0.0 mm | 0.00 in

Sunday Night: 0.0 mm | 0.00 in

Monday: 0.0 mm | 0.00 in

Monday Night: 0.0 mm | 0.00 in

Tuesday: 0.6 mm | 0.02 in

Tuesday Night: 0.6 mm | 0.02 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 Grissom AFB, IN

Today: WNW @ 9 kph | 5 mph

Tonight: WNW @ 9 kph | 5 mph

Friday: S @ 17 kph | 11 mph

Friday Night: S @ 17 kph | 11 mph

Saturday: WSW @ 26 kph | 16 mph

Saturday Night: WSW @ 26 kph | 16 mph

Sunday: NE @ 11 kph | 7 mph

Sunday Night: NE @ 11 kph | 7 mph

Monday: S @ 15 kph | 9 mph

Monday Night: S @ 15 kph | 9 mph

Tuesday: WSW @ 29 kph | 18 mph

Tuesday Night: WSW @ 29 kph | 18 mph

Wednesday: N @ 28 kph | 17 mph

Wednesday Night: N @ 28 kph | 17 mph

7 Day and Night - Maximum Humidity Forecast for Grissom AFB, IN

Today: 95 %

Tonight: 95 %

Friday: 94 %

Friday Night: 94 %

Saturday: 95 %

Saturday Night: 95 %

Sunday: 93 %

Sunday Night: 93 %

Monday: 93 %

Monday Night: 93 %

Tuesday: 96 %

Tuesday Night: 96 %

Wednesday: 88 %

Wednesday Night: 88 %

7 Day and Night - Snowfall Totals Forecast for Grissom AFB, IN

Today: 0.0 cm | 0.00 in

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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