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Thunderstorm Chances Focus on Today, Wednesday in Colby

August 23, 2026 weather, forecast

Colby, Kansas — The next seven days bring highs ranging from 88°F to 97°F, lows from 63°F to 68°F, rain chances focused on Today, Tuesday, Wednesday, Thursday and Saturday. Today's forecast is still included below, but the main story is the week ahead.

What Matters Most This Week

Warmest day: Monday, with a high near 97°F.
Coolest morning: Tuesday, with a low near 63°F.
Rain chances: Best chances on Today, Tuesday, Wednesday, Thursday and Saturday; seven-day expected rainfall totals about 0.53 inches.
Storm watch: Thunderstorm chances appear in the forecast on Today, Wednesday, Thursday and Friday.
Windiest stretch: Today, with gusts up to 41 mph.
Sun safety: UV runs high on Today, Monday, Tuesday and Wednesday and other days.

7-Day Forecast

Day	Conditions	High / Low	Rain	Peak Gust
Today 8/23	Showers And Thunderstorms Likely then Partly Sunny	91° / 65°	61% / 0.11"	41 mph
Monday 8/24	Sunny	97° / 66°	2%	21 mph
Tuesday 8/25	Chance Rain Showers	92° / 63°	43% / 0.03"	27 mph
Wednesday 8/26	Chance Showers And Thunderstorms then Sunny	88° / 63°	29% / 0.06"	23 mph
Thursday 8/27	Chance Showers And Thunderstorms	89° / 63°	40% / 0.19"	27 mph
Friday 8/28	Slight Chance Showers And Thunderstorms then Sunny	92° / 65°	20% / 0.02"	37 mph
Saturday 8/29	Mostly Sunny	94° / 68°	13% / 0.11"	22 mph

Today's Details — Sunday, August 23

Conditions: Showers And Thunderstorms Likely then Partly Sunny
High / Low: 91°F / 65°F
Wind: S 23 mph, gusts to 41 mph
Precipitation: 61% chance, 0.11 inches expected over 3 hours
UV Index: 7.7 — Very High — limit outdoor exposure
Sunrise / Sunset: 07:04 / 20:28
Daylight: 13.4 hours (8.6 hours of sunshine expected)

What Matters Most Today

Rain focus: 61% chance, peaking around 5AM.
Expected rainfall: about 0.11 inches.
Wind impact: gusts up to 41 mph.
Sun safety: UV index reaches 7.7; sunscreen still matters even with cloud cover.
Best outdoor window: Evening (lowest average rain risk).

Comfort & Conditions

Humidity: 67%
Dew Point: Up to 67°F — muggy conditions

Hour-by-Hour Breakdown

Morning (6AM–Noon): Overcast, 68°F, 30% chance of precipitation, winds 16 mph, 86% humidity
Afternoon (Noon–6PM): Clear sky, 84°F, winds 13 mph, 59% humidity
Evening (6PM–Midnight): Clear sky, 84°F, 52% humidity

Air Quality & Allergens

Air Quality Index: 50 (peak 52) — Moderate
Acceptable air quality; some pollutants may be a concern for sensitive individuals.
PM2.5: 14.8 µg/m³
Dust: 32.0 µg/m³

Forecast data provided by Open-Meteo. Air quality data from Open-Meteo Air Quality API. For severe weather alerts, visit your local National Weather Service office.